Information card for entry 1544876

Structure parameters

• Common name: (K,Na)(Mn,Mg,Fe)3(Si,Al)4O10(OH)2
• Mineral name: 1M-manganese trioctahedral micas
• Formula: Al1.15 H1.93 K0.846 Mg1.74 Mn1.14 Na0.187 O11.2 Si2.75
• Calculated formula: Al1.16 K0.85 Mg1.74 Mn1.14 Na0.19 O12 Si2.64
• Title of publication: The crystal structures of 1M-kinoshitalite, a new barium brittle mica and 1M-manganese trioctahedral micas Sample: No.1
• Authors of publication: Kato, T.; Miura, Y.; Yoshii, M.; Maeda, K.
• Journal of publication: Mineralogical Journal
• Year of publication: 1979
• Journal volume: 9
• Pages of publication: 392 - 408
• a: 5.38 ± 0.002 Å
• b: 9.295 ± 0.002 Å
• c: 10.318 ± 0.004 Å
• α: 90°
• β: 99.96 ± 0.02°
• γ: 90°
• Cell volume: 508.2 ± 0.3 ų
• Number of distinct elements: 8
• Space group number: 12
• Hermann-Mauguin space group symbol: C 1 2/m 1
• Hall space group symbol: -C 2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No