Information card for entry 9006160

Structure parameters

• Mineral name: Cryolite
• Formula: Al F6 Na3
• Calculated formula: Al F6 Na3
• Title of publication: Ferroelastic phase transition in cryolite, Na3AlF6, a mixed fluoride perovskite: high temperature single crystal X-ray diffraction study and symmetry analysis of the transition mechanism Sample: T = 573 K
• Authors of publication: Yang, H.; Ghose, S.; Hatch, D. M.
• Journal of publication: Physics and Chemistry of Minerals
• Year of publication: 1993
• Journal volume: 19
• Pages of publication: 528 - 544
• a: 5.4766 Å
• b: 5.6227 Å
• c: 7.8461 Å
• α: 90°
• β: 90.089°
• γ: 90°
• Cell volume: 241.607 ų
• Ambient diffraction temperature: 573 K
• Number of distinct elements: 3
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/n 1
• Hall space group symbol: -P 2yn
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No