Information card for entry 1101029

Structure parameters

• Chemical name: Potassium aluminium silicate hydrate *
• Mineral name: Muscovite 2M1
• Formula: Al3 H2 K O12 Si3
• Calculated formula: Al3 H3 K O12 Si3
• Title of publication: Crystal structure of a pink Muskovite from Archer's post, Kenya: implications for reverse pleochroism in dioctahedral micas
• Authors of publication: Richardson, S M; Richardson, J W jr.
• Journal of publication: American Mineralogist
• Year of publication: 1982
• Journal volume: 67
• Pages of publication: 69 - 75
• a: 5.1998 ± 0.0021 Å
• b: 9.0266 ± 0.0019 Å
• c: 20.10579 ± 0.0044 Å
• α: 90°
• β: 95.782 ± 0.039°
• γ: 90°
• Cell volume: 938.9 ų
• Number of distinct elements: 5
• Space group number: 15
• Hermann-Mauguin space group symbol: C 1 2/c 1
• Hall space group symbol: -C 2yc
• Residual factor for all reflections: 0.099
• Duplicate of: 1100011
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No