Information card for entry 9004709

Structure parameters

• Mineral name: Astrophyllite
• Formula: Ca0.121 F0.5 Fe5.988 H4 K1.898 Mg0.064 Na0.627 O30 Si8 Ti1.15 Zr0.85
• Calculated formula: Ca0.121 F0.5 Fe5.988 K1.898 Mg0.064 Na0.627 O30 Si8 Ti1.15 Zr0.85
• Title of publication: Insights into astrophyllite-group minerals II: Crystal chemistry Note: sample LAB3, peralkaline nepheline gneiss
• Authors of publication: Piilonen, P. C.; McDonald, A. M.; Lalonde, A. E.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 2003
• Journal volume: 41
• Pages of publication: 27 - 54
• a: 5.4049 Å
• b: 11.9175 Å
• c: 11.7488 Å
• α: 112.93°
• β: 94.627°
• γ: 103.139°
• Cell volume: 666.537 ų
• Number of distinct elements: 11
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No