Information card for entry 9009527

Structure parameters

• Mineral name: Calciotantite
• Formula: Ca0.94 Na0.06 Nb0.13 O10.97 Ta3.86
• Calculated formula: Ca0.94 Na0.06 Nb0.13 O10.97 Ta3.86
• Title of publication: Identity of ungursaite with calciotantite and synthetic CaTa4O11 Note: displacement parameters taken from ICSD
• Authors of publication: Yamnova, N. A.; Pushcharovsky D Yu; Voloshin, A. V.
• Journal of publication: Soviet Physics Crystallography
• Year of publication: 1988
• Journal volume: 33
• Pages of publication: 498 - 499
• a: 6.245 Å
• b: 6.245 Å
• c: 12.323 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 416.209 ų
• Number of distinct elements: 5
• Space group number: 182
• Hermann-Mauguin space group symbol: P 63 2 2
• Hall space group symbol: P 6c 2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No