Information card for entry 1539628

Structure parameters

• Chemical name: (Na17.28 K4.72 Ca2) Ca8 (Si24 Al24 O96) (S O4)6 Cl5.8 F0.18
• Formula: Al24 Ca10 Cl5.8 F0.18 K4.72 Na17.28 O120 S6 Si24
• Calculated formula: Al24 Ca10.004 Cl5.8 F0.18 K4.716 Na17.28 O119.999 S6 Si24
• 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 (1,1989-)
• 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