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, 1050 C, 90 min
_database_code_amcsd 0001241
18.248 8.831 5.189 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 .8665 .960 0.0080 0.0081 0.0076  .0001 -.0007  .0000
Fe1  .3758 .6540 .8665 .040 0.0080 0.0081 0.0076  .0001 -.0007  .0000
Mg2  .3775 .4850 .3598 .869 0.0106 0.0111 0.0089 -.0016 -.0019  .0000
Fe2  .3775 .4850 .3598 .131 0.0106 0.0111 0.0089 -.0016 -.0019  .0000
SiA  .2716 .3415 .0496      0.0064 0.0077 0.0069 -.0005  .0003 -.0001
SiB  .4736 .3372 .7987      0.0063 0.0077 0.0073  .0004 -.0005  .0001
O1   .1834 .3397 .0359      0.0065 0.0099 0.0080  .0001  .0000 -.0002
O2   .3109 .5022 .0441      0.0092 0.0083 0.0097 -.0020 -.0009  .0008
O3   .3028 .2245 .8292      0.0075 0.0119 0.0083  .0007 -.0006 -.0018
O4   .5625 .3393 .8005      0.0065 0.0099 0.0090 -.0003 -.0002  .0002
O5   .4330 .4837 .6903      0.0103 0.0098 0.0102  .0013 -.0005  .0014
O6   .4473 .1959 .6031      0.0093 0.0104 0.0089 -.0001 -.0002 -.0021