Information card for entry 9003861

Structure parameters

• Mineral name: Pigeonite
• Formula: Al0.016 Ca0.191 Fe0.848 Mg0.919 Mn0.029 Na0.003 O6 Si1.984 Ti0.01
• Calculated formula: Al0.016 Ca0.1909 Fe0.8479 Mg0.9193 Mn0.0287 Na0.003 O6 Si1.984 Ti0.0101
• Title of publication: Kinetics of Fe2±Mg order-disorder in P2_1/c pigeonite Sample: N.13, annealed at T = 650 C for t = 3120 min
• Authors of publication: Domeneghetti, M. C.; Zema, M.; Tazzoli, V.
• Journal of publication: American Mineralogist
• Year of publication: 2005
• Journal volume: 90
• Pages of publication: 1816 - 1823
• a: 9.7096 Å
• b: 8.9413 Å
• c: 5.247 Å
• α: 90°
• β: 108.499°
• γ: 90°
• Cell volume: 431.989 ų
• Sample thermal history: annealed at T = 650 C for t = 3120 min
• Number of distinct elements: 9
• 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