Orthopyroxene
Domeneghetti M C, Tazzoli V, Ballaran T B, Molin G M
American Mineralogist 81 (1996) 842-846
Orthopyroxene from the Serra de Mage meteorite: A structure-refinement procedure
for a Pbca phase coexisting with a C2/c exsolved phase
Sample Opx SDM N.13, natural
_database_code_amcsd 0001805
18.316 8.907 5.218 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)
SiA  .22851 .65945  .5520 .993  .0066  .0063  .0034 -.0006 -.0004  .0003
AlA  .22851 .65945  .5520 .014  .0066  .0063  .0034 -.0006 -.0004  .0003
SiB  .47401 .33650  .7950 .993  .0064  .0058  .0031  .0002 -.0004 -.0001
AlB  .47401 .33650  .7950 .014  .0064  .0058  .0031  .0002 -.0004 -.0001
O1A   .3161  .8380  .0440       .0077  .0086  .0043 -.0002  .0003  .0001
O1B   .5625  .3370  .7957       .0057  .0088  .0045 -.0001 -.0018  .0011
O2A   .3111  .5003  .0539       .0098  .0081  .0067 -.0016 -.0028  .0004
O2B   .4341  .4852  .6976       .0112  .0087  .0071  .0017  .0004  .0017
O3A   .1976  .7686  .3243       .0096  .0124  .0061  .0016 -.0003  .0035
O3B   .4473  .2022  .5935       .0105  .0113  .0067 -.0006 -.0006 -.0030
Mg1  .37537 .65467  .8743 .897  .0084  .0071  .0035 -.0001 -.0006  .0003
Fe1  .37537 .65467  .8743 .091  .0084  .0071  .0035 -.0001 -.0006  .0003
Mn1  .37537 .65467  .8743 .003  .0084  .0071  .0035 -.0001 -.0006  .0003
Cr1  .37537 .65467  .8743 .004  .0084  .0071  .0035 -.0001 -.0006  .0003
Ti1  .37537 .65467  .8743 .005  .0084  .0071  .0035 -.0001 -.0006  .0003
Mg2  .37799 .48326 .36791 .237  .0103  .0096  .0042 -.0012 -.0022  .0000
Fe2  .37799 .48326 .36791 .704  .0103  .0096  .0042 -.0012 -.0022  .0000
Mn2  .37799 .48326 .36791 .023  .0103  .0096  .0042 -.0012 -.0022  .0000
Ca2  .37799 .48326 .36791 .036  .0103  .0096  .0042 -.0012 -.0022  .0000