Information card for entry 9003060

Structure parameters

• Mineral name: Pigeonite
• Formula: Ca0.195 Fe0.835 Mg0.921 Mn0.027 O6 Si2
• Calculated formula: Ca0.1953 Fe0.8351 Mg0.9208 Mn0.0273 O6 Si2
• Title of publication: Coupling between non-convergent ordering and transition temperature in the C2/c - P2_1/c phase transition in pigeonite Sample: BTS-308 n.17-3, after heating at 750 deg C
• Authors of publication: Camara, F.; Carpenter, M. A.; Domeneghetti, M. C.; Tazzoli, V.
• Journal of publication: American Mineralogist
• Year of publication: 2003
• Journal volume: 88
• Pages of publication: 1115 - 1128
• a: 9.707 Å
• b: 8.941 Å
• c: 5.247 Å
• α: 90°
• β: 108.48°
• γ: 90°
• Cell volume: 431.906 ų
• Sample thermal history: after heating at 750 deg C
• Number of distinct elements: 6
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/c 1
• Hall space group symbol: -P 2ybc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No