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Topaz |
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Alberico A, Ferrando S, Ivaldi G, Ferraris G |
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European Journal of Mineralogy 15 (2003) 875-881 |
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X-ray single-crystal structure refinement of an OH-rich topaz from Sulu UHP terrane |
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(Eastern China) - Structural foundation of the correlation between cell parameters |
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and fluorine content |
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Locality: Sulu UHP terrane, Eastern China |
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4.6696 8.8486 8.3915 90 90 90 Pbnm |
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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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Al .90543 .13126 .08148 .00543 .00555 .00531 .00544 .00012 -.00009 -.00012 |
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Si .40000 .94092 1/4 .00471 .00465 .00482 .00467 .00017 0 0 |
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O1 .79373 .53096 1/4 .00619 .00546 .00702 .00610 .00087 0 0 |
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O2 .45186 .75634 1/4 .00619 .00705 .00482 .00668 .00063 0 0 |
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O3 .78824 .01025 .90720 .00607 .00588 .00641 .00590 .00101 -.00124 .00010 |
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F .90221 .75257 .05998 .70 .00823 .00779 .00843 .00846 -.00190 .00054 .00087 |
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O .90221 .75257 .05998 .30 .00823 .00779 .00843 .00846 -.00190 .00054 .00087 |
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H .96 .76 .15 .30 |
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