Минералогический Музей им. А.Е. Ферсмана
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Journal/2018 engl — различия между версиями
(→‎Issue 4)
 
(не показано 37 промежуточных версий 2 участников)
Строка 33: Строка 33:
  
 
===Сontent===
 
===Сontent===
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=== '''Issue 1''' Revision articles and brief reports on the study of museum samples===  
 
=== '''Issue 1''' Revision articles and brief reports on the study of museum samples===  
 
{{NDM_article
 
{{NDM_article
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| Авторы = Plechov P.Yu.  
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| Авторы = Plechov P.Yu. (Editorial)
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| Название = Changes to the editorial policy of the journal "New Data on Minerals", pp. 1-2
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| Название = Changes in the editorial policy of the journal "New data on minerals", p. 1-2
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| Аннотация =  
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| Файл = Plechov2018-1_rus.pdf
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| Файл =  
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| Приложения =
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}} {{NDM_article
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}}{{NDM_article
 
| Авторы = Gritsenko Yu.D.  
 
| Авторы = Gritsenko Yu.D.  
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| Название = Collection of Titanium Grenades of the Fersman Mineralogical Museum of the Russian Academy of Sciences, pp. 3-5
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| Название = Titanium garnets collection of the A.E.Fersman Mineralogical Museum of the Russian Academy of Sciences, p. 3-5
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| Аннотация = Titanium garnets are widespread in many skarns and ultrabasic alkaline massifs. Shorlomite, morimotoite and andradite form a wide series of solid solutions. The most common are melanite (Ti-containing andradite) and chorlomite. A collection of titanium and titanium-containing garnets of the Mineralogical Museum named after A.E. Fersman RAS. All obtained compositions of pomegranates range from pure andradite to a field corresponding to the composition of morimotoite. Not one shorlomite among the studied samples of the collection has been identified. Recalculation of the composition of pomegranates from literary sources also showed the wide development of morimotoite and titanium-containing andradite; actually, shorlomite turned out to be rare. The data obtained allow us to conclude that morimotoite is much more widespread, in contrast to shorlomite, whose reliable findings are much smaller than previously thought. <br>
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| Аннотация = Titanium garnets are widespread in many skarns and alkaline massifs. It was believed that shorlomite is much more widespread than morimotoite in the collection of the Fersman Mineralogical Museum RAS. We studied the collection of titanium and titanium-containing garnets of the Fersman Mineralogical Museum, which includes 22 samples from 19 different deposits. We did not find a single schorlomite among the studied samples. The ratio of morimotoite and shorlomite minals varies from 6.9 to 0.8 in Ti-andradite, and from 1.5 to 1.1 in titanium garnets. According to the nomenclature of the garnet supergroup, most analyzes of schorlomite in the literature correspond to the mineral species morimotoite. hus, morimotoite is more widespread than schorlomite, the reliable finds of which are much less than previously thought.  
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'''Key words:''' titanium garnets, morimotoite, shorlomite, andradite, melanite, Fersman Mineralogical Museum of RAS.
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<p>Keywords: titanium garnets, shorlomite, morimotoite, melanite, Fersman Mineralogical Museum of the Russian Academy of Sciences.<br>
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| Файл =
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| Файл = Gritsenko2018-1_rus.pdf
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}} {{NDM_article
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| Приложения = Gritsenko2018-1_supp_rus.xlsx
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| Авторы = Pautov L.A., Mirakov M.A., Schodibekov M.A.
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}}{{NDM_article
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| Название = Find of herzenbergite in granite myarolite pegmatite of Vez-Dara in the South-Western Pamirs (Tajikistan), pp. 6-14
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| Авторы = Pautov L.A., Mirakov M.A., Shodibekov M.A., Khvorov P.V.
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| Аннотация = Herzenbergite SnS was found in the near-myarolite complex of granite oligoclase-microcline type pegmatite Ves-Dara (vein 86) (SW Pamir, Tajikistan) in a medium-grained feldspar-quartz rock. Minor minerals: biotite, sherl (graphic with quartz), garnet of the spessartine series - almandine, albite. It forms abnormal aggregates, short veins up to 5 mm, folded by lamellar grains 40–80 x 10–25 μm, replaced by “warlamovite”, in intergrowth with goethite, zircon, churchite- (Y), Sc-containing Mn-tantaloniobate. Col. steel gray (fresh chipped), dark gray (weathered surface). In reflected light, white: Rg = 49.9, Rp = 43.5% (560 nm). The birefringence is weak (air), distinct (in immersion). Anisotropy with color effects in the air is strong, in immersion it is very strong. Microhardness 79–86 kgf / mm2 (load 20 g). Powder chart is shown. Cell parameters a = 4.331 (2), b = 11.195 (3), c = 3.983 (2) Ǻ. Chem. composition (microprobe, wt.%): Sn 77.86–79.01; S 20.96-21.45. Pb, Cu, Sb, Fe below the detection limit. Formula Sn0.99–1.02S1.00. Direct crystallization under reducing conditions from an enriched Sn + 2 acid solution at the low-temperature hydrothermal stage of pegmatite formation is supposed. Partial substitution by a “warlamite” aggregate can be due to both the instability of SnS with an increase in the pH of solutions at the hypogenic stage and the result of hypergenic oxidation. It is the first find in Tajikistan.<br>
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| Название = Finding of herzenbergite in the Vez-Dara granite miarolitic pegmatite at South West Pamir (Tajikistan), p. 6-14
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'''Key words:''' herzenbergite, myarolic pegmatite, Southwestern Pamir, Tajikistan, Vez-Dara, “Varlamovite”.
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| Аннотация = Herzenbergite, SnS, was found in the near-miarolic complex of the Vez-Dara granite oligoclase-microcline pegmatite (vein #86) (South West Pamir, Tajikistan) in medium-grained K-feldspar-quartz rock. Minor minerals are biotite, schörl (graphics with quartz), spessartite-almandine garnet, albite. Herzenbergite occurs as irregular shape aggregates and veinlets up to 5 mm long, folded by lamellar grains 40–80 x 10–25 µm in size, partially replaced by “varlamovite”, in intergrowth with goethite, zircon, churchite- (Y), Sc-containing Mn-tantaloniobate. Herzenbergite is steel gray (in a fresh fracture), dark gray (on a weathered surface). In the reflected light is white; Rg = 49.9, Rp = 43.5% (560 nm). Bireflectance is weak (in air), and is clear (in immersion). Anisotropy with color effects in air is strong, in immersion is very strong. VHN 79–86 (at load 20 g). X-ray powder data are given. Unit cell parameters are <i>a</i> = 4.331(2), <i>b</i> = 11.195(3), <i>c</i> = 3.983(2) Ǻ. Chemical composition (microprobe, wt%): Sn 77.86–79.01; S 20.96–21.45, Pb, Cu, Sb, Fe are below the detection limit. The formula is Sn<sub>0.99–1.02</sub>S<sub>1.00</sub>. A direct crystallization under reducing conditions from an acidic solution enriched with Sn<sup>+2</sup> at the low-temperature hydrothermal stage of pegmatite formation is assumed. Partial substitution with "varlamovite" aggregate can be caused both by the instability of SnS with an increase in the pH of solutions at the hypogenic stage, and as the result of supergene oxidation. It is the first find of herzenbergite in Tajikistan.
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| Файл =
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<p>Keywords: herzenbergite, miarolitic pegmatite, South West Pamir, Tajikistan, Vez-Dara, "varlamovite".<br>
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}} {{NDM_article
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| Файл = Pautov2018-1_rus.pdf
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| Приложения =
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}}{{NDM_article
 
| Авторы = Shcherbakov V.D., Plechov P.Yu.
 
