Information card for entry 9000858

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 = 510 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: 8.314 Å
• b: 12.973 Å
• c: 7.15 Å
• α: 90°
• β: 116.135°
• γ: 90°
• Cell volume: 692.335 ų
• Ambient diffraction temperature: 783.15 K
• Number of distinct elements: 5
• Space group number: 12
• Hermann-Mauguin space group symbol: C 1 2/m 1
• Hall space group symbol: -C 2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No