Information card for entry 2012012

Structure parameters

• Formula: Al O4 P
• Calculated formula: Al O4.00008 P
• Title of publication: Hexagonal high-temperature form of AlPO~4~ tridymite, from X-ray powder data
• Authors of publication: Graetsch, Heribert A.
• Journal of publication: Acta Crystallographica, Section C
• Year of publication: 2001
• Journal volume: 57
• Pages of publication: 665 - 667
• a: 5.0976 ± 0.0003 Å
• b: 5.0976 ± 0.0003 Å
• c: 8.3441 ± 0.0004 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 187.77 ± 0.02 ų
• Cell temperature: 593 K
• Ambient diffraction temperature: 593 K
• Number of distinct elements: 3
• Space group number: 186
• Hermann-Mauguin space group symbol: P 63 m c
• Hall space group symbol: P 6c -2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No