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Leucostaurite |
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Brugger J, Meisser N, Ansermat S, Krivovichev S V, Kahlenberg V, Belton D, Ryan C G |
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American Mineralogist 97 (2012) 1206-1212 |
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Leucostaurite, Pb2[B5O9]Cl*0.5H2O, from the Atacama Desert: The first Pb-dominant |
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member of the hilgardite group, and micro-determination of boron minerals by PIGE |
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Locality: Mina Asuncion, Atacama Desert, Chile |
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_database_code_amcsd 0019064 |
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11.376 11.505 6.5568 90 90 90 Pnn2 |
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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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Pb1 .0379 .76058 .3457 .0189 .0206 .0240 .0121 .0004 -.0003 .0002 |
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Pb2 .7276 .97810 .5167 .0257 .0334 .0262 .0174 .0034 .0014 .0029 |
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Cl1 .5 0 .780 .036 .023 .035 .050 .004 0 0 |
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Cl2 0 0 .474 .032 .030 .021 .045 -.006 0 0 |
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B1 .820 .735 .641 .013 |
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B2 .741 .531 .517 .010 |
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B3 .988 .753 .869 .010 |
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B4 .712 .321 .503 .012 |
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B5 .710 .713 .315 .015 |
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O1 .944 .728 .691 .022 |
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O2 .761 .625 .690 .022 |
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O3 .811 .766 .432 .010 |
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O4 .714 .583 .343 .023 |
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O5 .919 .793 .019 .020 |
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O6 .764 .822 .777 .014 |
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O7 .776 .229 .597 .015 |
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O8 .608 .760 .419 .017 |
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O9 .740 .434 .597 .022 |
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Wat10 .0 .5 .818 .07 |
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