Инд. авторы:	Vasil'ev V.I., Pervukhina N.V., Borisov S.V., Magarill S.A.
Заглавие:	New data on the composition and crystal structure of galkhaite (Hg,Cu)6(Cs,Tl)(As,Sb)4S12
Библ. ссылка:	Vasil'ev V.I., Pervukhina N.V., Borisov S.V., Magarill S.A. New data on the composition and crystal structure of galkhaite (Hg,Cu)6(Cs,Tl)(As,Sb)4S12 // Geology of Ore Deposits. - 2010. - Vol.52. - Iss. 7. - P.662-668. - ISSN 1075-7015. - EISSN 1555-6476.
Внешние системы:	DOI: 10.1134/S1075701510070196; РИНЦ: 16981825; SCOPUS: 2-s2.0-78651253177;
Реферат:	eng: The composition of galkhaite from the Gal-Khaya deposit (Yakutia, Russia) and Chauvay Mine (Kyrgyzstan) has been examined by electron microprobe. A significant Cs content (up to 6.64 wt %) has been established in the mineral from both deposits; earlier, it had been not detected by either chemical or spectral analyses. The empirical formulas of galkhaite are (Hg4.89Cu0.92Zn0.07)5.88(Cs0.71Tl0.17)0.88(As3.98Sb0.17)4.15 S12.10 and (Hg4.64Cu0.98Zn0.34)5.96 (Cs0.85Tl0.04)0.89(As3.68Sb0.42)4.10S12.05 at the Gal-Khaya deposit and Chauvay Mine, respectively. The crystal structure of galkhaite from the Chauvay Mine (cubic, I43m, a = 10.4144(1) Å, V = 1129.5(2) Å3, Z = 2) for the composition [Hg4.83(Cu,Zn)0.98□](Cs0.71Tl0.14□) (As3.44Sb0.56)S12 has been determined by direct methods and refined to R = 0.0203. The structure of galkhaite is a framework consisting of vertex-shared [(Hg,Cu)-S4 2.5068(3) Å] tetrahedrons of the same orientation as large cavities formed in the initial sphalerite structural type due to eight anion vacancies: two [S4]-tetrahedrons at the point of origin and at the center of the I-cell and 12 cation vacancies as 2 cation octahedrons around the 000 and sites. © 2010 Pleiades Publishing, Ltd.
Ключевые слова:	Cation vacancies; Direct method; Electron microprobes; Empirical formulas; Khaya; Sakha; Russian Federation; Kyrgyzstan; sulfosalt group; crystallography; crystal structure; cesium; cation; Crystal structure; Zinc sulfide; Zinc; Spectrum analysis; Positive ions; Mercury (metal); Deposits; Chemical analysis; Cesium; Yakutia; Structural type; Spectral analysis; Anion vacancy; Kyrgyzstan;
Издано:	2010
Физ. характеристика:	с.662-668