| Авторы = Shcherbakov V.D., Plechov P.Yu.
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| Название = Phosphorus-containing olivine from lava flow 2012-2013 Tolbachik volcano, pp. 15-17
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| Название = P- bearing olivine from lava flow of 2012-2013 Tolbachik volcano eruption, p. 15-17  
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| Аннотация = 160 high-precision analyzes of olivine from lava and tephra eruptions of the Tolbachik volcano have been published. Lava and tephra were taken while still hot during the eruption. It is shown that phosphorus-rich zones were formed during skeletal growth of olivine already during the flow of lava along the surface.
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| Аннотация = 160 high-precision microprobe analyzes of olivine from lava and tephra of volcanic Tolbachik eruption are published in the paper. Hot-state lava and tephra were collected during the eruption. Phosphorus rich zones in olivine were formed during the skeletal growth in lava during flow on the surface.  
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| Файл =
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<p>Keywords: P-bearing olivine, high-precision microprobe analyses, Tolbachik, Kamchatka.<br>
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}} {{NDM_article
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| Файл = Shcherbakov_Plechov2018-1_eng.pdf
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| Авторы = Vlasov E.A., Nikolaev Yu.N., Apletalin A.V., Pustovalov V.Yu.  
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| Приложения = Sherbakov_Plechov2018-1_supp_eng.xlsx
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| Название = Minerals of copper from metamorphic veins of the upper river. Ilirneveyem, Chukotka, pp. 18-19
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}}{{NDM_article
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| Аннотация = In the upper river. Ilirneveyem (Dividing gold ore node) in the modified andesites installed epidote-calcite-prenite veins with copper mineralization. Copper minerals are represented by native copper, domakeitis, chalcosine and spioncopite. The formation of veins is associated with the processes of low-grade metamorphism of the prenite-pumpellite facies, which captured the volcanics of the Tytylveem Formation.<br>
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| Авторы = Vlasov E.A., Nikolaev Yu.N., Apletalin A.V., Pustovalov V.Yu.
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'''Key words:''' Western Chukotka, native copper, low-grade metamorphism, prenite-pumpellite facies of metamorphism.
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| Название = Copper minerals from metamorphogenic veins of the headwaters of the river Ilirneivaem, Chukotka, p. 18-19
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| Файл =
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| Аннотация = In the upper reaches of the Ilirneivey river, veins of epidote-calcite-prehnite composition with copper mineralization were found in altered andesites. The copper minerals are native copper, domeykite, chalcocite and spionkopite. The formation of veins is associated with the processes of low-grade metamorphism of the prehnite-pumpellyite facies, which captured the volcanites of the Tytylveem formation.
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}} {{NDM_article
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<p>Keywords: Western Chukotka, native copper, low-grade metamorphism, prehnite-pumpellyite facies of metamorphism.<br>
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| Файл = Vlasov2018-1_rus.pdf
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| Приложения =
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}}{{NDM_article
 
| Авторы = Generalov M.E., Pautov L.A.  
 
| Авторы = Generalov M.E., Pautov L.A.  
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| Название = Porpetsit Second Lieutenant Bilberry, p. 20-24
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| Название = Second Lieutenant Chernik Porpezite, p. 20-24
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| Аннотация = When studying samples of porpecite, transferred in 1909 to the collection of the Mineralogical Museum of G.P. Bilberry, it was found that in addition to porpecite itself (palladium gold with a fineness of 600–700), they contain native palladium and sulfide phases of the composition Pd4S. It was also found out that placers where platinoid minerals were found at the end of the 19th century are located not in Georgia, as indicated in the literature, but in Turkey, near the city of Artvin.<br>
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| Аннотация = When studying the samples of porpezite transferred to the collection of the Mineralogical Museum by the G.P. Chernik in 1909, it was found that in addition to the proper porpezite (palladium gold of 600-700 probes), they contain native palladium and sulphide phases of Pd<sub>4</sub>S composition. It was also found out that placers, where platinum minerals were found at the end of the XIX century, are located not in Georgia, as indicated in the literature, but in Turkey, near the city of Artvin.
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'''Key words:''' porpecite, Mineralogical Museum named after A.E. Fersman RAS, G.P. Blueberries, placers, Artvin.
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<p>Keywords: porpezite, Fersman Mineralogical Museum of the RAS, G.P. Chernik, placers, Artvin.<br>
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| Файл =
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| Файл = Generalov_Pautov2018-1_rus.pdf
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}} {{NDM_article
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}}{{NDM_article
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| Авторы = Generalov M.E.
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| Авторы = Generalov M.E.  
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| Название = Faberge and Abraxas, pp. 25-29
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| Название = Faberge and Abraxas, p. 25-29
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| Аннотация = The impression of the press made by Faberge gives us reason to recall the outstanding citizen of Russia and the USA Boris Alexandrovich Bakhmetev and the close connection of mysticism, philosophy, politics and art, traced from ancient times to the events of the 20th century.<br>
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| Аннотация = Impression on sealing wax of the seal made by Faberge Company tells about famous citizen of Russia and the United States, Boris Alexandrovich Bakhmetev, and about the connection of mysticism, philosophy, politics and art from ancient times to the early 20th century.
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'''Key words:''' print of the press, Faberge firm, Fersman Mineralogical Museum of RAS, B.A. Bakhmetev.
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<p>Keywords: seal, stonecurving, Faberge, Bakhmetev, history.<br>
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| Файл =
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| Файл = Generalov2018-1_rus.pdf
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}} {{NDM_article
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}}{{NDM_article
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| Авторы = Pekov I.V.
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| Авторы = Pekov I.V.  
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| Название = In memory of E.I.Semenov (1927-2017), pp. 30-32
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| Название = In memoream of E.I.Semenov (1927-2017), p. 30-32
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| Аннотация =
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| Файл = Pekov2018-1_rus.pdf
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| Приложения =
 
}}
 
}}
  
 
=== '''Issue 2''' Articles and short reports on the study of mineralogical objects===  
 
=== '''Issue 2''' Articles and short reports on the study of mineralogical objects===  
 
