Information card for entry 9005866

Structure parameters

• Mineral name: Pyrophanite
• Formula: Mn O3 Ti
• Calculated formula: Mn O3 Ti
• Title of publication: High-pressure phase transition in MnTiO3 from the ilmenite to the LiNbO3 structure Sample synthesized at 60 kbar and 1300 C
• Authors of publication: Ko, J.; Prewitt, C. T.
• Journal of publication: Physics and Chemistry of Minerals
• Year of publication: 1988
• Journal volume: 15
• Pages of publication: 355 - 362
• a: 5.205 Å
• b: 5.205 Å
• c: 13.7 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 321.435 ų
• Sample thermal history: synthesized at 60 kbar and 1300 C
• Sample pressure history: synthesized at 60 kbar
• Number of distinct elements: 3
• Space group number: 161
• Hermann-Mauguin space group symbol: R 3 c :H
• Hall space group symbol: R 3 -2"c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No