Information card for entry 9017307

Structure parameters

• Mineral name: Orthoclase
• Formula: Al1.005 Ba0.01 Ca0.01 K0.88 Na0.1 O8 Si2.995
• Calculated formula: Al1.005 Ba0.01 Ca0.01 K0.88 Na0.1 O8 Si2.995
• Title of publication: The crystal structures of nine K feldspars from the Adamello Massif (Northern Italy) Note: Sample CA1A
• Authors of publication: Dal Negro, A.; De Pieri, R.; Quareni, S.
• Journal of publication: Acta Crystallographica, Section B
• Year of publication: 1978
• Journal volume: 34
• Pages of publication: 2699 - 2707
• a: 8.563 Å
• b: 12.99 Å
• c: 7.21 Å
• α: 90°
• β: 115.93°
• γ: 90°
• Cell volume: 721.255 ų
• Number of distinct elements: 7
• Space group number: 2
• Hermann-Mauguin space group symbol: C -1
• Hall space group symbol: -C 1
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No