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 Le4A, 1050 C, 10 min
_database_code_amcsd 0001234
18.243 8.808 5.197 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 .8650 .943 0.0078 0.0093 0.0076  .0001 -.0007  .0000
Fe1  .3758 .6540 .8650 .057 0.0078 0.0093 0.0076  .0001 -.0007  .0000
Mg2  .3784 .4832 .3582 .842 0.0109 0.0140 0.0093 -.0021 -.0018 -.0004
Fe2  .3784 .4832 .3582 .158 0.0109 0.0140 0.0093 -.0021 -.0018 -.0004
SiA  .2714 .3417 .0473      0.0064 0.0093 0.0076 -.0005  .0003 -.0004
SiB  .4735 .3372 .8016      0.0068 0.0094 0.0085  .0001 -.0003  .0002
O1   .1830 .3392 .0348      0.0067 0.0114 0.0108  .0008  .0004  .0003
O2   .3106 .5033 .0419      0.0106 0.0107 0.0108 -.0009 -.0009  .0003
O3   .3026 .2249 .8258      0.0093 0.0150 0.0086 -.0003  .0007 -.0020
O4   .5630 .3384 .8038      0.0079 0.0113 0.0107 -.0002  .0005  .0003
O5   .4334 .4851 .6914      0.0105 0.0130 0.0120  .0005 -.0005  .0022
O6   .4470 .1952 .6063      0.0083 0.0148 0.0130 -.0003 -.0005 -.0047