Information card for entry 9012872

Structure parameters

• Mineral name: Graeserite
• Formula: As Fe4 H O14 Pb0.14 Ti3
• Calculated formula: As Fe3.9998 H O14 Pb0.14 Ti3.0002
• Title of publication: The crystal structure of Pb2±bearing graeserite, Pb0.14(Fe,Ti)7AsO12+x(OH)2-x, a mineral of the derbylite group Locality: Gorb, Binn valley, Western Alps, Switzerland
• Authors of publication: Berlepsch, P.; Armbruster, T.
• Journal of publication: Schweizerische Mineralogische und Petrographische Mitteilungen
• Year of publication: 1998
• Journal volume: 78
• Pages of publication: 1 - 9
• a: 5.0053 Å
• b: 14.272 Å
• c: 7.1736 Å
• α: 90°
• β: 105.165°
• γ: 90°
• Cell volume: 494.605 ų
• Number of distinct elements: 6
• 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