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Tornebohmite-(Ce) |
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Shen J, Moore P B |
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American Mineralogist 67 (1982) 1021-1028 |
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Tornebohmite, RE2Al(OH)[SiO4]2: Crystal structure and genealogy of |
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RE(III)Si(IV) <---> Ca(II)P(V) isomorphisms |
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7.383 5.673 16.937 90 112.04 90 P2_1/c |
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atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Ce1 .81254 .73320 .45628 0.0105 0.0059 0.0073 0.0000 0.0058 0.0001 |
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Ce2 .21935 .78459 .36951 0.0128 0.0090 0.0115 0.0001 0.0088 -.0002 |
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Si1 .5286 .2507 .4187 0.0097 0.0040 0.0058 0.0010 0.0038 0.0009 |
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Si2 .9312 .2389 .3381 0.0087 0.0048 0.0055 0.0011 0.0032 -.0002 |
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Al .4929 .5008 .2503 0.0077 0.0018 0.0037 0.0003 0.0029 -.0002 |
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O1 .3822 .2133 .4665 0.0345 0.0199 0.0277 0.0096 0.0281 0.0097 |
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O2 .7488 .2851 .4845 0.0150 0.0122 0.0112 -.0034 0.0008 0.0008 |
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O3 .5083 .0120 .3614 0.0131 0.0065 0.0072 0.0003 0.0046 -.0008 |
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O4 .4791 -.5097 .3600 0.0146 0.0060 0.0068 0.0008 0.0049 0.0008 |
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O5 .0406 .1733 .2739 0.0133 0.0141 0.0102 0.0001 0.0071 -.0033 |
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O6 .6939 .2561 .2765 0.0104 0.0066 0.0078 -.0009 0.0042 0.0013 |
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O7 .9988 .4764 .3943 0.0137 0.0046 0.0095 -.0007 0.0042 -.0013 |
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O8 .9811 .0234 .4057 0.0109 0.0077 0.0084 -.0008 0.0017 0.0016 |
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OH .3239 .2450 .2144 0.0088 0.0061 0.0078 0.0012 0.0037 0.0001 |
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