Information card for entry 9016899

Structure parameters

• Mineral name: Dumortierite
• Formula: Al6.692 B O18 Si2.943
• Calculated formula: Al26.768 B4 O72 Si11.772
• Title of publication: MAS NMR measurements and ab initio calculations of the 29Si chemical shifts in dumortierite and holtite
• Authors of publication: Evans, R. J.; Fyfe, C. A.; Groat, L. A.; Lam, A. E.
• Journal of publication: American Mineralogist
• Year of publication: 2012
• Journal volume: 97
• Pages of publication: 329 - 340
• a: 4.6882 Å
• b: 11.7924 Å
• c: 20.1856 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1115.96 ų
• Number of distinct elements: 4
• Space group number: 62
• Hermann-Mauguin space group symbol: P n m a
• Hall space group symbol: -P 2ac 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No