Guettardite
Makovicky E, Topa D, Tajjedin H, Rastad E, Yaghubpur A
The Canadian Mineralogist 50 (2012) 253-265
The crystal structure of guettardite, PbAsSbS4,
and the twinnite-guettardite problem
Locality: Barika Au-Ag deposit in the Azarbaijan Province, western Iran
_database_code_amcsd 0019213
8.527 7.971 20.102 90 101.814 90 P2_1/c
atom     x     y     z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Pb1  .5174 .0926 .7975 .036   .036   .036   .034   .010   .002   .006
Pb2  .0243 .0854 .8027 .050   .049   .066   .039   .028   .020   .020
As1  .3586 .1708 .9940 .022   .019   .016   .031   .002   .001   .007
As2  .8067 .0063 .3681 .023   .021   .024   .023   .003   .001   .002
Sb1  .9116 .1951 .0256 .025   .029   .018   .028   .002   .006   .001
Sb2  .6597 .0196 .6132 .028   .038   .017   .027   .002   .004  .0004
S1   .1403 .0094 .0764 .020   .022   .015   .023   .007   .005   .009
S2   .7043 .0416 .0840 .024   .035   .017   .023   .003   .013   .006
S3   .5440 .1933 .4419 .032   .035   .020   .044   .002   .015   .012
S4   .4148 .1675 .6574 .019   .018   .018   .022   .009   .004   .007
S5   .1506 .1584 .4531 .034   .030   .015   .068   .002   .023   .016
S6   .2690 .1414 .2817 .021   .025   .019   .020   .005   .007   .006
S7   .9997 .1658 .6597 .022   .029   .019   .018   .000   .006   .012
S8   .7558 .1549 .2686 .024   .027   .017   .030   .005   .010   .001