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Esperanzaite |
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Foord E E, Hughes J M, Cureton F E, Maxwell C H, Falster A U, Sommer A J, Hlava P F |
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The Canadian Mineralogist 37 (1999) 67-72 |
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Esperanzaite, NaCa2Al2(AsO4)2F4(OH).2H2O, a new mineral species from |
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the La Esperanza mine, Mexico: Descriptive mineralogy and atomic arrangement |
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Locality: La Esperanza mine, Mexico |
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_database_code_amcsd 0005592 |
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9.687 10.7379 5.5523 90 105.32 90 P2_1/m |
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atom x y z occ Biso |
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As1 .0074 .25 .1397 .67 |
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As2 .54657 .25 .8681 .65 |
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Ca .3555 .4175 .2602 .87 |
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Al -.2436 .4108 .2750 .71 |
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Na .1883 .25 -.2949 .68 1.71 |
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F1 .2191 .4361 -.1665 1.34 |
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F2 .4038 .5319 .6411 1.10 |
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OH .7260 .25 .382 .8 |
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Wat .1511 .5406 .3739 1.13 |
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O1 .1848 .25 .267 1.2 |
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O2 -.0601 .3748 .2470 1.15 |
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O3 .4242 .25 1.030 .8 |
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O4 .4710 .25 .564 1.2 |
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O5 .3476 .6224 .0582 .92 |
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O6 -.0320 .25 -.172 1.4 |
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View JMOL 3-D Structure (permalink) |
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