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: PN6-675, Crystal at room temperature, annealed at 675 C for 48 hrs
_database_code_amcsd 0002853
12.992 8.869 5.820 90 90 90 Pnam
atom      x      y       z occ  Uiso
CaA  .81901 .37614     .75 .98 .0114
MnA  .81901 .37614     .75 .02 .0114
FeM1 .88846 .05634 -.00567     .0081
MnM2 .92967 .73665     .25 .72 .0097
FeM2 .92967 .73665     .25 .28 .0097
Si1   .9654  .3644     .25     .0080
Si2   .6861  .2343     .25     .0065
O1    .0154  .0212     .75     .0114
O2    .9430  .2687   .0147     .0109
O3    .7838  .1148     .25     .0095
O4    .6761  .3359   .0164     .0103
O5    .5917  .1089     .25     .0107
O6    .5951  .0183     .75     .0182
O7    .8074  .1149     .75     .0110