Information card for entry 1539547

Structure parameters

• Chemical name: Th Ca2 (Si8 O20)
• Formula: Ca2 O20 Si8 Th
• Calculated formula: Ca2 O20 Si8 Th
• Title of publication: A mineralogical study and cristal-structure determination of nonmetamicht ekanite, Th Ca2 Si8 O20
• Authors of publication: Szymanski, J.T.; Owens, D.R.; Chao, G.Y.; Roberts, A.C.; Ansell, H.G.
• Journal of publication: Canadian Mineralogist
• Year of publication: 1982
• Journal volume: 20
• Pages of publication: 65 - 75
• a: 7.483 Å
• b: 7.483 Å
• c: 14.893 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 833.938 ų
• Number of distinct elements: 4
• Space group number: 97
• Hermann-Mauguin space group symbol: I 4 2 2
• Hall space group symbol: I 4 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No