Information card for entry 9004055

Structure parameters

• Mineral name: Piergorite-(Ce)
• Formula: Al0.49 B8 Be0.54 Ca8.6 Ce1.1 F0.24 Fe0.35 H1.76 Li0.3 O37.76 Si6 Th0.3 Ti0.16
• Calculated formula: Al0.49 B8 Be0.54 Ca8.6 Ce1.1 F0.24 Fe0.35 H1.76 Li0.3 O37.76 Si6 Th0.3 Ti0.16
• Title of publication: The crystal structure of piergorite-(Ce), Ca8Ce2(Al0.5Fe3+0.5)Sum1(X,Li,Be)2Si6B8O36(OH,F)2: A new borosilicate from Vetralla, Italy, with a modified hellandite-type chain
• Authors of publication: Boiocchi, M.; Callegari, A.; Ottolini, L.
• Journal of publication: American Mineralogist
• Year of publication: 2006
• Journal volume: 91
• Pages of publication: 1170 - 1177
• a: 28.097 Å
• b: 4.777 Å
• c: 10.236 Å
• α: 90°
• β: 96.81°
• γ: 90°
• Cell volume: 1364.18 ų
• Number of distinct elements: 13
• Space group number: 13
• Hermann-Mauguin space group symbol: P 1 2/a 1
• Hall space group symbol: -P 2ya
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No