Information card for entry 9002341

Structure parameters

• Mineral name: Peprossiite-(Ce)
• Formula: Al2 B4 La0.785 O10.667 Th0.215
• Calculated formula: Al2.00001 B4 La0.785 O10.6667 Th0.215
• Title of publication: The crystal structure of peprossiite-(Ce), and anhydrous REE and Al mica-like borate with square-pyramidal coordination for Al Sample: Pep2
• Authors of publication: Callegari, A.; Caucia, F.; Mazzi, F.; Oberti, R.; Ottolini, L.; Ungaretti, L.
• Journal of publication: American Mineralogist
• Year of publication: 2000
• Journal volume: 85
• Pages of publication: 586 - 593
• a: 4.596 Å
• b: 4.596 Å
• c: 9.309 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 170.292 ų
• Number of distinct elements: 5
• Space group number: 189
• Hermann-Mauguin space group symbol: P -6 2 m
• Hall space group symbol: P -6 -2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No