| Инд. авторы: | Vasil'ev V.I., Pervukhina N.V., Borisov S.V., Magarill S.A., Naumov D.Y., Kurat'eva N.V. |
| Заглавие: | Aktashite Cu6Hg3As4S12 from the Aktash deposit, Altai, Russia: Refinement and crystal chemical analysis of the structure |
| Библ. ссылка: | Vasil'ev V.I., Pervukhina N.V., Borisov S.V., Magarill S.A., Naumov D.Y., Kurat'eva N.V. Aktashite Cu6Hg3As4S12 from the Aktash deposit, Altai, Russia: Refinement and crystal chemical analysis of the structure // Geology of Ore Deposits. - 2010. - Vol.52. - Iss. 7. - P.656-661. - ISSN 1075-7015. - EISSN 1555-6476. |
| Внешние системы: | DOI: 10.1134/S1075701510070184; РИНЦ: 16979222; SCOPUS: 2-s2.0-78651261779; |
| Реферат: | eng: The composition and structure of aktashite from the Aktash deposit, Gorny Altai, Russia, have been studied by electron microprobe and X-ray structural analysis. On the basis of close compositions and crystal structures, the identity of aktashite from the Gal-Khaya and Aktash deposits has been demonstrated. Crystals of aktashite are of trigonal symmetry; the unit-cell dimensions are: a = 13.7500(4), c = 9.3600(3) Å, V = 532.54(8) Å3, space group R3, Z = 3 for the composition of Cu6Hg3As4S12, R = 0.043. The structure of aktashite as a framework of vertex-shared HgS4- and CuS4- tetrahedrons of the same orientation is intimately related to the sphalerite-type structure. The earlier identified uncommon cluster group [As4] has been verified and its parameters have been refined. It is shown that the structure may be represented as construction blocks (As4S12)12- packed according to the law of the distorted cubic I-cell. © 2010 Pleiades Publishing, Ltd.
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| Ключевые слова: | Mercury (metal); Mercury compounds; Structural analysis; Zinc sulfide; Chemical analysis; arsenic; chemical analysis; chemical composition; crystal chemistry; crystal structure; orientation; sphalerite; symmetry; Altay [Russian Federation]; Russian Federation; Khaya; Crystal symmetry; X ray structural analysis; Unit-cell dimensions; Type structures; Trigonal symmetry; Space Groups; Gorny Altai; Electron microprobes; Deposits; Crystal chemical analysis; |
| Издано: | 2010 |
| Физ. характеристика: | с.656-661 |