Information card for entry 9000579

Structure parameters

• Mineral name: Armalcolite
• Formula: Fe0.5 Mg0.5 O5 Ti1.999
• Calculated formula: Fe0.5 Mg0.5 O5 Ti1.999
• Title of publication: Cation distribution and high-temperature crystal chemistry of armalcolite sample Arm-E, T = 24 deg C, before annealing
• Authors of publication: Wechsler, B. A.
• Journal of publication: American Mineralogist
• Year of publication: 1977
• Journal volume: 62
• Pages of publication: 913 - 920
• a: 9.7762 Å
• b: 10.0341 Å
• c: 3.7504 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 367.897 ų
• Ambient diffraction temperature: 297.15 K
• Sample thermal history: 24 deg C, before annealing
• Number of distinct elements: 4
• Space group number: 63
• Hermann-Mauguin space group symbol: B b m m
• Hall space group symbol: -B 2 2b
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No