Information card for entry 9017371

Structure parameters

• Mineral name: Tridymite
• Formula: O2 Si
• Calculated formula: O16 Si8
• Title of publication: Structural change of orthorhombic-I tridymite with temperature: A study based on second-order thermal-vibrational parameters Note: Dollase's model, T = 733 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: 8.74 Å
• b: 5.04 Å
• c: 8.24 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 362.969 ų
• Ambient diffraction temperature: 733 K
• Number of distinct elements: 2
• Space group number: 20
• Hermann-Mauguin space group symbol: C 2 2 21 (a,b,c+1/4)
• Hall space group symbol: C 2c 2 (x,y,z-1/4)
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No