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Brassite |
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Protas J, Gindt R |
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Acta Crystallographica B32 (1976) 1460-1466 |
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Structure cristalline de la brassite, MgHAsO4*4H2O, produit de deshydratation |
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de la roesslerite |
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Locality: synthetic |
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_database_code_amcsd 0009557 |
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7.472 10.891 16.5850 90 90 90 Pbca |
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atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Mg .2941 .4715 .3468 .00410 .00235 .00096 -.00059 .00038 -.00002 |
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As -.0009 .2067 .0990 .00311 .00197 .00079 -.00022 .00034 .00005 |
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O1 .4121 .3030 -.0065 .00823 .00435 .00059 -.00166 .00038 .00012 |
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OH2 .2219 .1623 .0877 .00602 .00480 .00158 -.00135 -.00028 .00032 |
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O3 .0017 .3485 .1371 .00567 .00175 .00188 .00104 -.00004 .00014 |
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O4 .4121 .1017 .3389 .00645 .00313 .00107 -.00026 -.00016 -.00006 |
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Wat1 .5150 .1058 .1869 .00547 .00243 .00158 .00012 .00033 -.00013 |
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Wat2 .2776 .4276 .2256 .00897 .00436 .00163 -.00008 -.00101 -.00002 |
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Wat3 .0954 .3424 .3697 .00719 .00400 .00182 -.00028 .00026 -.00015 |
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Wat4 .1750 .0193 .4669 .00926 .00293 .00160 .00272 -.00080 .00005 |
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