{{NDM_article
 
{{NDM_article
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| Авторы = Pautov L.A., Shodibekov M.A., Mirakov M.A., Fayziev A.R., Khvorov P.V.  
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| Авторы = Pautov L.A., Shodibekov M.A., Mirakov M.A., Fayziev A.R., Khvorov P.V.
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| Название = Uranopolicraz (U, Y) (Ti, Nb) 2O6 from myarol pegmatite Museum in the area of ​​the Kuhilal deposit (Southwestern Pamir, Tajikistan), pp. 34-39
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| Название = Uranopolycrase (U,Y)(Ti,Nb)<sub>2</sub>O<sub>6</sub> from the Museum miarolitic pegmatite in the area of ​​the Kukhilal deposit (South West Pamir, Tajikistan)
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| Аннотация = Uranopolicraz (U, Y) (Ti, Nb) 2O6 was found in the Myarol quartz-microcline-oligoclase pegmatite Museum in the contours of the noble spinel Kuhilal deposit (Yu-Z Pamir) in a block of translucent, milk quartz near the myarol complex. Forms tabular grains of rectangular cross section, rarely crystals up to 0.6 x 4 mm. Sometimes fused with Nb-containing rutile (Nb2O5 5.68 wt.%). Externally, it is indistinguishable from associating polycrase- (Y). The color is black, the fracture is conchoidal, the luster on the cleaved is resinous. Fragile. The trait is light brown. In reflected light, light gray, R ~ 20%, isotropic. Internal reflexes are rare red-brown. Microhardness VHN100 = 596. Chem. composition (molecular weight, wt.%): Nb2O5 8.75–13.27, Ta2O5 0.63–1.59, WO3 0.95–1.97, TiO2 31.00–34.39, UO2 31.59–41.41, ThO2 2.45–5.20, Y2O3 5.95–9.85, Ce2O3 0.00– 0.77, Nd2O3 0.00–0.38, Dy2O3 0.99–2.12, Ho2O3 0.00–0.96, Er2O3 0.84–1.87, Yb2O3 0.73–1.97, FeO 0.00–0.32, MnO 0.00–0.32, CaO 0.00–0.69, total 98.16–101.32. The average formula (calculation for O = 6 at.): (U0.54Y0.26Th0.05Dy0.03Er0.03Yb0.03Ho0.01Nd0.01Ca0.02Fe0.01Mn0.01) 1.00 (Ti1.63Nb0.34Ta0.02 W0.02) 2.01 O6. Metamycten. After calcination (1000 ° C, current Ar) gives an x-ray of uranopolycrase with a subordinate amount of brannerite. Zones along microcracks are supposedly replaced by the X-ray amorphous phase of the pyrochlore type (after calcination, a = 10.299 (4) Å). Minerals of a number of polycrase are the main concentrators of uranium in pegmatite Museum. It is the first find in Tajikistan.<br>
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| Файл = Pautov2018-2_rus.pdf
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'''Key words:''' myarolic pegmatite, Southwestern Pamir, Museum pegmatite, Tajikistan, Kuhilal, uranopolicraz, polycraz- (Y), brannerite, metamict
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| Аннотация = Uranopolycrase (U,Y)(Ti,Nb)<sub>2</sub>O<sub>6</sub> was found in the Museum miarolitic quartz-microcline-oligoclase pegmatite in the contours of the Kukhilal noble spinel deposit (South West Pamir) in a block semi-transparent, milky quartz of the near-miarolitic complex. It forms tabular grains of rectangular cross-section, rarely crystals up to 0.6 x 4 mm. Sometimes it growth together with Nb-containing rutile (Nb<sub>2</sub>O<sub>5</sub> 5.68 wt%), which outwardly is indistinguishable from the associating polycrase-(Y). The color is black, fracture is concoidal, lustre is pitchy. Fragile. Streak is light brown. In the reflected light is light gray, R ~ 20%, isotropic. Internal reflexes are rare reddish brown. VHN<sub>100</sub> = 596. Chemical composition (microprobe, wt%): Nb<sub>2</sub>O<sub>5</sub> 8.75–13.27, Ta<sub>2</sub>O<sub>5</sub> 0.63–1.59, WO<sub>3</sub> 0.95–1.97, TiO<sub>2</sub> 31.00–34.39, UO<sub>2</sub> 31.59–41.41, ThO<sub>2</sub> 2.45–5.20, Y<sub>2</sub>O<sub>3</sub> 5.95–9.85, Ce<sub>2</sub>O<sub>3</sub> 0.00–0.77, Nd<sub>2</sub>O<sub>3</sub> 0.00–0.38, Dy<sub>2</sub>O<sub>3</sub> 0.99–2.12, Ho<sub>2</sub>O<sub>3</sub> 0.00–0.96, Er<sub>2</sub>O<sub>3</sub> 0.84–1.87, Yb<sub>2</sub>O<sub>3</sub> 0.73–1.97, FeO 0.00–0.32, MnO 0.00–0.32, CaO 0.00–0.69, total 98.16–101.32. Average formula is (calculated on the basis of О = 6 apfu): (U<sub>0.54</sub>Y<sub>0.26</sub>Th<sub>0.05</sub>Dy<sub>0.03</sub>Er<sub>0.03</sub>Yb<sub>0.03</sub>Ho<sub>0.01</sub>Nd<sub>0.01</sub>Ca<sub>0.02</sub>Fe<sub>0.01</sub>Mn<sub>0.01</sub>)<sub>1.00</sub> (Ti<sub>1.63</sub>Nb<sub>0.34</sub>Ta<sub>0.02</sub> W<sub>0.02</sub>)<sub>2.01</sub>O<sub>6</sub>. It is metamict. After the ignition (1000 °C, Ar flow), it gives X-ray diffraction pattern of the uranopolycrase with a minor amount of brannerite. Zones along the microcracks are replaced, presumably with the X-ray amorphous phase of the pyrochlore type (after ignition cell dimension is: <i>a</i> = 10.299 (4) Å). Minerals of the polycrase series are the main concentrators of uranium in the Museum pegmatite. This is the first find of uranopolycrase in Tajikistan.
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| Файл =
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<p>Keywords: miarolitic pegmatite, South West Pamir, Museum pegmatite, Tajikistan, Kukhilal, uranopolycrase, polycrase-(Y), brannerite, metamictic.<br>
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}} {{NDM_article
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| Приложения =
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| Авторы = Ivanova Yu.A., Vlasov E.A.
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}}{{NDM_article
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| Название =  Rutile potassium feldspar-quartz veins of the upper river. Double, Western Chukotka, pp. 40-42
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| Авторы = Ivanova Yu.A., Vlasov E.A. 
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| Аннотация = Numerous veins and veins of calcite-adular-quartz composition with titanite, epidote, allanite- (Ce), datolith, prenite, chlorite, light mica, sulfides (pyrite, chalcopyrite and molybdenite), wolframite and rheelite are found in volcanics of the Tytylveem Formation. Impurities W6 +, Nb5 +, Fe3 +, V3 + and Cr3 + were determined in rutile. A direct correlation was established between the concentration of W6 + and Nb5 + in rutile with the sum of trivalent cations; the following isomorphic substitution schemes were proposed: 3Ti4 + = W6 + + 2Me3 +, 2Ti4 + = Nb5 + + Me3 +. In a number of rutile analyzes, an excess of trivalent cations not compensated by highly valent impurities is noted. The excess of trivalent cations is explained by the appearance of anionic vacancies in the structure according to the 2Ti4 + + O2– = 2Me3 + + [vac] scheme. This assumption is confirmed by oxygen deficiency in a number of rutile crystal chemical formulas.<br>
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| Название = Rutile K-feldspar-quartz veins of headwaters of the river Dvoynaya, Western Chukotka
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'''Key words:''' Western Chukotka, rutile, impurities, isomorphism, isomorphic substitution schemes.
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| Файл = Ivanova2018-2_rus.pdf
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| Файл =
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| Аннотация = Numerous veins of calcite-adularia-quartz composition with titanite, epidote, allanite-(Ce), datolite, prehnite, chlorite, light mica, sulfides (pyrite, chalcopyrite, and molybdenite), wolframite, scheelite, and rutile are found in the volcanites of the Tytylveem formation. Impurities W<sup>6+</sup>, Nb<sup>5+</sup>, Fe<sup>3+</sup>, V<sup>3+</sup>, and Cr<sup>3+</sup> were determined in rutile. A direct correlation was established between the concentration of W<sup>6+</sup> and Nb<sup>5+</sup> in rutile and the sum of trivalent cations, and the following isomorphic substitution schemes were proposed: 3Ti<sup>4+</sup> = W<sup>6+</sup> + 2Me<sup>3+</sup>; 2Ti<sup>4+</sup> = Nb<sup>5+</sup> + Me<sup>3+</sup>. In a number of analyzes of rutile, an excess of trivalent cations not compensated for by high-valence impurities is noted. The excess of trivalent cations is explained by the appearance of anionic vacancies in the structure according to the scheme 2Ti<sup>4+</sup> + O<sup>2-</sup> = 2Me<sup>3+</sup>+ [vac]. This assumption is confirmed by the oxygen deficiency in a number of crystal chemical formulas of rutile.
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}} {{NDM_article
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<p>Keywords: Western Chukotka, rutile, impurities, isomorphism, isomorphic substitution schemes.<br>
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| Авторы = Schipalkina N.V., Kononov O.V., Pekov I.V., Koshlyakova N.N., Britvin S.N.
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| Приложения =
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| Название = Wollastonite and Ferrobustamite of the Tyrnyauz Ore Field (North Caucasus): Chemical Composition, Relations, and Mineralogical-Technological Aspect, pp. 43-50
