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Talmessite |
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Catti M, Ferraris G, Ivaldi G |
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Bulletin de Mineralogie 100 (1977) 230-236 |
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Hydrogen bonding in the crystalline state. Structure of talmessite, |
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Ca2(Mg,Co)(AsO4)2*2H2O, and crystal chemistry of related minerals |
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Locality: Bou-Azzer, Morocco |
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_database_code_amcsd 0012065 |
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5.874 6.943 5.537 97.3 108.7 108.1 P-1 |
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atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Ca .2949 .7622 .6529 .007042 .007783 .007472 .004324 .004104 -.001003 |
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Mg 0 0 0 .65 .010234 .010786 .012809 .005462 .003532 -.001697 |
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Co 0 0 0 .35 .010234 .010786 .012809 .005462 .003532 -.001697 |
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As .3341 .2460 .6703 .001972 .003984 .003008 .000986 .000955 -.001465 |
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O1 .3420 .1272 .9217 .009577 .008703 .010577 .004476 .005345 .002545 |
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O2 .2385 .0504 .3986 .008356 .009070 .007084 .005310 -.000955 -.004936 |
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O3 .1550 .3916 .6412 .009953 .005516 .013876 .004779 .004677 .000771 |
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O4 .6395 .3864 .7149 .008450 .008641 .014750 .001214 .007159 -.002236 |
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Wat .9533 .2778 .0745 .006572 .006619 .003881 .003414 .002959 -.000154 |
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View JMOL 3-D Structure (permalink) |
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