Information card for entry 9017337

Structure parameters

• Mineral name: Tridymite
• Formula: O2 Si
• Calculated formula: O2 Si
• Title of publication: Using powder XRD and pair distribution function to determine anisotropic atomic displacement parameters of orthorhombic tridymite and tetragonal cristobalite
• Authors of publication: Lee, S.; Xu, H.
• Journal of publication: Acta Crystallographica, Section B
• Year of publication: 2019
• Journal volume: 75
• a: 8.7549 Å
• b: 5.0335 Å
• c: 8.2118 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 361.876 ų
• Number of distinct elements: 2
• Space group number: 20
• Hermann-Mauguin space group symbol: C 2 2 21
• Hall space group symbol: C 2c 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No