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}}{{NDM_article
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| Аннотация = Samples previously identified as wollastonite, ferrorolastonite, Mn-wollastonite, paravollastonite, bustamite and ferrobustamite from different parts of the Tyrnyauz ore field (Kabardino-Balkaria, Northern Caucasus, Russia) were studied by electron probe microanalysis, infrared spectroscopy, and powder and single crystal radiography. It was established that two rock-forming minerals are present in this deposit — wollastonite Ca3Si3O9 and ferrobustamite Ca2Ca2FeCa [Si3O9] 2, macroscopically indistinguishable from each other, occurring in identical mineral associations and capable of forming close intergrowths with each other, in which the boundaries between these minerals are always sharp. Wollastonite and ferrobustamite are easily identified by infrared spectroscopy, and also differ in chemical composition. Thus, the contents of FeO and MnO in wollastonite and ferrobustamite of the Tyrnyauz deposit vary, respectively, in the following ranges (wt.%): 0.0–1.2 and 0.1–1.1 (in the total from 0.1 to 2.3) in wollastonite, 7.4–10.2 and 1.3–3.7 (in the sum from 10.2 to 12.8) in ferrobustamite. There are no solid solutions between wollastonite and ferrobustamite. The prevalence of ferrobustamite in the Tyrnyauz skarns is a serious problem that complicates the exploration and production of wollastonite, and makes it necessary to develop a special methodology that distinguishes conditioned wollastonite raw materials from mineral associations containing ferrobustamite and unsuitable for practical use.<br>
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| Авторы = Pavlova T.M.
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'''Key words:''' wollastonite, ferrobustamite, VOXIL, pyroxenoid, infrared spectroscopy, technological mineralogy, Tyrnyauz.
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| Название = Academician A.E.Fersman scientific readings. History. Chronology.  
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| Файл =
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| Файл = Pavlova2018-2_rus.pdf
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}} {{NDM_article
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| Аннотация = The chronology of the scientific readings of Academician Fersman is given. The authors of the scientific reports and the topics are presented, as well as the time and place of the readings.
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| Авторы = Ivanova D.A., Scherbakov V.D., Plechov P.Yu., Nekrylov N.A., Davydova V.O., Turova M.A., Stepanov O.V.
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The article contains 1 table, references (5 titles).
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| Название = Cristobalite in the extrusive rocks of Bezymyanny volcano, pp. 51-59
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<p>Keywords: scientific readings, A.E. Fersman, Mineralogical Museum of the Russian Academy of Sciences.<br>
−
| Аннотация = The paper presents the first data of a systematic study of variations in the composition and morphology of cristobalite in the extrusive rocks of the Bezymyannyi volcano (Kamchatka). Andesites and dacites of all seven investigated extrusive domes contain cristobalite, the content of which reaches 6 vol. %, which allows us to consider this mineral as a rock-forming. Cristobalite is found in 4 different morphological types: 1) isometric grains with a characteristic fracture of "fish scales" surrounded by pores; 2) lamellar grains forming clusters; 3) in the form of "peas" immersed in glass; 4) cirrus discharge of cristobalite. Clear dependencies between the morphological type, composition of cristobalite and the chemistry of extrusive rocks could not be identified. The content of impurity components in cristobalite (mainly Al and Na) reaches 10 wt.%. The main reaction of their isomorphic incorporation into the structure is Si4 + → Al3 ++ (Na +, K +), which may be due to the existence of a solid solution of cristobalite with an isostructural cargniite minal. Ti (up to 0.27 wt.% TiO2), Fe (up to 0.43 wt.% FeO) and Ca (up to 0.15 wt.% CaO) are found in cristobalite. Comparison with other finds showed that the cristobalite of the extrusive rocks of Bezymyanny volcano has the widest variation in composition from all those described earlier.<br>
+
| Приложения =
−
'''Key words:''' cristobalite, morphological and compositional variations, extrusive rocks, Bezymyanny volcano, Kamchatka.
+
}}{{NDM_article
−
| Файл =
+
| Авторы = Shchipalkina N.V., Kononov O.V., Pekov I.V., Koshlyakova N.N., Britvin S.N.
−
}} {{NDM_article
+
| Название = Wollastonite and ferrobustite of the Tyrnyauz ore field (North Caucasus): chemical composition, relations and mineralogical-technological aspect
−
| Авторы = Pavlova T.M.  
+
| Файл = Schipalkina2018-2_rus.pdf
−
| Название = Scientific readings named after academician A.E. Fersman. Story. Chronology., Pp. 60-68
+
| Аннотация = Samples previously identified as wollastonite, "ferrowollastonite", "Mn-wollastonite", parawolastonite, bustamite, and ferrobustite from different parts of the Tyrnyauz ore field (Kabardino-Balkaria, Northern Caucasus, Russia) were studied by electron probe microanalysis, infrared spectroscopy, powder and single-crystal radiography. It was found that two rock-forming minerals are presented at this site: wollastonite Ca<sub>3</sub>Si<sub>3</sub>O<sub>9</sub> and ferrobustite Ca<sub>2</sub>Ca<sub>2</sub>FeCa[Si<sub>3</sub>O<sub>9</sub>]<sub>2</sub>, which are macroscopically indistinguishable from each other and can be found in the same mineral assemblages and capable of forming close intergrowths with each other, in which the boundaries between these minerals are always sharp. Wollastonite and ferrobustite can be easily identified by the method of infrared spectroscopy, and also differ in chemical composition. Thus, the FeO and MnO contents in wollastonite and ferrobustamite of the Tyrnyauz field vary in the following limits (wt.%): 0.0-1.2 and 0.1-1.1 (in total - from 0.1 to 2.3) in wollastonite, 7.4 - 10.2 and 1.3 - 3.7 (in the total - from 10.2 to 12.8) in ferrobustamite. Solid solutions between wollastonite and ferrobustamite were not fixed. The prevalence in the skarns of Tyrnyauz ferrobustamite seems to be a serious problem hampering the exploration and production of wollastonite, and makes it necessary to develop a special technique that makes it possible to distinguish conditioned wollastonite raw materials from mineral associations containing ferrobustite and unfit for practical use.
−
| Аннотация = The chronology of scientific readings named after academician A.E. Fersman. Authors of scientific reports and topics of the latter are presented, as well as the time and place of the readings. Article 1 has a table, a list of references from 5 titles.<br>
+
<p>Keywords: wollastonite, ferrobustite, wollastonite concentrate "VOKSIL", pyroxenoid, infrared spectroscopy, technological mineralogy, Tyrnyauz.<br>
−
'''Key words:''' scientific readings, A.E. Fersman, Mineralogical Museum of the Russian Academy of Sciences.
+
| Приложения =
 +
}}{{NDM_article
 +
| Авторы = Ivanova D.A., Shcherbakov V.D., Plechov P.Yu., Nekrylov N.A., Davydova V.O., Turova M.A., Stepanov O.V.
 +
| Название = Cristobalite in extrusive rocks of Bezymianny volcano
 +
| Файл = IvanovaD2018-2_eng.pdf
 +
| Аннотация = We present the first data on the systematic study of compositional and morphological variability of cristobalite in extrusive rocks of Bezymianny volcano (Kamchatka). Andesites and dacites of all seven studied extrusive domes contain cristobalite, which content reaches up to 6 vol.%, and thus may be considered as rock-forming mineral. We distinguish 4 different morphological types of cristobalite – 1) isometric grains surrounded by pores with the characteristic fish-scale cracking; 2) the “prismatic” cristobalite grains in clusters; 3) “pea”-type grains in the matrix glass; 4) “feathery”-type crystals. There were not revealed any clear dependencies between the morphological type of cristobalite, its composition and the composition of host extrusive rocks. Content of minor elements in cristobalite (mainly Al and Na) is up 10 wt.% on an oxide basis. The main mechanism of their isomorphic substitution is Si4+→Al3++(Na+, K+), which can reflect the existence of a solid solution of cristobalite with isostructural to it carnegieite end-member. The entry of Ti (up to 0.27 wt.% of TiO2), Fe (up to 0.43 wt.% of FeO) and Ca (up to 0.15 wt.% of CaO) into the cristobalite structure is described. Cristobalite from extrusive rocks of Bezymianny volcano has the widest range of composition in comparison with all previously published analyses of this mineral.
 +
<p>Keywords: cristobalite, morphological and compositional variability, extrusive rocks, Bezymianny volcano, Kamchatka.<br>
 +
| Приложения =
 
