Inclusions of Koragoite in Topaz from Pegmatites of the Mokrusha Deposit, Urals, Russia
- Авторы: Ponomareva N.1, Gordienko V.1, Antonov A.2, Krivovichev S.1, Nesterov A.1, Kazantseva M.1
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Учреждения:
- Institute of Geosciences, Saint Petersburg State University
- Russian Geological Research Institute
- Выпуск: Том 61, № 8 (2019)
- Страницы: 803-808
- Раздел: Minerals and Mineral Parageneses
- URL: https://journals.rcsi.science/1075-7015/article/view/215605
- DOI: https://doi.org/10.1134/S1075701519080099
- ID: 215605
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Аннотация
The present communication is focused on inclusions in topaz from the Mokrusha pegmatite deposit, Urals. These inclusions are intergrown fine crystals of manganocolumbite, cassiterite and a mineral compositionally corresponding to niobium tungstate with minor Mn, Ta, and Fe. Electron microprobe and X-ray diffraction study has revealed that this mineral is identical to that previously described by A. V. Voloshin et al. (1997) in granite pegmatites of the Southwestern Pamir Mountains, Tajikistan. The crystal chemical formula of the mineral is (Mn2.02F0.98)Σ3.00(Nb2.296Ta0.640Ti0.062)Σ3.00(Nb1.04Mn0.960)Σ2.00(W1.343Nb0.664)Σ2.00O20.
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Об авторах
N. Ponomareva
Institute of Geosciences, Saint Petersburg State University
Автор, ответственный за переписку.
Email: n_ponomareva@mail.ru
Россия, Saint Petersburg, 119034
V. Gordienko
Institute of Geosciences, Saint Petersburg State University
Email: n_ponomareva@mail.ru
Россия, Saint Petersburg, 119034
A. Antonov
Russian Geological Research Institute
Email: n_ponomareva@mail.ru
Россия, Saint Petersburg, 199106
S. Krivovichev
Institute of Geosciences, Saint Petersburg State University
Email: n_ponomareva@mail.ru
Россия, Saint Petersburg, 119034
A. Nesterov
Institute of Geosciences, Saint Petersburg State University
Email: n_ponomareva@mail.ru
Россия, Saint Petersburg, 119034
M. Kazantseva
Institute of Geosciences, Saint Petersburg State University
Email: n_ponomareva@mail.ru
Россия, Saint Petersburg, 119034