Information card for entry 9017085

Structure parameters

• Mineral name: Gahnite
• Formula: Al1.92 Fe0.35 Mg0.03 O4 Zn0.7
• Calculated formula: Al15.36 Fe2.8 Mg0.24 O32 Zn5.6
• 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 Sp2781_6c
• 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: 8.1103 Å
• b: 8.1103 Å
• c: 8.1103 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 533.471 ų
• Number of distinct elements: 5
• 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