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Zanazziite |
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Fanfani L, Nunzi A, Zananni P F, Zanzari A R |
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Tschermaks Mineralogische und Petrographische Mitteilungen 22 (1975) 266-277 |
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The crystal structure of roscherite |
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Locality: Lavra da Ilha, Taquaral, Minas Gerais, Brazil |
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15.874 11.854 6.605 90 95.43 90 C2/c |
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atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Ca 0 .2599 .25 .00069 .00387 .01037 0 .00145 0 |
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Mg .1714 .1630 -.0043 .7 .00054 .00311 .00802 -.00013 .00075 -.00035 |
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Fe .1714 .1630 -.0043 .3 .00054 .00311 .00802 -.00013 .00075 -.00035 |
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Al 0 0 0 .67 .00064 .00445 .01439 .00200 .00129 -.00402 |
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Be .3322 .1772 .3024 .00061 .00348 .00863 -.00013 .00127 -.00042 |
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P1 .1874 .1166 .4777 .00043 .00272 .00694 -.00011 .00083 -.00019 |
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P2 0 .2727 .75 .00045 .00320 .00699 0 .00051 0 |
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O1 .1431 .0023 .5012 .00143 .00328 .00982 -.00064 .00079 .00002 |
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O2 .2816 .0989 .4508 .00064 .00384 .01033 .00016 .00142 .00600 |
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O3 .1442 .1824 .2973 .00068 .00349 .00882 -.00011 .00038 .00034 |
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O4 .1805 .1849 .6754 .00094 .00335 .00859 .00016 .00087 -.00066 |
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O5 .0410 .2006 .9233 .00124 .00431 .00812 .00072 .00052 .00042 |
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O6 .0661 .3496 .6600 .00059 .00393 .01397 .00006 .00148 .00024 |
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OH7 .2999 .1636 .0644 .00074 .00342 .00780 .00001 .00079 -.00062 |
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OH8 0 .0428 .75 .00071 .00435 .04580 0 -.00003 0 |
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Wat9 .0935 .4205 .2200 .00122 .00373 .01244 .00008 .00089 .00006 |
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