Information card for entry 9003428

Structure parameters

• Mineral name: Pyroxene-ideal
• Formula: Mg O3 Si
• Calculated formula: Mg O3 Si
• Title of publication: Model pyroxenes II: Structural variation as a function of tetrahedral rotation model orthoenstatite at 1360 K after Yang and Ghose (1995) with O3A-O3A-O3A angle = 163.0, O3B-O3B-O3B angle = 149.5, and model oxygen radius = 1.317
• Authors of publication: Thompson, R. M.; Downs, R. T.
• Journal of publication: American Mineralogist
• Year of publication: 2004
• Journal volume: 89
• Pages of publication: 614 - 628
• a: 18.535 Å
• b: 9.024 Å
• c: 5.21 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 871.424 ų
• Number of distinct elements: 3
• Space group number: 61
• Hermann-Mauguin space group symbol: P b c a
• Hall space group symbol: -P 2ac 2ab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No