Enstatite
Jacob D, Palatinus L, Cuvillier P, Leroux H, Domeneghetti C, Camara F
American Mineralogist 98 (2013) 1526-1534
Ordering state in orthopyroxene as determined by precession electron diffraction
Locality: Wilson Terrane, North Victoria Land, Antarctica
_database_code_amcsd 0020255
18.3022 8.8816 5.2082 90 90 90 Pbca
atom       x      y      z  occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2)  U(1,3)  U(2,3)
FeM1  .37572 .65432 .87017 .154 .00847  .0099  .0077  .0078  .00003 -.00070  .00040
MgM1  .37572 .65432 .87017 .846 .00847  .0099  .0077  .0078  .00003 -.00070  .00040
MgM2 .377812 .48408 .36400 .561 .01080  .0127  .0106 .00916 -.00117 -.00225  .00010
FeM2 .377812 .48408 .36400 .439 .01080  .0127  .0106 .00916 -.00117 -.00225  .00010
SiA   .27167 .34083 .05061      .00745 .00808  .0071  .0072 -.00058  .00022 -.00014
SiB   .47379 .33676 .79653      .00733  .0078  .0065  .0076  .00023 -.00039  .00021
O1A   .18356 .33892  .0396       .0091  .0087  .0094  .0093  -.0001   .0001   .0002
O1B   .56237 .33840  .7975       .0091  .0087  .0091  .0095   .0004  -.0008   .0001
O2A   .31121 .50097  .0492       .0107  .0121  .0087  .0112  -.0026  -.0011   .0007
O2B   .43345 .48420  .6932       .0109  .0122  .0104  .0101   .0022  -.0002   .0019
O3A   .30276 .22755 -.1731       .0114  .0113  .0133  .0097   .0005   .0003  -.0035
O3B   .44738 .19880  .5977       .0113  .0108  .0122  .0108  -.0013   .0000  -.0030