Information card for entry 9004389

Structure parameters

• Mineral name: Varennesite
• Formula: H2 Mn2 Na8 O39 Si10
• Calculated formula: H2 Mn2 Na8 O39 Si10
• Title of publication: Varennesite, a new species of hydrated Na-Mn silicate with a unique monophyllosilicate structure
• Authors of publication: Grice, J. D.; Gault, R. A.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 1995
• Journal volume: 33
• Pages of publication: 1073 - 1081
• a: 13.447 Å
• b: 15.022 Å
• c: 17.601 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 3555.42 ų
• Number of distinct elements: 5
• Space group number: 63
• Hermann-Mauguin space group symbol: C m c m
• Hall space group symbol: -C 2c 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No