Information card for entry 9006311

Structure parameters

• Mineral name: Hercynite
• Formula: Al2 Fe O4
• Calculated formula: Al2 Fe O4
• Title of publication: Powder XRD structure refinements and 57Fe Mossbauer effect study of synthetic Zn1-xFexAl2O4 (o<x<=1) spinels annealed at different temperatures Sample: 1.0, annealed at 725 degrees C for 48 hours, then quenched
• Authors of publication: Waerenborgh, J. C.; Figueiredo, M. O.; Cabral, J. M. P.; Pereira, L. C. J.
• Journal of publication: Physics and Chemistry of Minerals
• Year of publication: 1994
• Journal volume: 21
• Pages of publication: 460 - 468
• a: 8.1547 Å
• b: 8.1547 Å
• c: 8.1547 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 542.28 ų
• Sample thermal history: annealed at 725 degrees C for 48 hours, then quenched
• 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