}}
 
}}
  
 
=== '''Issue 3''' ===  
 
=== '''Issue 3''' ===  
 
{{NDM_article
 
{{NDM_article
−
| Авторы = Kasatkin A.V., Levitsky V.V., Nestola F.  
+
| Авторы = Kasatkin A.V., Levitskiy V.V., Nestola F.  
−
| Название = Hypergenic minerals of the Maly Mukulan deposit (Tyrnyauz ore field, Northern Caucasus), pp. 70 - 76
+
| Название = Supergene minerals of Malyi Mukulan deposit (Tyrnyauz ore field, Northern Caucasus)
−
| Аннотация = An interesting hypergenic sulfate-arsenate mineralization was discovered by us at the Sn-Bi deposit Maly Mukulan, Tyrnyauz ore field, Kabardino-Balkaria, and the North Caucasus. Sulfates - biancite, hexahydrite, gypsum, pickeringite, rocenite, copper siderite, chalcanthite and epsomite - and arsenates - erythrin minerals - kettigite and pharmacosiderite, were also established by electron probe microanalysis and single-crystal and powder x-ray diffraction.<br>
+
| Аннотация = An interesting supergene sulfate-arsenate mineralization was discovered by us at the Malyi Mukulan Sn-Bi deposit, Tyrnyauz ore field, Kabardino-Balkaria, Northern Caucasus. A group of sulfates - bianchite, hexahydrite, gypsum, pickeringite, rozenite, cuprian siderotil, chalcanthite and epsomite, as well as arsenates of erythrite-kottigite series and pharmacosiderite were established and studied by EMPA, SXRD and PXRD.
−
'''Key words:''' hypergene minerals, sulfates, arsenates, cattigite, Maly Mukulan deposit, Tyrnyauz, Kabardino-Balkaria.
+
<p>Keywords: supergene minerals, sulfates, arsenates, kottigite, Malyi Mukulan deposit, Tyrnyauz, Kabardino-Balkaria.<br>
−
| Файл =
+
| Файл = Kasatkin2018-3_rus.pdf
−
}} {{NDM_article
+
| Приложения =  
−
| Авторы = Gorelikova N.V., Portnov A.M., Taskaev V.I., Rassulov V.A., Chizhova I.A., Karimova O.V., Balashov F.V., Boeva ​​N.M.
+
}}{{NDM_article
−
| Название = Vanadium-containing Dravite from East Uzbekistan, pp. 78 - 85
+
| Авторы = Gorelikova N.V., Portnov A.M., Taskaev V.I., Rassulov V.A., Chizhova I.A., Karimova O.V., Balashov F.V., Boyeva N.M.  
−
| Аннотация = Vanadium grass-green dravite was found in thin (up to 10 cm) quartz veins crossing black siliceous schists of the late Proterozoic enriched with uranium and vanadium (up to 50 ppm). V2O3 content - up to 5.34% with low iron content and high magnesium. In all likelihood, vanadium occupies mainly the Z position in the mineral structure. Spectra of diffuse reflection in the range 350–2500 nm and luminescence upon excitation by UV radiation of an N laser were obtained. The appearance of vanadium as a chromophore and phosphor in metamorphic rocks is interpreted as an indicator of ancient oceanic structures on the continents.<br>
+
| Название = Vanadium dravite from the South East Uzbekistan
−
'''Keywords:''' vanadium dravite, isovalent isomorphism, photoluminescence, UV-Vis-NIR spectroscopy, diffuse reflection, black schists, proterozoic, indicator of oceanic structures, Auminzatau.
+
| Аннотация = V-bearing magnesian tourmaline relate to dravite from South East Uzbekistan has been studied. This mineral is acicular, the colour is grassy. It is found out at quartz veins with the width up to 10 cm cutting Protorezoic black siliceous schists. Protorozoic schists have a high relation of К/Rb (800) that is typical for tholeitic basalts of oceanic type with a high content of Ti and V. The schists are also enriched in V and U (up to 50 ppm). V<sub>2</sub>O<sub>3</sub> value in tourmaline varies and come to 3%. The negative correlation between V and Al has been established with methods correlation and R-factor analyses that indicates on the substitution Аl<sup>3+</sup>  by  V<sup>3+</sup> at the structure of tourmaline. The studied V-bearing tourmalines are characterized by a higher magnesiality (dravite variety), a low content of Fe<sup>2+</sup> , Fe<sup>3+</sup>, Ti<sup>4+</sup> and also of Аl<sup>3+</sup>, Са<sup>2+</sup>. Evidently, quartz-tourmaline veins are connected with the Hercinian granitoid magmatism attending numerous Au-Ag deposits of the South East Uzbekistan. Appearance of V in the quality a chromophor in metamorphic rocks is an indicator of old oceanic structures at the continents.
 +
<p>Keywords: Vanadium dravite, homovalent substitutions, photoluminescence, UV-Vis-NIR-spectroscopy, diffuse reflection, black chists, Protorozoic, indicator of oceanic structures, Auminzatau.<br>
 +
| Файл = Gorelikova2018-3_rus.pdf
 +
| Приложения =
 
}}
 
}}
  
 
=== '''Issue 4''' ===  
 
=== '''Issue 4''' ===  
 
{{NDM_article
 
{{NDM_article
−
| Авторы = Shiryaev A.A., Titkov S.V.  
+
| Авторы = Shiryaev A.A., Titkov S.V.
−
| Название = Spatial distribution of “amber–” (amber) defects in diamond: IR mapping results, pp. 87–90
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| Название = Spatial distribution of “Amber” defects in diamond: results of IR mapping
−
| Аннотация = The method of infrared microspectroscopy was used to study the spatial distribution of point defects in plates cut from natural diamonds. It is shown that the spatial distribution of the so-called “amber” defects is not directly related to the distribution of nitrogen A centers; rather, anticorrelation between them is observed. Based on the data obtained, it can be assumed that the formation of “amber” defects, although probably related to deformation processes, requires a relatively rare combination of growth point defects.<br>
+
| Аннотация = Infra-red microspectroscopy was employed for investigation of spatial distribution of point defects in plates cut
−
'''Key words:''' diamond, infrared spectroscopy, “amber” defects.
+
from natural diamonds. It is shown that distribution of “amber” defects does not correlate with that of the Adefects; moreover, they appear anticorrelated. Available data suggest that although formation of the “amber”
−
| Файл =
+
defects is related to deformation processes, it also requires presence of exotic set of point defects.
−
}} {{NDM_article
+
<p>Keywords: Diamond, infra-red spectroscopy, “amber” defects.<br>
−
| Авторы = Pautov L.A., Mirakov M.A., Shodibekov M.A., Fayziev A.R., Khvorov P.V., Makhmadsharif S.
+
| Файл = Shiriaev2018-4_eng.pdf
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| Название = Finding of tungstenite-2H in the magnesian-skarn deposit of noble Kuhi-Lal spinel ( Southwestern Pamir, Tajikistan), pp. 91 - 101
+
| Приложения =  
−
| Аннотация = Tungstenite-2H was discovered at a noble spinel deposit in the Kukhi-Lal magnesian skarns on the western slope of the Ishkashim ridge, Southwest Pamir, Tajikistan. It forms aggregates of lamellar grains from 1.5 to 8 mm in size in essentially white forsterite rock with chrysotile, calcite, dolomite, clinochlor, apatite, brucite, talc, zircon, monazite- (Ce), barite, pyrrhotite, pyrite, galena, sphalerite and chalcope . The color of tungstenite is silver gray, similar to the color of molybdenite. Microhardness VHN 28 (range 25–29). Reflection spectra are given. Reflectivity moderate, higher in growth zones enriched with Mo. 6 electron probe analyzes are given. The limits of the content of components (wt.%): W - 73.01–68.00; Mo - 0.58–4.71; S - 26.21–27.45. Amount 99.80–100.16. The empirical formula (calculation for the sum of all atoms = 3) (W0.98–0.87Mo0.01–0.12) S2.01. An x-ray powder diffraction pattern is shown. Parameters of the hexagonal unit cell: a = 3.161 (1) Å, c = 12.343 (3) Å. The crystallization of tungstenite took place under sharply reducing conditions with high S2– activity.<br>
+
}}{{NDM_article
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'''Key words:''' tungstenite, Kuhi-Lal spinel deposit, Pamir, magnesian skarn.
+
| Авторы = Pautov L.A., Mirakov M.A., Shodibekov M.A., Fayziev A.R., Khvorov P.V., Makhmadsharif S.  
−
| Файл =
+
| Название = A find of tungstenite-2H at the Kukhilal noble spinel magnesian-scarn deposit (South West Pamir, Tajikistan)
−
}} {{NDM_article
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| Аннотация = Tungstenite-2H was found in magnesian scarns at the Kukhilal spinel deposit (a western slope of the Ishkashim Ridge, South West Pamir, Tajikistan). It forms aggregations of tabular crystals from 1.5 to 8 mm in size in a white forsterite rock with chrysotile, calcite, dolomite, clinochlore, apatite, brucite, talc, zircon, monazite-(Ce), barite, pyrrhotite, pyrite, galena, sphalerite and chalcopyrite. Tungstenite-2H is silver white, similar molybdenite. VHN 28 (ranges 25–29). A reflectance spectra are shown. Reflectance is moderate, it is higher in growth zones enriched with Mo. Microprobe analysis (total 6) (wt%): W 73.01–68.00; Mo 0.58–4.71; S 26.21–27.45, total 99.80–100.16. Empirical formula (calculated on the basis of 3 atoms) (W<sub>0.98–0.87</sub>Mo<sub>0.01–0.12</sub>)S<sub>2.01</sub>. X-ray powder data are given. The hexagonal cell parameters are: <i>a</i> = 3.161(1), <i>c</i> = 12.343(3) Å. Tungstenite-2H crystallized under strongly reducing conditions with high S<sup>2-</sup> activity.  
 +
<p>Keywords: tungstenite-2H, Kukhilal spinel deposit, South West Pamir, Tajikistan, magnesian scarns.<br>
 +
| Файл = Pautov2018-4_rus.pdf
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| Приложения =  
 +
}}{{NDM_article
 
| Авторы = Karpenko V.Yu., Pautov L.A., Agakhanov A.A., Siidra O.I.
 
