Information card for entry 8104538

Structure parameters

• Common name: tridymite
• Mineral name: tridymite OC at 693 K
• Formula: O2 Si
• Calculated formula: O2 Si
• Title of publication: Structural change of orthorhombic-I tridymite with temperature: A study based on second-order thermal-vibrational parameters : structure at 693 K
• Authors of publication: Kihara, K.; Matsumoto, T.; Imamura, M.
• Journal of publication: Zeitschrift fur Kristallographie
• Year of publication: 1986
• Journal volume: 177
• Pages of publication: 27 - 38
• a: 8.742 ± 0.008 Å
• b: 5.047 ± 0.004 Å
• c: 8.262 ± 0.005 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 364.5 ± 0.5 ų
• Ambient diffraction temperature: 693 K
• 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