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Franconite |
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Haring M M M, McDonald A M |
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Mineralogical Magazine 78 (2014) 591-607 |
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Franconite, NaNb2O5(OH)*3H2O: structure determination and the role of H bonding, |
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with comments on the crystal chemistry of franconite-related minerals |
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Locality: Poudrette quarry, Quebec, Canada |
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_database_code_amcsd 0020435 |
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10.119 6.436 12.682 90 99.91 90 P2_1/c |
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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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Na1 .5288 .2454 .3395 .73 .0304 .032 .030 .030 .002 .008 .001 |
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Ca1 .5288 .2454 .3395 .13 .0304 .032 .030 .030 .002 .008 .001 |
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Nb1 .16333 .2742 .40382 .98 .0120 .0198 .0071 .0099 .0001 .0043 .0003 |
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Ti1 .16333 .2742 .40382 .01 .0120 .0198 .0071 .0099 .0001 .0043 .0003 |
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Si1 .16333 .2742 .40382 .01 .0120 .0198 .0071 .0099 .0001 .0043 .0003 |
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Al1 .16333 .2742 .40382 .005 .0120 .0198 .0071 .0099 .0001 .0043 .0003 |
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Nb2 -.00108 .18674 .60733 .98 .0119 .0228 .0057 .0076 .0001 .0045 -.0006 |
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Ti2 -.00108 .18674 .60733 .01 .0119 .0228 .0057 .0076 .0001 .0045 -.0006 |
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Si2 -.00108 .18674 .60733 .01 .0119 .0228 .0057 .0076 .0001 .0045 -.0006 |
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Al2 -.00108 .18674 .60733 .005 .0119 .0228 .0057 .0076 .0001 .0045 -.0006 |
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O1 .1710 .2516 .5586 .0147 .021 .011 .012 .000 .003 .001 |
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O2 -.1673 .0287 .6170 .0160 .025 .011 .014 .001 .007 .000 |
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O3 .0729 .1963 .7489 .0191 .035 .014 .009 -.001 .004 .000 |
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O4 -.0845 .4391 .5862 .0179 .032 .006 .016 .003 .007 .000 |
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O5 .3290 .3395 .3959 .0223 .024 .022 .022 -.001 .010 -.003 |
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O6 .0483 -.1383 .5714 .0134 .021 .008 .011 .001 .002 -.003 |
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Ow7 .7421 .3854 .3178 .028 .035 .026 .024 -.008 .009 .001 |
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Ow8 .6084 .2536 .5286 .031 .031 .030 .031 .002 .001 -.001 |
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Ow9 .4335 .378 .1641 .037 .035 .037 .037 -.006 .002 .003 |
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H1 .124 -.20 .619 .01 |
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H2 .78 .50 .364 .07 |
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H3 .78 .41 .254 .07 |
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H4 .60 .395 .553 .06 |
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H5 .68 .17 .57 .11 |
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H6 .347 .32 .133 .02 |
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H7 .511 .37 .128 .08 |
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