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: D4En96
_database_code_amcsd 0006978
18.262 8.826 5.192 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 .37699 .48508  .3610 .04  .64  .0083  .0111  .0052 -.0019 -.0014 -.0010
MgM2 .37699 .48508  .3610 .96  .64  .0083  .0111  .0052 -.0019 -.0014 -.0010
MgM1 .37567 .65400  .8670      .46  .0065  .0070  .0043  .0000 -.0004  .0002
SiTA .27150 .34160 .04923      .36  .0044  .0056  .0036 -.0004  .0004 -.0001
SiTB .47405 .33774 .79770      .37  .0045  .0058  .0036  .0002 -.0002  .0003
O1A  .18335  .3400  .0353      .42  .0042  .0076  .0042  .0001  .0003  .0006
O2A  .31062  .5024  .0437      .55  .0078  .0070  .0059 -.0013 -.0002  .0009
O3A  .30274  .2240  .8283      .57  .0062  .0098  .0055 -.0000  .0001 -.0029
O1B  .56272  .3402  .7996      .47  .0040  .0085  .0054 -.0008 -.0011  .0002
O2B  .43341  .4842  .6915      .62  .0080  .0087  .0070  .0026  .0007  .0021
O3B  .44770  .1973  .6008      .58  .0064  .0104  .0051 -.0011  .0004 -.0028