Information card for entry 1557939

Structure parameters

• Common name: Ca4(Al8Si8O32)18H2O
• Mineral name: gismondine
• Formula: Al8 Ca4 H36 O50 Si8
• Calculated formula: Al8 Ca4 H24 O50 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: 10.0214 ± 0.0001 Å
• b: 10.5997 ± 0.0001 Å
• c: 9.8327 ± 0.0001 Å
• α: 90°
• β: 92.363 ± 0.001°
• γ: 90°
• Cell volume: 1043.58 ± 0.018 ų
• Ambient diffraction temperature: 298 K
• Ambient diffracton pressure: 100 kPa
• Number of distinct elements: 5
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/c 1
• Hall space group symbol: -P 2ybc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No