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Lukechangite-(Ce) |
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Grice J D, Chao G Y |
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American Mineralogist 82 (1997) 1255-1260 |
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Lukechangite-(Ce), a new rare-earth-fluorocarbonate mineral from |
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Mont Saint-Hilaire, Quebec |
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Note: U(1,2) for Na1, O1, O2 and F changed to match symmetry constraints. |
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Note: U(2,3) for O2 changed to match symmetry constraints. |
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_database_code_amcsd 0001952 |
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5.0612 5.0612 22.820 90 90 120 P6_3/mmc |
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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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Nal 1/3 2/3 .4777 .0265 .0265 .0239 .01325 0 0 |
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Na2 0 0 .25 .0276 .0276 .0083 .0138 0 0 |
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Ce 2/3 1/3 .35447 .0092 .0092 .0047 .0046 0 0 |
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C1 0 0 .4358 .0123 .0123 .0121 .0061 0 0 |
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C2 1/3 2/3 .3239 .0098 .0098 .0074 .0049 0 0 |
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O1 .2896 .1448 .4375 .0127 .0783 .0116 .00635 .0002 .0001 |
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O2 .18705 .3741 .3241 .0159 .0105 .0198 .00525 -.0005 -.0010 |
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F 2/3 1/3 .25 .0277 .0277 .0117 .01385 0 0 |
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