Enstatite
Yang H, Ghose S
Physics and Chemistry of Minerals 22 (1995) 300-310
High temperature single crystal X-ray diffraction studies
of the ortho-proto phase transition in enstatite, Mg2Si2O6 at 1360 K
Sample: T = 296 K
_database_code_amcsd 0007919
18.251 8.814 5.181 90 90 90 Pbca
atom     x     y      z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Mg1  .3758 .6537  .8660 .423  .0004  .0015  .0031  .0000 -.0002  .0002
Mg2  .3768 .4869  .3590 .605  .0005  .0022  .0045 -.0001 -.0003  .0002
SiA  .2717 .3415  .0505 .330  .0003  .0012  .0025  .0000  .0000 -.0002
SiB  .4735 .3374  .7983 .320  .0002  .0011  .0027  .0000 -.0001  .0001
O1A  .1834 .3400  .0356 .463  .0003  .0019  .0039  .0000  .0001 -.0001
O1B  .5625 .3403  .8002 .459  .0003  .0019  .0043  .0001  .0000  .0001
O2A  .3108 .5027  .0432 .542  .0005  .0014  .0052 -.0002  .0000 -.0001
O2B  .4327 .4833  .6896 .528  .0005  .0016  .0035  .0002 -.0001  .0005
O3A  .3032 .2226 -.1679 .534  .0004  .0024  .0032  .0000  .0000 -.0010
O3B  .4475 .1955  .6040 .512  .0004  .0019  .0037 -.0001  .0001 -.0006