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Cumengeite |
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Hawthorne F C, Groat L A |
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Mineralogical Magazine 50 (1986) 157-162 |
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The crystal structure and chemical composition of cumengeite |
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Locality: Boleo, Baja California, Mexico |
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_database_code_amcsd 0014482 |
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15.065 15.065 24.436 90 90 90 I4/mmm |
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atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Pb1 0 0 0 .040 .037 .037 .046 0 0 0 |
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Pb2 0 0 .3199 .046 .044 .044 .051 0 0 0 |
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Pb3 .27634 0 .23459 .039 .039 .037 .039 0 .000 0 |
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Pb4 .19780 .19780 .36453 .038 .038 .038 .038 -.003 -.003 -.002 |
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Pb5 .5 0 .4104 .5 .039 .039 .036 .040 0 0 0 |
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Cu1 .2599 .0962 .0910 .034 .037 .031 .035 .002 .005 .000 |
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Cu2 .2610 .2610 0 .037 .040 .040 .030 0 0 .005 |
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Cl1 .1318 .1318 0 .051 .056 .056 .040 0 0 -.020 |
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Cl2 .3815 .1269 .1786 .045 .043 .051 .042 .006 -.005 -.005 |
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Cl3 0 0 .1187 .047 .041 .041 .058 0 0 0 |
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Cl4 .1696 0 .3765 .061 .060 .036 .086 0 -.020 0 |
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Cl5 .1274 .1274 .2461 .049 .053 .053 .042 .007 .007 .014 |
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Cl6 .3701 0 .5 .072 .042 .034 .139 0 0 0 |
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OH1 .3007 .1762 .4412 .032 .037 .037 .022 -.004 .011 .007 |
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OH2 .1850 .1850 .1275 .038 .044 .044 .027 .003 .003 .004 |
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OH3 .2120 0 .1357 .039 .048 .025 .043 0 -.012 0 |
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OH4 .3272 0 .0571 .037 .037 .035 .038 0 .003 0 |
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