Kosmochlor
Origlieri M J, Downs R T, Thompson R M, Pommier C J S, Denton M B, Harlow G E
American Mineralogist 88 (2003) 1025-1032
High-pressure crystal structure of kosmochlor, NaCrSi2O6, and systematics of
anisotropic compression in pyroxenes
Sample: P = 9.28 GPa
_database_code_amcsd 0003145
9.3694 8.5028 5.1456 90 106.717 90 C2/c
atom     x     y     z Biso
Na2      0 .3044   .25  1.2
Cr1      0 .9094   .25  .70
Si   .2935 .0933 .2363  .72
O1   .1142  .081  .138  0.7
O2   .3585  .264  .314  0.9
O3   .3560 .0184  .000  0.7