T. A. Gvozdenko

Lomonosov Moscow State University

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ДА

Д. А. Ханин

A. N. Nesmeyanov Institute of Organoelement Compounds

ЕГ

Е.И. Герасимова

Siberian Federal University

ИА

И. А. Бакшеев

Lomonosov Moscow State University

V. O. Yapaskurt

Moscow State University

МV

М. V. Chervyakovskaya

Zavaritsky Institute of Geology and Geochemistry

M. V. Voronin

Institute of Experimental Mineralogy

I.A. Baksheev

Lomonosov Moscow State University

Vadim V. Smolensky

Saint Petersburg Mining University

M. V. Chervyakovskya

Zavaritsky Institute of Geology and Geochemistry

Cooperative Institutions

Lomonosov Moscow State University

Russian Academy of Sciences

Institute of Experimental Mineralogy

Moscow State University

Zavaritsky Institute of Geology and Geochemistry

A. N. Nesmeyanov Institute of Organoelement Compounds

D. Mendeleyev University of Chemical Technology of Russia

Moscow Engineering Physics Institute

Institute of Volcanology and Seismology

Kurchatov Institute

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Iron-bearing to iron-rich tourmalines from granitic pegmatites of the Murzinka pluton, Central Urals, Russia

Mineralogical Magazine (2022)

T. A. Gvozdenko И. А. Бакшеев Д. А. Ханин M. V. Voronin М. V. Chervyakovskaya

Abstract Black tourmalines from seven granitic pegmatites (Golodnaya, Kazennitsa, Mokrusha, Kopi Mora, Zheltyye Yamy, Buzheninov Bor and Ministerskaya) related to the Murzinka pluton, Central Urals, Russia have been investigated using electron microprobe analysis, LA-ICP-MS, Raman and Mössbauer spectroscopy. Pegmatites are hosted by serpentinites and gneisses and are classified as schorl, oxy-schorl, fluor-schorl, dravite, oxy-dravite, foitite, oxy-foitite and darrellhenryite. The possible compositional evolution of tourmalines from the Ural pegmatites is as follows: Mg-rich dravite through to Fe-rich schorl, foitite and oxy-foitite to Fe- and Mn-rich darrellhenryite. The major substitutions in the tourmalines are: (1) Fe 2+ ↔ Mg; (2) Al + W O 2– ↔ Fe 2+ + W OH – ; (3) X-site vacancy + Al ↔ Na + Fe 2+ ; (4) Al + W O 2– ↔ Mg + W OH – ; (5) X-site vacancy + Al ↔ Na + Mg; and (6) Fe ↔ Mn. Statical processing of the trace- and major-element composition distinguished three tourmaline groups: (1) trace Co, Ni, Pb, and major Ca and Mg; (2) uni-, di- and trivalent traces (Li, Zn, Ga) and di- and trivalent majors (Al, Mn); (3) U, Th, Hf, Ta, Nb, Y, In, and Sn which correspond to tri-, tetra-, and pentavalent high-field-strength elements. Mössbauer data shows the Fe 3+ /Fe 2+ ratios in tourmalines from pegmatites hosted by gneisses (0.05–0.18) and serpentinites (0.28–0.65), indicates different oxidising environments. Raman data are consistent with the composition of the tourmalines.

Pegmatite

Tourmaline

10.1180/mgm.2022.104

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Citations (4)

New data on chemical composition of lithium mica from granitic pegmatites of Murzinka pluton (Central Urals)

Moscow University Bulletin Series 4 Geology (2020)

T. A. Gvozdenko И. А. Бакшеев Е.И. Герасимова Д. А. Ханин M. V. Chervyakovskya

Mica samples from granitic pegmatites of Mokrusha and Ministerskaya mines, Murzinka pluton, Central Urals are polylithionite, sokolovaite, trilithionite, Li-bearing muscovite, and annite–phlogopite series. Chromium and magnesium, uncommon elements for light mica are detected in samples from both mines, indicates host-rock contamination of pegmatites. The low values K/Rb ratio and Ta/Nb ratio define a very high degree of pegmatite differentiation of both mines.

Pegmatite

Muscovite

Phlogopite

10.33623/0579-9406-2020-3-81-88

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Citations (1)

New Data on the Chemical Composition of Lithium Micas from Granitic Pegmatites of the Murzinka Pluton, Central Urals, Russia

Moscow University Geology Bulletin (2020)

T. A. Gvozdenko И. А. Бакшеев Е.И. Герасимова Д. А. Ханин М. V. Chervyakovskaya

Pegmatite

Muscovite

Phlogopite

10.3103/s0145875220040079

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New Data on Tourmaline of Murzinka Gemstone District

VM-NOVITATES Новости из Геологического музея им В И Вернадского (2019)

T. A. Gvozdenko Е.И. Герасимова I.A. Baksheev

Мурзинские самоцветные копи насчитывают около 250 объектов, расположенных в пределах одноименного гранитного массива, находящегося в 100 км к северу от г. Екатеринбурга. Среди более 160 минералов, отмеченных в этих копях, особое место занимают самоцветы, находки которых упоминаются с XVII века (аметист, топаз, турмалин, аквамарин и др.). Минералы надгруппы турмалина представлены эльбаитом, шерлом, увитом, дравитом, оленитом, фойтитом и россманитом. Проведено комплексное исследование образцов турмалинов из копей Министерская, Мокруша, копи Мора, Буженинов Бор, Желтые Ямы, Липовка и Казенница. В копи Буженинов Бор установлен дравит, нехарактерный минерал для гранитныхпегматитов. С помощью спектроскопии комбинационного рассеивания света в образце шерла из копи Казенница выявлено наличие Fe3+. Определен химический состав турмалинов с помощью электронного микрозондового анализа.

Tourmaline

10.31343/1029-7812-2019-16-1-214-226

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