Information card for entry 9003414

Structure parameters

• Mineral name: Pyroxene-ideal
• Formula: Ca Ni O6 Si2
• Calculated formula: Ca Ni O6 Si2
• Title of publication: Model pyroxenes II: Structural variation as a function of tetrahedral rotation model calcium nickel px after Ghose et al. (1987) with O3-O3-O3 angle = 165.2 and model oxygen radius = 1.316
• 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: 9.724 Å
• b: 9.043 Å
• c: 5.221 Å
• α: 90°
• β: 108.5°
• γ: 90°
• Cell volume: 435.379 ų
• Number of distinct elements: 4
• Space group number: 15
• Hermann-Mauguin space group symbol: C 1 2/c 1
• Hall space group symbol: -C 2yc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No