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Hilairite-(Ba) |
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Zubkova N V, Kolitsch U, Pekov I V, Turchkova A G, Vigasina M F, Pushcharovsky D Y, Tillmanns E |
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European Journal of Mineralogy 21 (2009) 495-506 |
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Crystal chemistry of Rb-, Sr-, Ba-, Ca- and Pb-exchanged forms of natural hilairite |
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Locality: Kirovskii mine, Khibiny alkaline complex, Kola Peninsula, Russia |
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Note: sample was synthesized by cation exchange at 150 C |
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_database_code_amcsd 0007283 |
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20.976 20.976 7.857 90 90 120 R3 |
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atom x y z occ Uiso |
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Ba1 .82788 .65729 .21606 .981 .0363 |
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Ba2 1/3 2/3 .22359 .888 .0415 |
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Zr1 0 0 .04324 .0103 |
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Zr2 .50167 .49847 .05010 .01048 |
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Si1 .67151 .62881 -.0854 .0182 |
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Si2 .53776 .36444 .1893 .0186 |
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Si3 .32781 .4561 .1793 .0299 |
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Si4 .38388 .54418 -.1438 .0193 |
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O1 .5992 .5513 -.0868 .0255 |
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O2 .5464 .5834 .2222 .028 |
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O3 .6837 .6671 .0998 .035 |
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O4 .6158 .3712 .2147 .028 |
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O5 .3445 .5121 .3365 .0339 |
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O6 .5339 .4418 .2033 .0264 |
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O7 .4813 .3134 .3367 .0195 |
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O8 .2544 .3827 .2013 .0302 |
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O9 .3239 .4970 .0022 .0357 |
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O10 .4010 .4477 .1735 .0292 |
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O11 .4601 .5487 -.1112 .0252 |
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O12 .3817 .6229 -.1456 .050 |
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Wat1 .8326 .7871 .2289 .0345 |
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Wat2 .6972 .5293 .2186 .045 |
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Wat3 .4609 .6694 .2128 .058 |
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Wat4 .9668 .6748 .1892 .048 |
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