Information card for entry 9001176

Structure parameters

• Mineral name: Miguelromeroite
• Formula: As4 Ca0.08 H10 Mn4.57 O20 Zn0.32
• Calculated formula: As4 Ca0.08 H10 Mn4.57 O20 Zn0.32
• Title of publication: End-member villyaellenite from Mapimi, Durango, Mexico: Descriptive mineralogy, crystal structure, and implications for the ordering of Mn and Ca in type villyaellenite Note: refinition of villyaellenite and introduction of miguelromeroite results in a name change for this structure refinement Locality: Mapimi, Durango, Mexico
• Authors of publication: Kampf, A. R.; Ross, C. R.
• Journal of publication: American Mineralogist
• Year of publication: 1988
• Journal volume: 73
• Pages of publication: 1172 - 1178
• a: 18.015 Å
• b: 9.261 Å
• c: 9.77 Å
• α: 90°
• β: 96.238°
• γ: 90°
• Cell volume: 1620.35 ų
• Number of distinct elements: 6
• Space group number: 15
• Hermann-Mauguin space group symbol: C 1 2/c 1
• Hall space group symbol: -C 2yc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No