Journal/2018 engl

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

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

Plechov P.Yu. Changes to the editorial policy of the journal "New Data on Minerals", pp. 1-2

Gritsenko Yu.D. Collection of Titanium Grenades of the Fersman Mineralogical Museum of the Russian Academy of Sciences, pp. 3-5

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.
Key words: titanium garnets, morimotoite, shorlomite, andradite, melanite, Fersman Mineralogical Museum of RAS.

Pautov L.A., Mirakov M.A., Schodibekov M.A. Find of herzenbergite in granite myarolite pegmatite of Vez-Dara in the South-Western Pamirs (Tajikistan), pp. 6-14

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.
Key words: herzenbergite, myarolic pegmatite, Southwestern Pamir, Tajikistan, Vez-Dara, “Varlamovite”.

Shcherbakov V.D., Plechov P.Yu. Phosphorus-containing olivine from lava flow 2012-2013 Tolbachik volcano, pp. 15-17

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.

Vlasov E.A., Nikolaev Yu.N., Apletalin A.V., Pustovalov V.Yu. Minerals of copper from metamorphic veins of the upper river. Ilirneveyem, Chukotka, pp. 18-19

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.
Key words: Western Chukotka, native copper, low-grade metamorphism, prenite-pumpellite facies of metamorphism.

Generalov M.E., Pautov L.A. Porpetsit Second Lieutenant Bilberry, p. 20-24

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.
Key words: porpecite, Mineralogical Museum named after A.E. Fersman RAS, G.P. Blueberries, placers, Artvin.

Generalov M.E. Faberge and Abraxas, pp. 25-29

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.
Key words: print of the press, Faberge firm, Fersman Mineralogical Museum of RAS, B.A. Bakhmetev.

Pekov I.V. In memory of E.I.Semenov (1927-2017), pp. 30-32

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

Pautov L.A., Shodibekov M.A., Mirakov M.A., Fayziev A.R., Khvorov P.V. Uranopolicraz (U, Y) (Ti, Nb) 2O6 from myarol pegmatite Museum in the area of ​​the Kuhilal deposit (Southwestern Pamir, Tajikistan), pp. 34-39

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.
Key words: myarolic pegmatite, Southwestern Pamir, Museum pegmatite, Tajikistan, Kuhilal, uranopolicraz, polycraz- (Y), brannerite, metamict

Ivanova Yu.A., Vlasov E.A. Rutile potassium feldspar-quartz veins of the upper river. Double, Western Chukotka, pp. 40-42

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.
Key words: Western Chukotka, rutile, impurities, isomorphism, isomorphic substitution schemes.

Schipalkina N.V., Kononov O.V., Pekov I.V., Koshlyakova N.N., Britvin S.N. Wollastonite and Ferrobustamite of the Tyrnyauz Ore Field (North Caucasus): Chemical Composition, Relations, and Mineralogical-Technological Aspect, pp. 43-50

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.
Key words: wollastonite, ferrobustamite, VOXIL, pyroxenoid, infrared spectroscopy, technological mineralogy, Tyrnyauz.

Ivanova D.A., Scherbakov V.D., Plechov P.Yu., Nekrylov N.A., Davydova V.O., Turova M.A., Stepanov O.V. Cristobalite in the extrusive rocks of Bezymyanny volcano, pp. 51-59

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.
Key words: cristobalite, morphological and compositional variations, extrusive rocks, Bezymyanny volcano, Kamchatka.

Pavlova T.M. Scientific readings named after academician A.E. Fersman. Story. Chronology., Pp. 60-68

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.
Key words: scientific readings, A.E. Fersman, Mineralogical Museum of the Russian Academy of Sciences.

Issue 3

Kasatkin A.V., Levitsky V.V., Nestola F. Hypergenic minerals of the Maly Mukulan deposit (Tyrnyauz ore field, Northern Caucasus), pp. 70 - 76

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.
Key words: hypergene minerals, sulfates, arsenates, cattigite, Maly Mukulan deposit, Tyrnyauz, Kabardino-Balkaria.

Gorelikova N.V., Portnov A.M., Taskaev V.I., Rassulov V.A., Chizhova I.A., Karimova O.V., Balashov F.V., Boeva ​​N.M. Vanadium-containing Dravite from East Uzbekistan, pp. 78 - 85

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.
Keywords: vanadium dravite, isovalent isomorphism, photoluminescence, UV-Vis-NIR spectroscopy, diffuse reflection, black schists, proterozoic, indicator of oceanic structures, Auminzatau.

Issue 4

Shiryaev A.A., Titkov S.V. Spatial distribution of “amber–” (amber) defects in diamond: IR mapping results, pp. 87–90

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.
Key words: diamond, infrared spectroscopy, “amber” defects.

Pautov L.A., Mirakov M.A., Shodibekov M.A., Fayziev A.R., Khvorov P.V., Makhmadsharif S. Finding of tungstenite-2H in the magnesian-skarn deposit of noble Kuhi-Lal spinel ( Southwestern Pamir, Tajikistan), pp. 91 - 101

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.
Key words: tungstenite, Kuhi-Lal spinel deposit, Pamir, magnesian skarn.

Karpenko V.Yu., Pautov L.A., Agakhanov A.A., Siidra O.I. Cadmium mineralization in the alkaline massif Darai-Piyoz (Tajikistan), pp. 102 - 109

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.
Key words: cadmium, greenokite, otavit, cadmium-containing cerussite, galena, cadmium-containing sphalerite, Darai-Piez alkaline massif.