Information card for entry 9017082

Structure parameters

• Mineral name: Gahnite
• Formula: Al1.99 Fe0.04 O4 Zn0.97
• Calculated formula: Al15.92 Fe0.32 O32 Zn7.76
• Title of publication: Optical absorption spectroscopy study of the causes for color variations in natural Fe-bearing gahnite: Insights from iron valency and site distribution data Note: Sample Ni8967d
• Authors of publication: Fregola, R. A.; Skogby, H.; Bosi, F.; D'Ippolito V; Andreozzi, G. B.; Halenius, U.
• Journal of publication: American Mineralogist
• Year of publication: 2014
• Journal volume: 99
• Pages of publication: 2187 - 2195
• a: 8.0912 Å
• b: 8.0912 Å
• c: 8.0912 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 529.711 ų
• Number of distinct elements: 4
• 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