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Journal/2018 engl
New Data on Minerals. 2018. Volume 52. 160 pages, 166 photos, drawings, and schemes.
Содержание
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
Plechov P.Yu. (Editorial)
Changes in the editorial policy of the journal "New data on minerals", p. 1-2
Gritsenko Yu.D.
Titanium garnets collection of the A.E.Fersman Mineralogical Museum of the Russian Academy of Sciences, p. 3-5
читать далее...
Электронные приложения к статье : Gritsenko2018-1_supp_rus.xlsx
Pautov L.A., Mirakov M.A., Shchodibekov M.A.
The discovery of herzenbergite in the granite miarol pegmatite of Vez-Dar in the South-Western Pamir (Tajikistan), p. 6-14
Shcherbakov 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. читать далее...
Электронные приложения к статье : Sherbakov_Plechov2018-1_supp_eng.xlsx
Vlasov 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
Generalov M.E., Pautov L.A.
Second Lieutenant Chernik Porpecite, p. 20-24
When studying the samples of papetzite transferred to the collection of the Mineralogical Museum by the G.P. Chernik in 1909, it was found that in addition to the proper pappelite (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. читать далее...
Generalov M.E.
Faberge and Abraxas, p. 25-29
Pekov I.V.
In memoream of E.I.Semenov (1927-2017), p. 30-32
Issue 2 Articles and short reports on the study of mineralogical objects
Pautov L.A., Shchodibekov M.A., Mirakov M.A., Faiziev A.R., Khvorov P.V.
Uranopolycrase (U,Y)(Ti,Nb)2O6 from the miarolic pegmatite Museum in the area of the Kukhilal field (South-Western Pamir, Tajikistan)
Ivanova Yu.A., Vlasov E.A.
Rutile K-feldspar-quartz veins of headwaters of the river Dvoynaya, Western Chukotka
Pavlova 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. In the article 1 table, list of literature from 5 titles. The article contains 1 table, references (5 titles). читать далее...
Shchipalkina 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. читать далее...
Ivanova 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. читать далее...
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.
