Information card for entry 1557941

Structure parameters

• Common name: Ca4(Al8Si8O32)18H2O
• Mineral name: gismondine C2/c at 225 C
• Formula: Al8 Ca4 H36 O50 Si8
• Calculated formula: Al8 Ca3.784 O36 Si8
• Title of publication: Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure
• Authors of publication: Wadoski-Romeijn, E.; Armbruster, T.
• Journal of publication: American Mineralogist
• Year of publication: 2013
• Journal volume: 98
• Pages of publication: 1988 - 1997
• a: 9.434 ± 0.004 Å
• b: 9.044 ± 0.002 Å
• c: 9.695 ± 0.002 Å
• α: 90°
• β: 89.04 ± 0.01°
• γ: 90°
• Cell volume: 827.1 ± 0.4 ų
• Ambient diffraction temperature: 498 K
• Ambient diffracton pressure: 100 kPa
• Number of distinct elements: 5
• Space group number: 15
• Hermann-Mauguin space group symbol: I 1 2/a 1
• Hall space group symbol: -I 2ya
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No