Information card for entry 9000735

Structure parameters

• Mineral name: Ahrensite
• Formula: Fe2 O4 Si
• Calculated formula: Fe2 O4 Si
• Title of publication: Crystal structures and electron densities of nickel and iron silicate spinels at elevated temperature or pressure P = 0.001 kbar, T = 23 C
• Authors of publication: Finger, L. W.; Hazen, R. M.; Yagi, T.
• Journal of publication: American Mineralogist
• Year of publication: 1979
• Journal volume: 64
• Pages of publication: 1002 - 1009
• a: 8.236 Å
• b: 8.236 Å
• c: 8.236 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 558.662 ų
• Ambient diffraction temperature: 296.15 K
• Ambient diffracton pressure: 100 kPa
• Number of distinct elements: 3
• Space group number: 227
• Hermann-Mauguin space group symbol: F d -3 m :2
• Hall space group symbol: -F 4vw 2vw 3
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No