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, natural
_database_code_amcsd 0001238
18.246 8.828 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 .6541 .8666 .972 0.0079 0.0086 0.0065 -.0002 -.0005  .0000
Fe1  .3758 .6541 .8666 .028 0.0079 0.0086 0.0065 -.0002 -.0005  .0000
Mg2  .3775 .4849 .3601 .858 0.0109 0.0112 0.0081 -.0011 -.0015  .0003
Fe2  .3775 .4849 .3601 .142 0.0109 0.0112 0.0081 -.0011 -.0015  .0003
SiA  .2715 .3415 .0496      0.0066 0.0079 0.0065 -.0005  .0002 -.0002
SiB  .4736 .3371 .7988      0.0068 0.0077 0.0067  .0003 -.0004 -.0001
O1   .1833 .3397 .0360      0.0066 0.0095 0.0082 -.0005  .0007  .0000
O2   .3110 .5024 .0447      0.0101 0.0076 0.0078 -.0016 -.0010  .0005
O3   .3028 .2243 .8287      0.0085 0.0110 0.0081  .0003  .0001 -.0024
O4   .5625 .3393 .8006      0.0064 0.0096 0.0081 -.0003 -.0010  .0007
O5   .4331 .4836 .6907      0.0099 0.0105 0.0089  .0020 -.0002  .0002
O6   .4476 .1961 .6031      0.0084 0.0115 0.0083  .0002  .0005 -.0024