| Авторы = Karpenko V.Yu., Pautov L.A., Agakhanov A.A., Siidra O.I.
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| Название = Cadmium mineralization in the alkaline massif Darai-Piyoz (Tajikistan), pp. 102 - 109
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| Название = On the cadmium mineralization in the Darai-Pioz alkaline massif
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| Аннотация = For the first time in the alkaline massif Darai-Piyoz (Tajikistan), its own cadmium minerals, CdS greenokite (hex. S.) And otavit CdCO3, were found, as well as additional data on the Cd content in sphalerite (from 0.12 to 3.65 wt.%) Were obtained. Greenokite (from 3.3–3.8 Zn, wt.%) Is found in the form of grains up to 0.4 mm in nests of galena from aegirine-quartz-feldspar rock in association with polyilitionite, cesium-coupletskite, amphibole of the ribecite-arfvedsonite series, Turkestanite, and Anglesite. The parameters of the hexagonal cell are a = 4.171 (2), c = 6.772 (1) Å, V = 102.1 (1) Å3. Otavit was found at the contact of a galena vein in granular quartz in the form of loose aggregates (~ 0.5 x 0.5 mm), along which Cd-containing cerussite develops (CdO 2.3 wt.%). The composition of otavitis is heterogeneous (mol.%): 77–87 CdCO3, 4–19 CaCO3, 4–9 PbCO3, 1–5 ZnCO3. For the diagnosis of minerals, the X-ray method (photomethod), microprobe analysis were used. For greenokite, the reflection spectrum is given. Possible mechanisms for the separation of Zn and Cd are discussed. This is probably the first case of discoveries of proper cadmium minerals in alkaline rocks.<br>
+
| Аннотация = Greenockite, CdS (hex.), and otavite, CdCO<sub>3</sub>, have been found for the first time in the Darai-Pioz alkaline massif (Tadzhikistan). Greenockite (with Zn, ranges 3.3 – 3.8 wt. %) forms grains to 0.4 mm in galena aggregations from an aegirine-quartz-feldspar assemblage, in association with polylithionite, cesium-kupletskite, riebeckite-arfvedsonite series amphibole, turkestanite, and anglesite. Hexagonal cell dimensions are as follows: a = 4.171(2), c = 6.772(1) Å. Otavite occurs on a galena micro-vein contact with granulated quartz, as fine aggregations (~0.5 x 0.5 mm), on which Cd- bearing cerussite has developed (CdO 2.3 wt.%). The chemical  composition of otavite is variable  (mol. %): 77 – 87  CdCO<sub>3</sub>, 4 – 19 CaCO<sub>3</sub>, 4 – 9  PbCO<sub>3</sub>, 1 – 5  ZnCO<sub>3</sub>. Cd, and some trace elements were analysed in sphalerite from this massif; Cd ranges there from  0.12 to 3.65 wt. %. Minerals were investigated by microprobe with EDS and WDS, X-ray, and optical microscopy. A reflective spectrum is shown for greenockite. Possible methods of Zn and Cd differentiation are discussed. This may be the first identification of these minerals in alkaline massifs.<br>
−
'''Key words:''' cadmium, greenokite, otavit, cadmium-containing cerussite, galena, cadmium-containing sphalerite, Darai-Piez alkaline massif.
+
There are 5  tables, 7 drawings, and  56 references in the paper.<br>
−
| Файл =
+
<p>Keywords: cadmium, greenockite, otavite, cerussite cadmium-bearing, galena, sphalerite cadmium-bearing, Darai-Pioz alkaline massif.<br>
 +
| Файл = Karpenko2018-4_rus.pdf
 +
| Приложения =  
 
}}
 
}}
 +
 +
<br>
 +
[[Journal/NDM51_2018|Russian version (V. 52)]]

Текущая версия на 13:19, 25 декабря 2020

New Data on Minerals. 2018. Volume 52. 160 pages, 166 photos, drawings, and schemes.

Summary

The journal contains a lot of new scientific information, including descriptions of new finds of minerals. So, in the southwestern Pamirs, the first rare herzenbergite and uranopolicraz in the myarolite granite pegmatites, and tungstenite-2H in magnesian skarns (Kuhilal), were discovered in Tajikistan for the first time in this type of deposit. For the first time in the alkaline massif Darai-Piez, cadmium minerals - greenokite and otavit - were found. This is probably the first discovery of cadmium minerals in alkaline rocks. New data on the content of Cd in sphalerite was obtained. Hypergenic copper minerals from Chukotka are described, among which spioncopite is the first in Russia. The features of rutile of potassium feldspar-quartz veins of volcanic rocks (Zap. Chukotka) are studied.
The results of an audit of titanium garnets from the collection of the Mineralogical Museum are presented in connection with changes in the nomenclature of this group of minerals. A brief report was made about phosphorus-containing olivine in the lavas of the last Tolbachinsky eruption, olivine of magmatic origin with a record phosphorus content was recorded. The first data of a systematic study of variations in the composition and morphology of cristobalite in the extrusive rocks of the Bezymyanny volcano (Kamchatka) are presented.
At the Tyrnyauz ore field (North Caucasus), the presence of macroscopically indistinguishable rock-forming minerals — wollastonite and ferrobustamite — was established, which requires the development of a methodology to determine the suitability of raw materials. An interesting hypergenic sulfate-arsenate mineralization was discovered and studied there (Sn-Bi-field Small Mukulan). In quartz veins of black siliceous schists, Auminzatau, V. Uzbekistan, vanadium grass-green poisonous was found and described. The results of IR microspectroscopy of the spatial distribution of “amber” defects in diamonds from placers of the northeast of the Siberian Platform are presented. The historical background of two samples of the Museum is revealed: porpecite and print of the seal made by Faberge. The chronology of scientific readings named after academician A.E. Fersman, authors and titles of scientific reports are presented, the time and place of the readings. One of the articles is dedicated to the memory of E.I. Semenov, a major specialist in the mineralogy of alkaline rocks and lithophilic rare metals, an employee of the museum.
This journal is of interest for mineralogists, geochemists, geologists, staff of natural history museums, collectors, and rocks aficionados.

Editorial Board

Editor in Chief: P.Yu. Plechov - Doctor of Geology and Mineralogy, Professor
Executive Editor: E.N. Matvienko - PhD in Geology and Mineralogy
Members of Editorial Board:
I.V. Pekov - Corresponding Member of the Russian Academy of Sciences, Doctor of Geology and Mineralogy
V.K. Garanin - Doctor of Geology and Mineralogy, Professor
M.I. Novgorodova - Doctor of Geology and Mineralogy, Professor
B.E. Borutsky - Doctor of Geology and Mineralogy
B.E Spiridonov - Doctor of Geology and Mineralogy
S.N. Nenasheva - PhD in Geology and Mineralogy
M.E. Generalov - PhD in Geology and Mineralogy
Yu.D. Gricenko - PhD in Geology and Mineralogy
L.A. Pautov - Senior Researcher

Editor, Design, Layout
E.V. Kronrod - PhD in Chemistry

Сontent

Issue 1 Revision articles and brief reports on the study of museum samples

Pdf icon.pngPlechov P.Yu. (Editorial) Changes in the editorial policy of the journal "New data on minerals", p. 1-2

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Pdf icon.pngGritsenko Yu.D. Titanium garnets collection of the A.E.Fersman Mineralogical Museum of the Russian Academy of Sciences, p. 3-5

Titanium garnets are widespread in many skarns and alkaline massifs. It was believed that shorlomite is much more widespread than morimotoite in the collection of the Fersman Mineralogical Museum RAS. We studied the collection of titanium and titanium-containing garnets of the Fersman Mineralogical Museum, which includes 22 samples from 19 different deposits. We did not find a single schorlomite among the studied samples. The ratio of morimotoite and shorlomite minals varies from 6.9 to 0.8 in Ti-andradite, and from 1.5 to 1.1 in titanium garnets. According to the nomenclature of the garnet supergroup, most analyzes of schorlomite in the literature correspond to the mineral species morimotoite. hus, morimotoite is more widespread than schorlomite, the reliable finds of which are much less than previously thought.

Keywords: titanium garnets, shorlomite, morimotoite, melanite, Fersman Mineralogical Museum of the Russian Academy of Sciences.
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Электронные приложения к статье : Gritsenko2018-1_supp_rus.xlsx



Pdf icon.pngPautov L.A., Mirakov M.A., Shodibekov M.A., Khvorov P.V. Finding of herzenbergite in the Vez-Dara granite miarolitic pegmatite at South West Pamir (Tajikistan), p. 6-14

Herzenbergite, SnS, was found in the near-miarolic complex of the Vez-Dara granite oligoclase-microcline pegmatite (vein #86) (South West Pamir, Tajikistan) in medium-grained K-feldspar-quartz rock. Minor minerals are biotite, schörl (graphics with quartz), spessartite-almandine garnet, albite. Herzenbergite occurs as irregular shape aggregates and veinlets up to 5 mm long, folded by lamellar grains 40–80 x 10–25 µm in size, partially replaced by “varlamovite”, in intergrowth with goethite, zircon, churchite- (Y), Sc-containing Mn-tantaloniobate. Herzenbergite is steel gray (in a fresh fracture), dark gray (on a weathered surface). In the reflected light is white; Rg = 49.9, Rp = 43.5% (560 nm). Bireflectance is weak (in air), and is clear (in immersion). Anisotropy with color effects in air is strong, in immersion is very strong. VHN 79–86 (at load 20 g). X-ray powder data are given. Unit cell parameters are a = 4.331(2), b = 11.195(3), c = 3.983(2) Ǻ. Chemical composition (microprobe, wt%): Sn 77.86–79.01; S 20.96–21.45, Pb, Cu, Sb, Fe are below the detection limit. The formula is Sn0.99–1.02S1.00. A direct crystallization under reducing conditions from an acidic solution enriched with Sn+2 at the low-temperature hydrothermal stage of pegmatite formation is assumed. Partial substitution with "varlamovite" aggregate can be caused both by the instability of SnS with an increase in the pH of solutions at the hypogenic stage, and as the result of supergene oxidation. It is the first find of herzenbergite in Tajikistan.

