Information card for entry 9014301

Structure parameters

• Mineral name: Phase-X
• Formula: H0.5 K1.5 Mg2 O7 Si2
• Calculated formula: H0.49998 K1.5 Mg2 O7 Si2
• Title of publication: New structural features of the high-pressure synthetic sheet-disilicate Phase-X, K(2-x)Mg2Si2O7Hx
• Authors of publication: Welch, M. D.; Konzett, J.; Bindi, L.; Kohn, S. C.; Frost, D. J.
• Journal of publication: American Mineralogist
• Year of publication: 2012
• Journal volume: 97
• Pages of publication: 1849 - 1857
• a: 5.0646 Å
• b: 5.0646 Å
• c: 13.2379 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 294.063 ų
• Number of distinct elements: 5
• Space group number: 193
• Hermann-Mauguin space group symbol: P 63/m c m
• Hall space group symbol: -P 6c 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No