Information card for entry 1011080

Structure parameters

• Chemical name: Dialuminium phyllo-disilicate tetrahydroxide *
• Mineral name: Nacrite 4M
• Formula: Al2 H4 O9 Si2
• Calculated formula: Al2 H4 O9 Si2
• Title of publication: The crystal structure of Nacrite and a comparison of certain optical properties of the caolin group with its structures
• Authors of publication: Gruner, J W
• Journal of publication: Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977)
• Year of publication: 1933
• Journal volume: 85
• Pages of publication: 345 - 354
• a: 5.16 ± 0.02 Å
• b: 8.93 ± 0.02 Å
• c: 28.65999 ± 0.04 Å
• α: 90°
• β: 91.72 ± 0.25°
• γ: 90°
• Cell volume: 1320 ų
• Number of distinct elements: 4
• Space group number: 9
• Hermann-Mauguin space group symbol: C 1 c 1
• Hall space group symbol: C -2yc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No