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