Ahrensite
Yamanaka T
Physics and Chemistry of Minerals 13 (1986) 227-232
Crystal structures of Ni2SiO4 and Fe2SiO4 as a function of
temperature and heating duration
Sample: T = 400 C
Locality: synthetic
_database_code_amcsd 0007406
8.2644 8.2644 8.2644 90 90 90 Fd3m
atom     x     y     z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Fe    .625  .625  .625 .00529 .00529 .00529 -.00006 -.00006 -.00006
Si       0     0     0 .00476 .00476 .00476       0       0       0
O    .3658 .3658 .3658 .00558 .00558 .00558 -.00011 -.00011 -.00011