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, natural
_database_code_amcsd 0001232
18.241 8.804 5.198 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 .955 0.0083 0.0081 0.0072  .0001 -.0008  .0002
Fe1  .3758 .6540 .8650 .045 0.0083 0.0081 0.0072  .0001 -.0008  .0002
Mg2  .3784 .4831 .3584 .833 0.0116 0.0124 0.0090 -.0018 -.0018 -.0005
Fe2  .3784 .4831 .3584 .167 0.0116 0.0124 0.0090 -.0018 -.0018 -.0005
SiA  .2714 .3417 .0472      0.0069 0.0083 0.0072 -.0007  .0004 -.0002
SiB  .4735 .3372 .8017      0.0074 0.0083 0.0079  .0003 -.0004  .0004
O1   .1829 .3392 .0352      0.0077 0.0111 0.0098  .0001  .0003  .0004
O2   .3108 .5033 .0425      0.0109 0.0087 0.0107 -.0012 -.0011  .0008
O3   .3026 .2251 .8254      0.0093 0.0134 0.0091 -.0005  .0005 -.0037
O4   .5630 .3381 .8039      0.0078 0.0109 0.0108  .0001 -.0001  .0002
O5   .4333 .4851 .6913      0.0113 0.0117 0.0112  .0011  .0000  .0019
O6   .4470 .1951 .6057      0.0092 0.0129 0.0126  .0002 -.0006 -.0043