Ahrensite
Finger L W, Hazen R M, Yagi T
American Mineralogist 64 (1979) 1002-1009
Crystal structures and electron densities of nickel and iron silicate spinels at
elevated temperature or pressure
Locality: synthetic
_database_code_amcsd 0000748
8.236 8.236 8.236 90 90 90 *Fd3m
.125 .125 .125
atom     x     y     z Biso
Fe      .5    .5    .5 0.40
Si    .125  .125  .125 0.27
O    .2409 .2409 .2409 0.41