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A new mineral species rossovskyite, (Fe 3+ ,Ta)(Nb,Ti)O 4 : crystal chemistry and physical properties
Автор | Konovalenko, S. I. | |
Автор | Ananyev, S. A. | |
Автор | Chukanov, N. V. | |
Автор | Rastsvetaeva, R. K. | |
Автор | Aksenov, S. M. | |
Автор | Baeva, A. A. | |
Автор | Gainov, R. R. | |
Автор | Vagizov, F. G. | |
Автор | Lopatin, O. N. | |
Автор | Nebera, T. S. | |
Дата внесения | 2017-06-16T10:28:13Z | |
Дата, когда ресурс стал доступен | 2017-06-16T10:28:13Z | |
Дата публикации | 2015-11 | |
Библиографическое описание | Konovalenko, S. I. A new mineral species rossovskyite, (Fe 3+ ,Ta)(Nb,Ti)O 4 : crystal chemistry and physical properties [Текст] / S. I. Konovalenko, S. A. Ananyev, N. V. Chukanov, R. K. Rastsvetaeva, S. M. Aksenov, A. A. Baeva, R. R. Gainov, F. G. Vagizov, O. N. Lopatin, T. S. Nebera // Physics and Chemistry of Minerals. — 2015. — Т. 42 (№ 10). — С. 825-833 | |
ISSN | 03421791 | |
URI (для ссылок/цитирований) | https://elib.sfu-kras.ru/handle/2311/33082 | |
Описание | Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала. | |
Аннотация | Abstract A new mineral rossovskyite named after L.N. Rossovsky was discovered in granite pegmatites of the Bul- gut occurrence, Altai Mts., Western Mongolia. Associated minerals are microcline, muscovite, quartz, albite, garnet of the almandine–spessartine series, beryl, apatite, triplite, zircon, pyrite, yttrobetafite-(Y) and schorl. Rossovskyite forms flattened anhedral grains up to 6 × 6 × 2 cm. The color of the mineral is black, and the streak is black as well. The luster is semi-metallic, dull. Mohs hardness is 6. No cleavage or parting is observed. Rossovskyite is brittle, with uneven fracture. The density measured by the hydrostatic weighing method is 6.06 g/cm 2 , and the density calculated from the empirical formula is 6.302 g/cm 3 . Rossovskyite is biaxial, and the color in reflection is gray to dark gray The IR spectrum contains strong band at 567 cm −1 (with shoulders at 500 and 600 cm −1 ) corresponding to cation– oxygen stretching vibrations and weak bands at 1093 and 1185 cm −1 assigned as overtones. The reflection spectrum in visible range is obtained. According to the Mössbauer spectrum, the ratio Fe 2+ :Fe 3+ is 35.6:64.4. The chemical composition is as follows (electron microprobe, Fe appor- tioned between FeO and Fe 2 O 3 based on Mössbauer data, wt%): MnO 1.68, FeO 5.92, Fe 2 O 3 14.66, TiO 2 7.69, Nb 2 O 5 26.59, Ta 2 O 5 37.51, WO 3 5.61, total 99.66. The empirical formula calculated on four O atoms is: Mn 2+ 0.06 Fe 2+ 0.21 Fe 3+ 0.47 Ti 0.25 Nb 0.51 Ta 0.43 W 0.06 O 4 . The crystal structure was deter- mined using single-crystal X-ray diffraction data. The new mineral is monoclinic, space group P2/c, a = 4.668(1), b = 5.659(1), c = 5.061(1) Å, β = 90.21(1)º; V = 133.70(4) Å 3 , Z = 2. Topologically, the structure of rossovskyite is analogous to that of wolframite-group minerals. The crystal-chemical formula of rossovskyite is [(Fe 3+ , Fe 2+ , Mn) 0.57 Ta 0.32 Nb 0.11 ][Nb 0.40 Ti 0.25 Fe 0.18 Ta 0.11 W 0.06 ]O 4 . The strongest lines of the powder X-ray diffraction pattern [d, Å (I, %) (hkl)] are as follows: 3.604 (49) (110), 2.938 (100) (−1−11), 2.534 (23) (002), 2.476 (29) (021), 2.337 (27) (200), 1.718 (26) (−202), 1.698 (31) (−2−21), 1.440 (21) (−311). The type specimen of rossovskyite is deposited in the Mineralogical Museum of the Tomsk State University, Tomsk, 634050 Russia, with the inventory number 20927. | |
Ссылка на другой сайт | http://istina.msu.ru/publications/article/11685409/ | |
Тема | New mineral | |
Тема | Rossovskyite | |
Тема | Structure | |
Тема | Granite-pegmatite | |
Тема | Mongolia | |
Название | A new mineral species rossovskyite, (Fe 3+ ,Ta)(Nb,Ti)O 4 : crystal chemistry and physical properties | |
Тип | Journal Article | |
Тип | Published Journal Article | |
Страницы | 825-833 | |
ГРНТИ | 38.35.21 | |
Дата обновления | 2017-06-16T10:28:13Z | |
DOI | 10.1007/s00269-015-0766-5 | |
Институт | Институт горного дела, геологии и геотехнологий | |
Подразделение | Кафедра геологии, минералогии и петрографии | |
Журнал | Physics and Chemistry of Minerals | |
Квартиль журнала в Scopus | Q2 |