Ilvaite
Bonazzi P, Bindi L
American Mineralogist 87 (2002) 845-852
Structural properties and heat-induced oxidation-dehydrogenation of
manganoan ilvaite from perda Niedda mine, Sardinia, Italy
Sample: PN6-400, Crystal at room temperature, annealed at 400 C for 48 hrs
_database_code_amcsd 0002849
13.015 8.868 5.842 90 90 90 Pnam
atom      x      y      z occ  Uiso
CaA  .81319 .37053    .75 .98 .0084
MnA  .81319 .37053    .75 .02 .0084
FeM1 .89034 .05046 .00585     .0071
MnM2 .93914 .73861    .25 .72 .0072
FeM2 .93914 .73861    .25 .28 .0072
Si1  .95900 .36670    .25     .0057
Si2  .67995 .22664    .25     .0059
O1    .0096  .0257    .75     .0123
O2    .9367  .2714  .0155     .0085
O3    .7771  .1080    .25     .0086
O4    .6716  .3292  .0186     .0082
O5    .5846  .1022    .25     .0081
O6    .6036  .0211    .75     .0121
O7    .7978  .1101    .75     .0085
H      .740   .071    .75      .018