Information card for entry 9016743

Structure parameters

• Mineral name: Orthoclase
• Formula: Al1.02 K0.88 Na0.12 O8 Si2.98
• Calculated formula: Al1.02 K0.88 Na0.12 O8 Si2.98
• Title of publication: The structures of monoclinic potassium-rich feldspars Note: variety adularia
• Authors of publication: Phillips, M. W.; Ribbe, P. H.
• Journal of publication: American Mineralogist
• Year of publication: 1973
• Journal volume: 58
• Pages of publication: 263 - 270
• a: 8.545 Å
• b: 12.967 Å
• c: 7.201 Å
• α: 90°
• β: 116°
• γ: 90°
• Cell volume: 717.141 ų
• 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