Инд. авторы:	Matsuzaki T., Hagiya K., Shatskiy A., Katsura T., Matsui M.
Заглавие:	Crystal structure of anhydrous phase X, K1.93(Mg2.02Cr0.02)Si2.00O7
Библ. ссылка:	Matsuzaki T., Hagiya K., Shatskiy A., Katsura T., Matsui M. Crystal structure of anhydrous phase X, K1.93(Mg2.02Cr0.02)Si2.00O7 // Journal of Mineralogical and Petrological Sciences. - 2010. - Vol.105. - Iss. 6. - P.303-308. - ISSN 1345-6296. - EISSN 1349-3825.
Внешние системы:	DOI: 10.2465/jmps.090321; SCOPUS: 2-s2.0-78650751668;
Реферат:	eng: The crystal structure of anhydrous phase X with composition K1.93(Mg2.02Cr0.02)Si2.00O7 was refined by means of X-ray diffraction analysis of a single-crystal synthesized at 16.5 GPa and 1700 °C. The structure is trigonal with space group P3̄1m and the cell parameters are a = 5.0756 (1), c = 6.5969 (2) Å, and V = 147.179 (6) Å3. The structure is closely related to those of the space group P63cm, which have previously been identified to have hydrous and anhydrous phase X's. However, these differ in the arrangements of Si2O7 groups and MgO6 octahedra.
Ключевые слова:	Space group P3̄1m; Single-crystal; Phase X; K-bearing mantle mineral; High-pressure and -temperature synthesis;
Издано:	2010
Физ. характеристика:	с.303-308