Thompson R M, Downs R T
American Mineralogist 89 (2004) 614-628
Model pyroxenes II: Structural variation as a function of tetrahedral rotation
model calcium cobalt px after Ghose et al. (1987)
with O3-O3-O3 angle = 165.1 and model oxygen radius = 1.325
_database_code_amcsd 0003504
9.785 9.100 5.254 90 108.5 90 C2/c
atom x y z
Co 0 11/12 1/4
Ca 0 .25 1/4
Si .3083 1/12 .2655
O1 .1334 1/12 .1622
O2 .3666 .25 .3378
O3 .3666 .0189 .0310
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