Pyroxene
Molin G M
American Mineralogist 74 (1989) 593-598
Crystal-chemical study of cation disordering in Al-rich and Al-poor
orthopyroxenes from spinel lherzolite xenoliths
sample Le9A, 1150 C, 2 min
_database_code_amcsd 0001242
18.248 8.832 5.192 90 90 90 Pbca
atom     x     y     z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mg1  .3758 .6540 .8666 .957 0.0079 0.0085 0.0074  .0001 -.0007  .0001
Fe1  .3758 .6540 .8666 .043 0.0079 0.0085 0.0074  .0001 -.0007  .0001
Mg2  .3775 .4851 .3601 .868 0.0107 0.0117 0.0087 -.0013 -.0022  .0000
Fe2  .3775 .4851 .3601 .132 0.0107 0.0117 0.0087 -.0013 -.0022  .0000
SiA  .2716 .3414 .0496      0.0063 0.0079 0.0066 -.0006  .0003 -.0001
SiB  .4736 .3372 .7988      0.0065 0.0084 0.0071  .0004 -.0002  .0000
O1   .1833 .3396 .0354      0.0058 0.0102 0.0089  .0001  .0006  .0005
O2   .3109 .5022 .0442      0.0095 0.0086 0.0098 -.0012 -.0007  .0002
O3   .3029 .2244 .8286      0.0079 0.0123 0.0073  .0005 -.0006 -.0024
O4   .5625 .3396 .8006      0.0064 0.0101 0.0090 -.0003  .0006 -.0001
O5   .4331 .4836 .6904      0.0095 0.0098 0.0092  .0012 -.0008  .0000
O6   .4473 .1959 .6028      0.0084 0.0119 0.0091 -.0009  .0007 -.0016