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Journal/NDM52 2018 eng
New Data on Minerals. 2018. Volume 52.
Edited by P.Yu. Plechov, Professor, Doctor in Science.
Published by the Fersman Mineralogical Museum, Russian Academy of Sciences.
Four issues of the journal in 2018:
Содержание
Contents of issue 1 (volume 52). 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
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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
Contents of issue 2 (volume 52). Articles and brief 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...
Contents of issue 3 (volume 52).
Kasatkin 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. читать далее...
Gorelikova 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. читать далее...
Contents of issue 4 (volume 52).
Shiryaev A.A., Titkov S.V.
Spatial distribution of “Amber” defects in diamond: results of IR mapping
Pautov L.A., Mirakov M.A., Shodibekov M.A., Fayziev A.R., Khvorov P.V., Makhmadsharif S.
Occurrence of Tungstenite-2H in magnesian skarns of gem quality spinel deposit Kukhi-Lal (South-Western Pamir, Tajikistan)
Karpenko 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 читать далее...
