Information card for entry 9011474

Structure parameters

• Mineral name: Danburite
• Formula: B2 Ca O8 Si2
• Calculated formula: B2 Ca O8 Si2
• Title of publication: Unusual thermal expansion of a B-O-bond in the structure of danburite CaB2Si2O8 Locality: Toroku mine, Miyazaki Prefecture, Japan Note: AnisoB's from ICSD Sample: T = 407 C
• Authors of publication: Sugiyama, K.; Takeuchi, Y.
• Journal of publication: Zeitschrift fur Kristallographie
• Year of publication: 1985
• Journal volume: 173
• Pages of publication: 293 - 304
• a: 8.061 Å
• b: 8.777 Å
• c: 7.745 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 547.97 ų
• Ambient diffraction temperature: 680.15 K
• Number of distinct elements: 4
• Space group number: 62
• Hermann-Mauguin space group symbol: P n a m
• Hall space group symbol: -P 2c 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No