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, 10 min
_database_code_amcsd 0001243
18.243 8.834 5.190 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 .960 0.0080 0.0083 0.0070  .0000 -.0007  .0003
Fe1  .3758 .6540 .8666 .040 0.0080 0.0083 0.0070  .0000 -.0007  .0003
Mg2  .3775 .4850 .3600 .869 0.0110 0.0112 0.0085 -.0016 -.0020  .0002
Fe2  .3775 .4850 .3600 .131 0.0110 0.0112 0.0085 -.0016 -.0020  .0002
SiA  .2716 .3415 .0497      0.0063 0.0081 0.0067 -.0006  .0003 -.0002
SiB  .4736 .3372 .7986      0.0062 0.0080 0.0070 -.0001 -.0003  .0000
O1   .1833 .3395 .0358      0.0061 0.0098 0.0087  .0003  .0011 -.0005
O2   .3109 .5022 .0444      0.0095 0.0088 0.0094 -.0014 -.0013  .0008
O3   .3029 .2244 .8289      0.0085 0.0117 0.0069 -.0004  .0001 -.0020
O4   .5624 .3395 .8006      0.0064 0.0099 0.0084 -.0004  .0000  .0008
O5   .4331 .4835 .6905      0.0089 0.0106 0.0089  .0015  .0001  .0011
O6   .4475 .1962 .6029      0.0078 0.0110 0.0091 -.0003 -.0001 -.0024