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Lemmleinite-K |
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Rastsvetaeva R K, Arakcheeva A V, Khomyakov A P |
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Doklady Chemistry 351 (1996) 294-297 |
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Crystal structure and microtwinning of a new monoclinic analog of |
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nenadkevichite |
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Locality: Khibiny alkaline massif, Kola Peninsula, Russia |
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14.39 13.900 7.825 90 117.6 90 C2/m |
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atom x y z occ Biso |
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Na .4083 .2647 .000 .43 3.3 |
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K1 .0842 0 .3365 .95 2.6 |
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K2 .4159 0 .7012 .80 3.3 |
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TiM1 0 .2244 .5 .7 1.47 |
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NbM1 0 .2244 .5 .3 1.47 |
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TiM2 .25 .25 .5 .7 1.51 |
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NbM2 .25 .25 .5 .3 1.51 |
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Si1 .2086 .1096 .8015 .81 |
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Si2 .3232 .1101 .2525 .85 |
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O1 .2391 .1244 .027 1.4 |
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O2 .2728 .1798 .734 1.1 |
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O3 .1008 .2244 .396 .7 .9 |
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OH3 .1008 .2244 .396 .3 .9 |
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O4 .2358 0 .768 1.5 |
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O5 .4229 .1767 .304 1.7 |
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O6 .2667 .1284 .386 1.2 |
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O7 .3683 0 .282 1.3 |
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O8 .0830 .1237 .681 1.5 |
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Wat1 .5 .142 0 .90 8.8 |
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Wat2 0 .126 0 .88 10.9 |
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