Information card for entry 9011948

Structure parameters

• Mineral name: Ewaldite
• Formula: C Ba Ca0.48 Ce0.2 K0.11 Na0.15 O3 Sr0.03 U0.02
• Calculated formula: C Ba Ca0.48 Ce0.2 K0.11 Na0.15 O3 Sr0.03 U0.02
• Title of publication: Ewaldite, a new barium calcium carbonate II. Its crystal structure Note: unlocated carbonate group
• Authors of publication: Donnay, G.; Preston, H.
• Journal of publication: Tschermaks Mineralogische und Petrographische Mitteilungen
• Year of publication: 1971
• Journal volume: 15
• Pages of publication: 201 - 212
• a: 5.284 Å
• b: 5.284 Å
• c: 12.78 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 309.02 ų
• Number of distinct elements: 9
• Space group number: 186
• Hermann-Mauguin space group symbol: P 63 m c
• Hall space group symbol: P 6c -2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No