Information card for entry 9001381

Structure parameters

• Mineral name: Milarite
• Formula: Al0.81 Be2.19 Ca2 H3.52 K Na0.188 O30.668 Si12
• Calculated formula: Al0.81 Be2.19 Ca2 H1.336 K Na0.188 O30.668 Si12
• Title of publication: The crystal chemistry of the milarite-group minerals sample #25 from Guanajuato Note: U(1,2) of WatB/NaB changed to match symmetry constraints
• Authors of publication: Hawthorne, F. C.; Kimata, M.; Cerny, P.; Ball, N. A.; Rossman, G. R.; Grice, J. D.
• Journal of publication: American Mineralogist
• Year of publication: 1991
• Journal volume: 76
• Pages of publication: 1836 - 1856
• a: 10.41 Å
• b: 10.41 Å
• c: 13.845 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1299.35 ų
• Number of distinct elements: 8
• Space group number: 192
• Hermann-Mauguin space group symbol: P 6/m c c
• Hall space group symbol: -P 6 2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No