Information card for entry 9014255

Structure parameters

• Mineral name: Alum-(K)
• Formula: Al H24 K1.3 O20 S2
• Calculated formula: Al H24 K1.3 O20 S2
• Title of publication: Refinement of the alum structures. III. X-ray study of the a alums, K, Rb and NH4Al(SO4)2*12H2O
• Authors of publication: Larson, A. C.; Cromer, D. T.
• Journal of publication: Acta Crystallographica
• Year of publication: 1967
• Journal volume: 22
• Pages of publication: 793 - 800
• a: 12.157 Å
• b: 12.157 Å
• c: 12.157 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1796.71 ų
• Number of distinct elements: 5
• Space group number: 205
• Hermann-Mauguin space group symbol: P a -3
• Hall space group symbol: -P 2ac 2ab 3
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No