Information card for entry 8103542

Structure parameters

• Chemical name: K.58 Na0.42 (Al Si3 O8)
• Mineral name: Orthoclase
• Formula: Al K0.58 Na0.42 O8 Si3
• Calculated formula: Al1.01 K0.58 Na0.42 O8 Si2.99
• Title of publication: Crystal structure of a synthetic, compositionally intermediate, hypersolvus alkali felspar: evidence for Na, K site ordering
• Authors of publication: Fenn, P.M.; Brown, G.E.
• Journal of publication: Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (145,1977-148,1979)
• Year of publication: 1977
• Journal volume: 145
• Pages of publication: 124 - 145
• a: 8.434 Å
• b: 13.015 Å
• c: 7.1717 Å
• α: 90°
• β: 116.09°
• γ: 90°
• Cell volume: 707.012 ų
• 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