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Jahnsite-(NaFeMg) |
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Kampf A R, Steele I M, Loomis T A |
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American Mineralogist 93 (2008) 940-945 |
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Jahnsite-(NaFeMg), a new mineral from the Tip Top mine, Custer County, |
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South Dakota: Description and crystal structure |
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Locality: Tip Top mine, Custer County, South Dakota |
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_database_code_amcsd 0004587 |
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15.0811 7.1403 9.8299 90 110.445 90 P2/a |
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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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Na 1/4 .9701 0 .0203 .0204 .0136 .0204 0 -.0012 0 |
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Fe1 1/4 .4713 0 .0083 .0067 .0096 .0088 0 .0031 0 |
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Mg1 1/2 0 1/2 .0125 .0131 .0116 .0116 -.0004 .0027 -.0024 |
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Mg2 1/4 .5057 1/2 .0111 .0124 .0120 .0088 0 .0034 0 |
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Fe2 0 0 0 .0084 .0095 .0062 .0098 -.0000 .0037 -.0006 |
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Fe3 0 1/2 0 .0085 .0080 .0072 .0104 .0001 .0036 .0007 |
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P1 .1870 .2677 .1856 .0089 .0082 .0094 .0085 -.0003 .0023 -.0009 |
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P2 .0800 .7419 .7963 .0093 .0089 .0100 .0091 .0012 .0034 .0007 |
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O1 .2789 .2510 .1489 .0157 .009 .021 .018 .005 .005 .004 |
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O2 .2082 .3103 .3435 .0187 .023 .020 .014 .001 .007 -.001 |
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O3 .1264 .0929 .1411 .0176 .016 .013 .019 -.005 .000 -.001 |
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O4 .1405 .4378 .0810 .0120 .009 .014 .013 .001 .004 .003 |
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O5 .1837 .6682 .8599 .0165 .010 .022 .017 .004 .004 .004 |
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O6 .0574 .7822 .6364 .0149 .020 .013 .011 .001 .005 .003 |
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O7 .0750 .9217 .8777 .0166 .021 .014 .019 -.002 .012 -.003 |
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O8 .0126 .5928 .8173 .0133 .013 .012 .015 -.001 .006 .002 |
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Oh .0274 .7509 .0992 .0140 .017 .010 .017 .001 .008 -.002 |
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OW1 .2272 .7264 .3420 .0270 .033 .027 .025 .010 .015 .006 |
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OW2 .4484 .2126 .3482 .0298 .034 .022 .020 -.003 -.006 .003 |
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OW3 .6269 .9869 .4565 .0285 .024 .026 .039 -.001 .016 -.005 |
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OW4 .3907 .5152 .5161 .0211 .017 .022 .024 -.002 .007 .006 |
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HOh .996 .749 .162 .050 |
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H1a .258 .717 .278 .05 |
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H1b .167 .748 .293 .050 |
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H2a .434 .298 .405 .050 |
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H2b .395 .201 .269 .05 |
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H3a .618 .046 .371 .05 |
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H3b .659 .884 .452 .050 |
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H4a .416 .605 .478 .050 |
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H4b .425 .491 .606 .050 |
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