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 = 8.50 GPa
_database_code_amcsd 0003143
9.3836 8.5201 5.1560 90 106.776 90 C2/c
atom     x     y     z Biso
Na2      0  .303   .25  1.2
Cr1      0 .9092   .25  .74
Si   .2936 .0932 .2352  .77
O1   .1136  .079  .138  0.8
O2    .360  .264  .313  1.0
O3    .355  .017  .002  0.7