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 = 5.78 GPa
_database_code_amcsd 0003138
9.4350 8.5780 5.1894 90 107.030 90 C2/c
atom     x     y     z Biso
Na2      0  .303   .25  1.2
Cr1      0 .9091   .25  .76
Si   .2926 .0934 .2344  .64
O1    .114  .082  .137  0.8
O2    .362  .261  .314  0.8
O3    .353 .0162  .004  0.8