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 = 2.22 GPa
_database_code_amcsd 0003135
9.5173 8.6605 5.2374 90 107.349 90 C2/c
atom     x     y     z Biso
Na2      0 .3005   .25  1.5
Cr1      0 .9079   .25  .78
Si   .2927 .0922 .2344  .92
O1   .1149 .0793  .136  1.0
O2   .3606 .2585  .307  1.1
O3   .3548 .0114  .008  1.1