Information card for entry 9000725

Structure parameters

• Mineral name: Armangite
• Formula: C As18 Mn26 O57
• Calculated formula: C As18 Mn26 O57
• Title of publication: Armangite, Mn26[As6(OH)4O14][As6O18]2[CO3], a fluorite derivative structure
• Authors of publication: Moore, P. B.; Araki, T.
• Journal of publication: American Mineralogist
• Year of publication: 1979
• Journal volume: 64
• Pages of publication: 748 - 757
• a: 13.491 Å
• b: 13.491 Å
• c: 8.855 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1395.75 ų
• Number of distinct elements: 4
• Space group number: 147
• Hermann-Mauguin space group symbol: P -3
• Hall space group symbol: -P 3
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No