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Roggianite |
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Giuseppetti G, Mazzi F, Tadini C, Galli E |
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Neues Jahrbuch fur Mineralogie, Monatshefte 1991 (1991) 307-314 |
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The revised crystal structure of roggianite: Ca2[Be(OH)2Al2Si4O13]<2.5H2O |
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Locality: Val Vigezzo, Novara, Italy |
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_database_code_amcsd 0014856 |
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18.33 18.33 9.16 90 90 90 I4/mcm |
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atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Ca .1769 .1769 .25 .017 .0196 .0196 .0114 -.0070 .0030 -.0030 |
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Be .2619 .2381 0 .018 .0169 .0169 .0216 -.0009 0 0 |
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O6 .2935 .2065 .1512 .017 .0181 .01818 .0146 .0044 -.0027 0.0027 |
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H1 .324 .176 .145 .03 |
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Al .2177 0 .25 .011 .0142 .0109 .0064 0 0 -.0016 |
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Si1 .1044 .2810 0 .012 .0140 .01385 .0075 -.0029 0 0 |
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Si2 .1159 .0408 0 .010 .0122 .0101 .0083 -.0005 0 0 |
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O1 .1353 .3647 0 .016 .0140 .0140 .0192 -.0062 0 0 |
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O2 .1641 .0579 .1457 .016 .0226 .0140 .0113 -.0004 .0034 -.0019 |
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O3 .0579 .2673 .1461 .022 .0288 .0240 .0133 -.0126 .0077 -.0022 |
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O4 .0451 .0936 0 .021 .0190 .0233 .0201 .0043 0 0 |
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O5 .1725 .2246 0 .015 .0169 .0149 .0143 -.0034 0 0 |
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Wat1 .409 .091 .154 .49 .14 |
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Wat2 .375 .079 0 .27 .13 |
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Wat3 .445 .055 .264 .41 .22 |
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View JMOL 3-D Structure (permalink) |
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