Nuffieldite
Moelo Y, Meerschaut A, Makovicky E
The Canadian Mineralogist 35 (1997) 1497-1508
Refinement of the crystal structure of nuffieldite, Pb2Cu1.4(Pb.4Bi.4Sb.2)Bi2S7:
Structural relationships and genesis of complex lead sulfosalt structures
_database_code_amcsd 0005532
14.4949 21.4195 4.0420 90 90 90 Pbnm
atom     x      y   z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
PbM1 .1558  .1955 .25            .030   .034  .0119  -.009      0      0
BiM2 .3905 .33299 .25           .0174  .0171  .0099  .0022      0      0
PbM3 .6326  .0239 .25            .032   .044  .0250  -.013      0      0
BiM4 .6000  .4709 .25 .39        .022   .026  .0136   .001      0      0
PbM4 .6000  .4709 .25 .37        .022   .026  .0136   .001      0      0
SbM4 .6000  .4709 .25 .24        .022   .026  .0136   .001      0      0
BiM5 .9540 .34229 .25           .0187  .0226  .0103  .0006      0      0
Cu1  .6718  .1722 .25      2.0
Cu2   .281  .0696 .25 .37  1.9
S1   .5186  .2437 .25      1.0
S2   .0067  .1109 .25      1.2
S3   .4429  .0634 .25      1.1
S4   .8006  .2311 .25       .9
S5   .1290  .3708 .25      1.0
S6   .7269  .3879 .25      1.4
S7   .3108  .4709 .25      1.7