Pearceite
Bindi L, Evain M, Menchetti S
Acta Crystallographica B62 (2006) 212-219
Temperature dependence of the silver distribution in the
crystal structure of natural pearceite, (Ag,Cu)16(As,Sb)2S11
Sample: T = 15 K
Locality: Clara mine, Black Forest, Germany
_database_code_amcsd 0009933
7.3890 7.3890 11.816 90 90 120 P-3m1
atom       x       y       z   occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
As       1/3     2/3  .40976  .596 .0144  .0148  .0148  .0138  .0074      0      0
Sb       1/3     2/3 .409764  .404 .0144  .0148  .0148  .0138  .0074      0      0
Ag1    .2989  .14946  .38540  .538 .0301  .0418  .0237  .0310  .0209 -.0223 -.0112
Cu1  .298921 .149461 .385401  .462 .0301  .0418  .0237  .0310  .0209 -.0223 -.0112
Ag2    .3606   .2215   .1239  .152 .0175
Ag3    .3341   .3675   .1109  .225 .0346
Ag4    .4475   .5525   .1133 .1057  .069   .084   .084   .020   .027  -.012   .012
Ag5    .3568   .2954   .1228  .102 .0162
Ag6     .251   .3821   .1211  .218  .050   .095  .0240  .0192  .0223  -.020 -.0039
Cu2        0       0       0       .0195  .0252  .0252  .0082  .0126      0      0
S1         0       0   .1829       .0208  .0251  .0251  .0123  .0125      0      0
S2     .0152  .50762  .31195       .0204  .0175  .0199  .0230  .0087  .0022  .0011
S3       2/3     1/3   .0210       .0358  .0409  .0409  .0254  .0205      0      0
S4     .0861       0      .5   1/6  .018   .015   .029   .014   .014  .0000   .000