Keywords: herzenbergite, miarolitic pegmatite, South West Pamir, Tajikistan, Vez-Dara, "varlamovite".
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Pdf icon.pngShcherbakov V.D., Plechov P.Yu. P- bearing olivine from lava flow of 2012-2013 Tolbachik volcano eruption, p. 15-17

160 high-precision microprobe analyzes of olivine from lava and tephra of volcanic Tolbachik eruption are published in the paper. Hot-state lava and tephra were collected during the eruption. Phosphorus rich zones in olivine were formed during the skeletal growth in lava during flow on the surface.

Keywords: P-bearing olivine, high-precision microprobe analyses, Tolbachik, Kamchatka.
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Электронные приложения к статье : Sherbakov_Plechov2018-1_supp_eng.xlsx



Pdf icon.pngVlasov E.A., Nikolaev Yu.N., Apletalin A.V., Pustovalov V.Yu. Copper minerals from metamorphogenic veins of the headwaters of the river Ilirneivaem, Chukotka, p. 18-19

In the upper reaches of the Ilirneivey river, veins of epidote-calcite-prehnite composition with copper mineralization were found in altered andesites. The copper minerals are native copper, domeykite, chalcocite and spionkopite. The formation of veins is associated with the processes of low-grade metamorphism of the prehnite-pumpellyite facies, which captured the volcanites of the Tytylveem formation.

Keywords: Western Chukotka, native copper, low-grade metamorphism, prehnite-pumpellyite facies of metamorphism.
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Pdf icon.pngGeneralov M.E., Pautov L.A. Second Lieutenant Chernik Porpezite, p. 20-24

When studying the samples of porpezite transferred to the collection of the Mineralogical Museum by the G.P. Chernik in 1909, it was found that in addition to the proper porpezite (palladium gold of 600-700 probes), they contain native palladium and sulphide phases of Pd4S composition. It was also found out that placers, where platinum minerals were found at the end of the XIX century, are located not in Georgia, as indicated in the literature, but in Turkey, near the city of Artvin.

Keywords: porpezite, Fersman Mineralogical Museum of the RAS, G.P. Chernik, placers, Artvin.
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Pdf icon.pngGeneralov M.E. Faberge and Abraxas, p. 25-29

Impression on sealing wax of the seal made by Faberge Company tells about famous citizen of Russia and the United States, Boris Alexandrovich Bakhmetev, and about the connection of mysticism, philosophy, politics and art from ancient times to the early 20th century.

Keywords: seal, stonecurving, Faberge, Bakhmetev, history.
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Pdf icon.pngPekov I.V. In memoream of E.I.Semenov (1927-2017), p. 30-32

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Issue 2 Articles and short reports on the study of mineralogical objects

Pdf icon.pngPautov L.A., Shodibekov M.A., Mirakov M.A., Fayziev A.R., Khvorov P.V. Uranopolycrase (U,Y)(Ti,Nb)2O6 from the Museum miarolitic pegmatite in the area of ​​the Kukhilal deposit (South West Pamir, Tajikistan)

Uranopolycrase (U,Y)(Ti,Nb)2O6 was found in the Museum miarolitic quartz-microcline-oligoclase pegmatite in the contours of the Kukhilal noble spinel deposit (South West Pamir) in a block semi-transparent, milky quartz of the near-miarolitic complex. It forms tabular grains of rectangular cross-section, rarely crystals up to 0.6 x 4 mm. Sometimes it growth together with Nb-containing rutile (Nb2O5 5.68 wt%), which outwardly is indistinguishable from the associating polycrase-(Y). The color is black, fracture is concoidal, lustre is pitchy. Fragile. Streak is light brown. In the reflected light is light gray, R ~ 20%, isotropic. Internal reflexes are rare reddish brown. VHN100 = 596. Chemical composition (microprobe, wt%): Nb2O5 8.75–13.27, Ta2O5 0.63–1.59, WO3 0.95–1.97, TiO2 31.00–34.39, UO2 31.59–41.41, ThO2 2.45–5.20, Y2O3 5.95–9.85, Ce2O3 0.00–0.77, Nd2O3 0.00–0.38, Dy2O3 0.99–2.12, Ho2O3 0.00–0.96, Er2O3 0.84–1.87, Yb2O3 0.73–1.97, FeO 0.00–0.32, MnO 0.00–0.32, CaO 0.00–0.69, total 98.16–101.32. Average formula is (calculated on the basis of О = 6 apfu): (U0.54Y0.26Th0.05Dy0.03Er0.03Yb0.03Ho0.01Nd0.01Ca0.02Fe0.01Mn0.01)1.00 (Ti1.63Nb0.34Ta0.02 W0.02)2.01O6. It is metamict. After the ignition (1000 °C, Ar flow), it gives X-ray diffraction pattern of the uranopolycrase with a minor amount of brannerite. Zones along the microcracks are replaced, presumably with the X-ray amorphous phase of the pyrochlore type (after ignition cell dimension is: a = 10.299 (4) Å). Minerals of the polycrase series are the main concentrators of uranium in the Museum pegmatite. This is the first find of uranopolycrase in Tajikistan.

Keywords: miarolitic pegmatite, South West Pamir, Museum pegmatite, Tajikistan, Kukhilal, uranopolycrase, polycrase-(Y), brannerite, metamictic.
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Pdf icon.pngIvanova Yu.A., Vlasov E.A. Rutile K-feldspar-quartz veins of headwaters of the river Dvoynaya, Western Chukotka

Numerous veins of calcite-adularia-quartz composition with titanite, epidote, allanite-(Ce), datolite, prehnite, chlorite, light mica, sulfides (pyrite, chalcopyrite, and molybdenite), wolframite, scheelite, and rutile are found in the volcanites of the Tytylveem formation. Impurities W6+, Nb5+, Fe3+, V3+, and Cr3+ were determined in rutile. A direct correlation was established between the concentration of W6+ and Nb5+ in rutile and the sum of trivalent cations, and the following isomorphic substitution schemes were proposed: 3Ti4+ = W6+ + 2Me3+; 2Ti4+ = Nb5+ + Me3+. In a number of analyzes of rutile, an excess of trivalent cations not compensated for by high-valence impurities is noted. The excess of trivalent cations is explained by the appearance of anionic vacancies in the structure according to the scheme 2Ti4+ + O2- = 2Me3++ [vac]. This assumption is confirmed by the oxygen deficiency in a number of crystal chemical formulas of rutile.

Keywords: Western Chukotka, rutile, impurities, isomorphism, isomorphic substitution schemes.
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Pdf icon.pngPavlova T.M. Academician A.E.Fersman scientific readings. History. Chronology.

The chronology of the scientific readings of Academician Fersman is given. The authors of the scientific reports and the topics are presented, as well as the time and place of the readings. The article contains 1 table, references (5 titles).

Keywords: scientific readings, A.E. Fersman, Mineralogical Museum of the Russian Academy of Sciences.
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Pdf icon.pngShchipalkina N.V., Kononov O.V., Pekov I.V., Koshlyakova N.N., Britvin S.N. Wollastonite and ferrobustite of the Tyrnyauz ore field (North Caucasus): chemical composition, relations and mineralogical-technological aspect

Samples previously identified as wollastonite, "ferrowollastonite", "Mn-wollastonite", parawolastonite, bustamite, and ferrobustite from different parts of the Tyrnyauz ore field (Kabardino-Balkaria, Northern Caucasus, Russia) were studied by electron probe microanalysis, infrared spectroscopy, powder and single-crystal radiography. It was found that two rock-forming minerals are presented at this site: wollastonite Ca3Si3O9 and ferrobustite Ca2Ca2FeCa[Si3O9]2, which are macroscopically indistinguishable from each other and can be found in the same mineral assemblages and capable of forming close intergrowths with each other, in which the boundaries between these minerals are always sharp. Wollastonite and ferrobustite can be easily identified by the method of infrared spectroscopy, and also differ in chemical composition. Thus, the FeO and MnO contents in wollastonite and ferrobustamite of the Tyrnyauz field vary in the following limits (wt.%): 0.0-1.2 and 0.1-1.1 (in total - from 0.1 to 2.3) in wollastonite, 7.4 - 10.2 and 1.3 - 3.7 (in the total - from 10.2 to 12.8) in ferrobustamite. Solid solutions between wollastonite and ferrobustamite were not fixed. The prevalence in the skarns of Tyrnyauz ferrobustamite seems to be a serious problem hampering the exploration and production of wollastonite, and makes it necessary to develop a special technique that makes it possible to distinguish conditioned wollastonite raw materials from mineral associations containing ferrobustite and unfit for practical use.

