Information card for entry 9003426

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 orthopx with O3A-O3A-O3A angle = 180, O3B-O3B-O3B angle = 180, and model oxygen radius = 1 Note: Atoms Mg, Si, and O are assigned to atomic positions for convenience
• 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: 14.074 Å
• b: 6.928 Å
• c: 4 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 390.019 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