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: PN6-650, Crystal at room temperature, annealed at 650 C for 48 hrs
_database_code_amcsd 0002852
12.983 8.868 5.822 90 90 90 Pnam
atom      x      y       z occ  Uiso
CaA  .81841 .37552     .75 .98 .0108
MnA  .81841 .37552     .75 .02 .0108
FeM1 .88865 .05553 -.00472     .0081
MnM2 .93070 .73692     .25 .72 .0094
FeM2 .93070 .73692     .25 .28 .0094
Si1   .9647  .3644     .25     .0075
Si2   .6853  .2333     .25     .0066
O1    .0149  .0214     .75     .0112
O2    .9423  .2690   .0147     .0103
O3    .7832  .1139     .25     .0092
O4    .6757  .3351   .0168     .0101
O5    .5908  .1083     .25     .0109
O6    .5959  .0184     .75     .0173
O7    .8067  .1147     .75     .0113