Keywords: wollastonite, ferrobustite, wollastonite concentrate "VOKSIL", pyroxenoid, infrared spectroscopy, technological mineralogy, Tyrnyauz.
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Pdf icon.pngIvanova D.A., Shcherbakov V.D., Plechov P.Yu., Nekrylov N.A., Davydova V.O., Turova M.A., Stepanov O.V. Cristobalite in extrusive rocks of Bezymianny volcano

We present the first data on the systematic study of compositional and morphological variability of cristobalite in extrusive rocks of Bezymianny volcano (Kamchatka). Andesites and dacites of all seven studied extrusive domes contain cristobalite, which content reaches up to 6 vol.%, and thus may be considered as rock-forming mineral. We distinguish 4 different morphological types of cristobalite – 1) isometric grains surrounded by pores with the characteristic fish-scale cracking; 2) the “prismatic” cristobalite grains in clusters; 3) “pea”-type grains in the matrix glass; 4) “feathery”-type crystals. There were not revealed any clear dependencies between the morphological type of cristobalite, its composition and the composition of host extrusive rocks. Content of minor elements in cristobalite (mainly Al and Na) is up 10 wt.% on an oxide basis. The main mechanism of their isomorphic substitution is Si4+→Al3++(Na+, K+), which can reflect the existence of a solid solution of cristobalite with isostructural to it carnegieite end-member. The entry of Ti (up to 0.27 wt.% of TiO2), Fe (up to 0.43 wt.% of FeO) and Ca (up to 0.15 wt.% of CaO) into the cristobalite structure is described. Cristobalite from extrusive rocks of Bezymianny volcano has the widest range of composition in comparison with all previously published analyses of this mineral.

Keywords: cristobalite, morphological and compositional variability, extrusive rocks, Bezymianny volcano, Kamchatka.
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Issue 3

Pdf icon.pngKasatkin A.V., Levitskiy V.V., Nestola F. Supergene minerals of Malyi Mukulan deposit (Tyrnyauz ore field, Northern Caucasus)

An interesting supergene sulfate-arsenate mineralization was discovered by us at the Malyi Mukulan Sn-Bi deposit, Tyrnyauz ore field, Kabardino-Balkaria, Northern Caucasus. A group of sulfates - bianchite, hexahydrite, gypsum, pickeringite, rozenite, cuprian siderotil, chalcanthite and epsomite, as well as arsenates of erythrite-kottigite series and pharmacosiderite were established and studied by EMPA, SXRD and PXRD.

Keywords: supergene minerals, sulfates, arsenates, kottigite, Malyi Mukulan deposit, Tyrnyauz, Kabardino-Balkaria.
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Pdf icon.pngGorelikova N.V., Portnov A.M., Taskaev V.I., Rassulov V.A., Chizhova I.A., Karimova O.V., Balashov F.V., Boyeva N.M. Vanadium dravite from the South East Uzbekistan

V-bearing magnesian tourmaline relate to dravite from South East Uzbekistan has been studied. This mineral is acicular, the colour is grassy. It is found out at quartz veins with the width up to 10 cm cutting Protorezoic black siliceous schists. Protorozoic schists have a high relation of К/Rb (800) that is typical for tholeitic basalts of oceanic type with a high content of Ti and V. The schists are also enriched in V and U (up to 50 ppm). V2O3 value in tourmaline varies and come to 3%. The negative correlation between V and Al has been established with methods correlation and R-factor analyses that indicates on the substitution Аl3+ by V3+ at the structure of tourmaline. The studied V-bearing tourmalines are characterized by a higher magnesiality (dravite variety), a low content of Fe2+ , Fe3+, Ti4+ and also of Аl3+, Са2+. Evidently, quartz-tourmaline veins are connected with the Hercinian granitoid magmatism attending numerous Au-Ag deposits of the South East Uzbekistan. Appearance of V in the quality a chromophor in metamorphic rocks is an indicator of old oceanic structures at the continents.

Keywords: Vanadium dravite, homovalent substitutions, photoluminescence, UV-Vis-NIR-spectroscopy, diffuse reflection, black chists, Protorozoic, indicator of oceanic structures, Auminzatau.
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Issue 4

Pdf icon.pngShiryaev A.A., Titkov S.V. Spatial distribution of “Amber” defects in diamond: results of IR mapping

Infra-red microspectroscopy was employed for investigation of spatial distribution of point defects in plates cut from natural diamonds. It is shown that distribution of “amber” defects does not correlate with that of the Adefects; moreover, they appear anticorrelated. Available data suggest that although formation of the “amber” defects is related to deformation processes, it also requires presence of exotic set of point defects.

Keywords: Diamond, infra-red spectroscopy, “amber” defects.
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Pdf icon.pngPautov L.A., Mirakov M.A., Shodibekov M.A., Fayziev A.R., Khvorov P.V., Makhmadsharif S. A find of tungstenite-2H at the Kukhilal noble spinel magnesian-scarn deposit (South West Pamir, Tajikistan)

Tungstenite-2H was found in magnesian scarns at the Kukhilal spinel deposit (a western slope of the Ishkashim Ridge, South West Pamir, Tajikistan). It forms aggregations of tabular crystals from 1.5 to 8 mm in size in a white forsterite rock with chrysotile, calcite, dolomite, clinochlore, apatite, brucite, talc, zircon, monazite-(Ce), barite, pyrrhotite, pyrite, galena, sphalerite and chalcopyrite. Tungstenite-2H is silver white, similar molybdenite. VHN 28 (ranges 25–29). A reflectance spectra are shown. Reflectance is moderate, it is higher in growth zones enriched with Mo. Microprobe analysis (total 6) (wt%): W 73.01–68.00; Mo 0.58–4.71; S 26.21–27.45, total 99.80–100.16. Empirical formula (calculated on the basis of 3 atoms) (W0.98–0.87Mo0.01–0.12)S2.01. X-ray powder data are given. The hexagonal cell parameters are: a = 3.161(1), c = 12.343(3) Å. Tungstenite-2H crystallized under strongly reducing conditions with high S2- activity.

Keywords: tungstenite-2H, Kukhilal spinel deposit, South West Pamir, Tajikistan, magnesian scarns.
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Pdf icon.pngKarpenko V.Yu., Pautov L.A., Agakhanov A.A., Siidra O.I. On the cadmium mineralization in the Darai-Pioz alkaline massif

Greenockite, CdS (hex.), and otavite, CdCO3, have been found for the first time in the Darai-Pioz alkaline massif (Tadzhikistan). Greenockite (with Zn, ranges 3.3 – 3.8 wt. %) forms grains to 0.4 mm in galena aggregations from an aegirine-quartz-feldspar assemblage, in association with polylithionite, cesium-kupletskite, riebeckite-arfvedsonite series amphibole, turkestanite, and anglesite. Hexagonal cell dimensions are as follows: a = 4.171(2), c = 6.772(1) Å. Otavite occurs on a galena micro-vein contact with granulated quartz, as fine aggregations (~0.5 x 0.5 mm), on which Cd- bearing cerussite has developed (CdO 2.3 wt.%). The chemical composition of otavite is variable (mol. %): 77 – 87 CdCO3, 4 – 19 CaCO3, 4 – 9 PbCO3, 1 – 5 ZnCO3. Cd, and some trace elements were analysed in sphalerite from this massif; Cd ranges there from 0.12 to 3.65 wt. %. Minerals were investigated by microprobe with EDS and WDS, X-ray, and optical microscopy. A reflective spectrum is shown for greenockite. Possible methods of Zn and Cd differentiation are discussed. This may be the first identification of these minerals in alkaline massifs.
There are 5 tables, 7 drawings, and 56 references in the paper.

Keywords: cadmium, greenockite, otavite, cerussite cadmium-bearing, galena, sphalerite cadmium-bearing, Darai-Pioz alkaline massif.
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Russian version (V. 52)

Источник — «https://fmm.ru/index.php?title=Journal/2018_engl&oldid=485818»