Information card for entry 9001848

Structure parameters

• Mineral name: Phase-D
• Formula: H2.22 Mg1.11 O6 Si1.89
• Calculated formula: H2.22 Mg1.11 O6 Si1.89
• Title of publication: Crystal structure of the dense hydrous magnesium silicate, phase D
• Authors of publication: Yang, H.; Prewitt, C. T.; Frost, D. J.
• Journal of publication: American Mineralogist
• Year of publication: 1997
• Journal volume: 82
• Pages of publication: 651 - 654
• a: 4.7453 Å
• b: 4.7453 Å
• c: 4.345 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 84.732 ų
• Number of distinct elements: 4
• Space group number: 162
• Hermann-Mauguin space group symbol: P -3 1 m
• Hall space group symbol: -P 3 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No