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Calcioaravaipaite |
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Kampf A R, Merlino S, Pasero M |
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American Mineralogist 88 (2003) 430-435 |
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Order-disorder approach to calcioaravaipaite, [PbCa2Al(F,OH)9]: |
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The crystal structure of the triclinic MDO polytype |
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7.722 7.516 12.206 98.86 96.91 90.00 C-1 |
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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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Pb1 .74457 .52709 .10749 .0202 .0207 .0218 .0185 .0001 .0041 .0027 |
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Ca1 .3925 .6497 .6144 .0120 .0105 .0102 .0160 .0001 .0030 .0028 |
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Ca2 .8932 .6576 .6137 .0118 .0115 .0082 .0155 -.0009 .0017 .0013 |
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Al1 .2511 .5453 .1813 .0142 .013 .014 .018 -.0003 .003 .005 |
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F1 .0673 .5655 .2648 .017 .013 .020 .020 -.004 .006 .004 |
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F2 .8449 .8984 .2749 .021 .018 .028 .020 .003 .004 .005 |
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F3 .1484 .6981 .0948 .030 .016 .015 .023 .000 .002 -.006 |
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F4 .4319 .5265 .1002 .022 .030 .025 .035 .004 -.002 .013 |
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F5 .6474 .8513 .0930 .027 .013 .009 .014 -.001 .002 -.001 |
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F6 .3443 .7371 .2768 .019 .016 .010 .015 .002 .004 .000 |
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F7 .1273 .6210 .4991 .012 .019 .022 .027 .007 .004 .013 |
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F8 .6201 .6304 .5053 .014 .027 .015 .020 -.003 .004 .003 |
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F9 .6854 .5714 .2905 .021 .028 .021 .029 -.008 -.004 -.002 |
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