Information card for entry 9000186

Structure parameters

• Mineral name: Piemontite
• Formula: Al1.97 Ca1.87 Fe0.31 H Mn0.72 O13 Si3 Sr0.13
• Calculated formula: Al1.97 Ca1.87 Fe0.31 H Mn0.72 O13 Si3 Sr0.13
• Title of publication: Crystal structure and cation ordering of piemontite
• Authors of publication: Dollase, W. A.
• Journal of publication: American Mineralogist
• Year of publication: 1969
• Journal volume: 54
• Pages of publication: 710 - 717
• a: 8.878 Å
• b: 5.692 Å
• c: 10.201 Å
• α: 90°
• β: 115.4°
• γ: 90°
• Cell volume: 465.663 ų
• Number of distinct elements: 8
• Space group number: 11
• Hermann-Mauguin space group symbol: P 1 21/m 1
• Hall space group symbol: -P 2yb
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No