Information card for entry 9000212

Structure parameters

• Mineral name: Synadelphite
• Formula: As3 H13 Mn9 O22
• Calculated formula: As3 H13 Mn9 O22
• Title of publication: Crystal chemistry of the basic manganese arsenates: IV. Mixed arsenic valences in the crystal structure of synadelphite
• Authors of publication: Moore, P. B.
• Journal of publication: American Mineralogist
• Year of publication: 1970
• Journal volume: 55
• Pages of publication: 2023 - 2037
• a: 10.754 Å
• b: 18.865 Å
• c: 9.884 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 2005.21 ų
• Number of distinct elements: 4
• Space group number: 62
• Hermann-Mauguin space group symbol: P n m a
• Hall space group symbol: -P 2ac 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No