Information card for entry 9003437

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 hi-P protopx at 9.98 GPa after Yang et al. (1999) with O3A-O3A-O3A angle = 147.8, O3B-O3B-O3B angle = 220.8, and model oxygen radius = 1.307 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: 9.002 Å
• b: 8.698 Å
• c: 5.022 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 393.22 ų
• Number of distinct elements: 3
• Hermann-Mauguin space group symbol: P 21 c n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No