Enstatite
Nestola F, Tribaudino M
European Journal of Mineralogy 15 (2003) 365-371
The structure of Pbca orthopyroxenes along the join diopside-enstatite (CaMgSi2O6-Mg2Si2O6)
Sample: D7E93
_database_code_amcsd 0006979
18.268 8.836 5.196 90 90 90 Pbca
atom      x      y      z occ Biso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
CaM2 .37693 .48464 .36224 .07 .837  .0098  .0140  .0081  -.0025 -.0015  -.0014
MgM2 .37693 .48464 .36224 .93 .837  .0098  .0140  .0081  -.0025 -.0015  -.0014
MgM1 .37567 .65402 .86809     .579  .0075  .0079  .0066  -.0000 -.0006   .0004
SiTA .27143 .34156 .04927     .476  .0058  .0062  .0061 -.00044 .00063 -.00026
SiTB .47421 .33784 .79691     .475  .0057  .0064  .0059  .00047 .00005  .00038
O1A  .18336 .33982  .0362     .564  .0054  .0081  .0080   .0001  .0005  -.0003
O2A  .31067 .50190  .0439     .654  .0089  .0069  .0090  -.0019 -.0003   .0012
O3A  .30277 .22461  .8285     .726  .0076  .0113  .0087   .0002  .0010  -.0038
O1B  .56275 .34024  .7990     .582  .0057  .0086  .0077  -.0001 -.0002   .0002
O2B  .43344 .48436  .6920     .803  .0112  .0089  .0104   .0034  .0013   .0021
O3B  .44770 .19840  .5986     .704  .0081  .0112  .0074  -.0008  .0000  -.0027