Information card for entry 9004545

Structure parameters

• Mineral name: Arakiite
• Formula: Al0.74 As3 Fe1.26 H23 Mg4.23 Mn8.06 O34 Zn0.71
• Calculated formula: Al0.74 As3 Fe1.26 H23 Mg4.23 Mn8.06 O34 Zn0.71
• Title of publication: The effect of differences in coordination on ordering of polyvalent cations in close-packed structures: The crystal structure of arakiite and comparison with hematolite
• Authors of publication: Cooper, M. A.; Hawthorne, F. C.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 1999
• Journal volume: 37
• Pages of publication: 1471 - 1482
• a: 14.236 Å
• b: 8.206 Å
• c: 24.225 Å
• α: 90°
• β: 93.52°
• γ: 90°
• Cell volume: 2824.64 ų
• Number of distinct elements: 8
• Space group number: 9
• Hermann-Mauguin space group symbol: C 1 c 1
• Hall space group symbol: C -2yc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No