Information card for entry 9007499

Structure parameters

• Mineral name: Ankangite
• Formula: Ba0.4 O8 Ti4
• Calculated formula: Ba0.4 O8 Ti4
• Title of publication: Direct methods in superspace. II The first application to an unknown incommensurate modulated structure Note: this is the average structure, isomorphous with hollandite Note: y-coordinate of O2 altered from .248 to make regular TiO6 polyhedra
• Authors of publication: Xiang, Shi-Bin; Fan, Hai-Fu; Wu, Xiao-Jing; Li, Fang-Hua; Pan, Q.
• Journal of publication: Acta Crystallographica, Section A
• Year of publication: 1990
• Journal volume: 46
• Journal issue: 11
• Pages of publication: 929 - 934
• a: 10.12 Å
• b: 10.12 Å
• c: 2.96 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 303.147 ų
• Number of distinct elements: 3
• Space group number: 87
• Hermann-Mauguin space group symbol: I 4/m
• Hall space group symbol: -I 4
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No