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Fluornatrocoulsellite |
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Mumme W G, Grey I E, Birch W D, Pring A, Bougerol C, Wilson N C |
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American Mineralogist 95 (2010) 736-740 |
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Coulsellite, CaNa3AlMg3F14, a rhombohedral pyrochlore with 1:3 ordering |
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in both A and B sites, from the Cleveland mine, Tasmania, Australia |
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Locality: Cleveland tin mine, Luina, western Tasmania |
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_database_code_amcsd 0020643 |
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7.1756 7.1756 7.1756 59.867 59.867 59.867 R-3m |
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atom x y z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Ca 0 0 0 .0129 .0137 .0137 .0137 -.0051 -.0051 -.0051 |
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Na .5 0 0 .0194 .0098 .0251 .0251 -.0039 -.0039 -.0134 |
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Al .5 .5 .5 .0068 .0071 .0071 .0071 -.0026 -.0026 -.0026 |
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Mg .5 .5 0 .0067 .0068 .0068 .0056 -.0023 -.0017 -.0017 |
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F1 .1710 .1710 .5778 .0118 .0094 .0094 .0145 -.0006 -.0045 -.0045 |
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F2 .4371 .4371 .8007 .0124 .0154 .0154 .0086 -.0055 -.0045 -.0045 |
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F3 .1246 .1246 .1246 .0117 .0116 .0116 .0116 -.0038 -.0038 -.0038 |
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Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
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