Forsterite
Brown G E, Prewitt C T
American Mineralogist 58 (1973) 577-587
High-temperature crystal chemistry of hortonolite
sample #12052 at T = 24 C
Note: variety hortonolite
_database_code_amcsd 0000325
4.785 10.298 6.028 90 90 90 Pbnm
atom     x     y     z  occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Si   .4276 .0952   .25       .0027  .0005  .0029  .0001      0      0
Mg1      0     0     0 .675  .0036  .0009  .0026      0 -.0004 -.0004
Fe1      0     0     0 .325  .0036  .0009  .0026      0 -.0004 -.0004
Mg2  .9877 .2783   .25 .705  .0053  .0003  .0028  .0001      0      0
Fe2  .9877 .2783   .25 .285  .0053  .0003  .0028  .0001      0      0
Ca2  .9877 .2783   .25 .010  .0053  .0003  .0028  .0001      0      0
O1   .7659 .0920   .25       .0036  .0009  .0041  .0001      0      0
O2   .2181 .4493   .25       .0057  .0005  .0036  .0002      0      0
O3   .2809 .1637 .0340       .0054  .0011  .0046  .0003 -.0001  .0006