Information card for entry 9005290

Structure parameters

• Mineral name: Afghanite
• Formula: Al12 Ca5 Cl2.9 F0.1 K2.36 Na8.64 O60 S3 Si12
• Calculated formula: Al12 Ca4.9999 Cl2.9 F0.1002 K2.3598 Na8.64 O48 Os11.9999 S3 Si12
• Title of publication: Crystal structure of afghanite, the eight-layer member of the cancrinite-group: evidence for long-range Si,Al ordering
• Authors of publication: Ballirano, P.; Bonaccorsi, E.; Maras, A.; Merlino, S.
• Journal of publication: European Journal of Mineralogy
• Year of publication: 1997
• Journal volume: 9
• Pages of publication: 21 - 30
• a: 12.8013 Å
• b: 12.8013 Å
• c: 21.4119 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 3038.74 ų
• Number of distinct elements: 9
• Space group number: 159
• Hermann-Mauguin space group symbol: P 3 1 c
• Hall space group symbol: P 3 -2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No