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American Mineralogist Crystal Structure Database

1 matching records for this search.

Humite
Download hom/humite.pdf 
Ribbe P H, Gibbs G V
Download am/vol56/AM56_1155.pdf 
American Mineralogist 56 (1971) 1155-1173
Crystal structures of the humite minerals: III. Mg/Fe ordering in humite and its
relation to other ferromagnesian silicates
_database_code_amcsd 0000250
4.7408 10.2580 20.8526 90 90 90 Pbnm
atom     x     y     z  occ Biso
Mg1  .0017 .3773 .1767 .943  .50
Fe1  .0017 .3773 .1767 .057  .50
Mg2  .5108 .1540   .25 .943  .50
Fe2  .5108 .1540   .25 .057  .50
Mg3  .0087 .0976 .1092 .943  .50
Fe3  .0087 .0976 .1092 .057  .50
Mg4  .4925 .8665 .0278 .943  .50
Fe4  .4925 .8665 .0278 .057  .50
Si1  .0752 .9691   .25       .27
Si2  .5765 .2819 .1059       .15
O11  .7320 .9679   .25       .57
O12  .2816 .3233   .25       .54
O13  .2198 .0382 .1882       .47
O21  .2368 .2827 .1048       .33
O22  .7805 .9264 .1046       .52
O23  .7225 .2141 .1686       .49
O24  .7261 .2087 .0452       .35
F    .2621 .0328 .0357   .5  .59
OH   .2621 .0328 .0357   .5  .59


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