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Minamiite |
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Ossaka J, Hirabayashi J, Okada K, Kobayashi R, Hayashi T |
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American Mineralogist 67 (1982) 114-119 |
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Crystal structure of minamiite, a new mineral of the alunite group |
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Note: mineral has been redefined as the 2R polytype of natroalunite |
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_database_code_amcsd 0000857 |
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6.981 6.981 33.490 90 90 120 R-3m |
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atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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S1 0 0 .8458 0.0019 0.0019 0.0111 .00095 0 0 |
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S2 0 0 .3473 0.0110 0.0110 0.0043 0.0055 0 0 |
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Al .5001 -.5001 .2496 0.0053 0.0053 0.0093 0.0029 -.0001 0.0001 |
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O1 0 0 .8022 0.0166 0.0166 0.0076 0.0083 0 0 |
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O2 0 0 .3043 0.0091 0.0091 0.0076 .00455 0 0 |
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O3 .2181 -.2181 .0290 0.0119 0.0119 0.0103 0.0098 0.0010 -.0010 |
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O4 .2183 -.2183 .5274 0.0116 0.0116 0.0105 0.0082 0.0005 -.0005 |
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Oh5 .1268 -.1268 .9294 0.0078 0.0078 0.0145 0.0053 -.0023 0.0023 |
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Oh6 .1239 -.1239 .4321 0.0035 0.0035 0.0174 -.0010 -.0017 0.0017 |
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K 0 0 0 .20 2.4 |
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Na1 0 0 0 .44 2.4 |
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Na2 0 0 .5 .28 1.9 |
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Ca 0 0 .5 .54 1.9 |
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H1 .180 -.180 .9483 3.0 |
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H2 .180 -.180 .4477 3.0 |
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View JMOL 3-D Structure (permalink) |
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