Information card for entry 5000230

Structure parameters

• Chemical name: Aluminium phosphate(V) dihydrate
• Mineral name: Variscite 1O, Apophyllite
• Formula: Ca4 F H16 K0.84 Na0.16 O28 Si8
• Calculated formula: Ca4 F H18 K0.84 Na0.16 O28 Si8
• Title of publication: Refinement of the Crystal Structure of Apophyllite I. X-ray Diffraction
• Authors of publication: Colville, A A; Anderson, C P
• Journal of publication: American Mineralogist
• Year of publication: 1971
• Journal volume: 56
• Pages of publication: 1222 - 1233
• a: 8.965 ± 0.002 Å
• b: 8.965 ± 0.002 Å
• c: 15.768 ± 0.002 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1267.3 ų
• Number of distinct elements: 7
• Space group number: 128
• Hermann-Mauguin space group symbol: P 4/m n c
• Hall space group symbol: -P 4 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No