Information card for entry 1001776

Structure parameters

• Chemical name: Uranium ditantalate
• Mineral name: Uranmicrolite
• Formula: O7 Ta2 U
• Calculated formula: O7 Ta2 U
• Title of publication: Contribution a l'etude de quelques oxydes doubles que forme le tantale avec l'etain, l'uranium et le calcium.
• Authors of publication: Gasperin, M
• Journal of publication: Bulletin de la Societe Francaise de Mineralogie et de Cristallographie (72,1949-100,1977)
• Year of publication: 1960
• Journal volume: 83
• Pages of publication: 1 - 21
• a: 10.37 ± 0.05 Å
• b: 10.37 ± 0.05 Å
• c: 10.37 ± 0.05 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1115.2 ų
• Sample thermal history: heating U Ta2 O8 at 1973 K for 30 min
• Number of distinct elements: 3
• Space group number: 227
• Hermann-Mauguin space group symbol: F d -3 m :1
• Hall space group symbol: F 4d 2 3 -1d
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No