Information card for entry 9000857

Structure parameters

• Mineral name: Anorthoclase
• Formula: Al K0.25 Na0.75 O8 Si3
• Calculated formula: Al K0.25 Na0.75 O8 Si3
• Title of publication: The anorthoclase structures: The effects of temperature and composition Mt. Gibele, Or = 22.3, T = 23 deg C feldspar
• Authors of publication: Harlow, G. E.
• Journal of publication: American Mineralogist
• Year of publication: 1982
• Journal volume: 67
• Pages of publication: 975 - 996
• a: 8.252 Å
• b: 12.936 Å
• c: 7.139 Å
• α: 92.11°
• β: 116.32°
• γ: 90.22°
• Cell volume: 682.434 ų
• Ambient diffraction temperature: 296.15 K
• Number of distinct elements: 5
• Space group number: 2
• Hermann-Mauguin space group symbol: C -1
• Hall space group symbol: -P 1 (1/2*x+1/2*y,1/2*x-1/2*y,-z)
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No