Pearceite Bindi L, Evain M, Menchetti S The Canadian Mineralogist 45 (2007) 321-333 Complex twinning, polytypism and disorder phenomena in the crystal structures of antimonpearceite and arsenpolybasite Locality: St. Joachimsthal, Bohemia, Czech Republic Sample: 221 Note: mineral name has been changed from arsenpolybasite Note: this is type pearceite-T2ac _database_code_amcsd 0006141 14.9746 14.9746 11.9982 90 90 120 P321 atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ag1 .36371 .42908 .10401 .0389 .0413 .0360 .0419 .0213 .0095 .0013 Ag2 .09037 .42152 .13506 .813 .0500 .0301 .0439 .0561 .0035 -.0111 .0027 Cu2' .0904 .4215 .1351 .187 .0500 .0301 .0439 .0561 .0035 -.0111 .0027 Ag3 .07803 .15006 .11754 .869 .0569 .0440 .0753 .0617 .0376 .0039 .0053 Cu3' .078 .1501 .1175 .131 .0569 .0440 .0753 .0617 .0376 .0039 .0053 Ag4 .57112 .41821 .11501 .0506 .0427 .0389 .0534 .0079 -.0022 .0038 Ag5 .34634 .54688 .39198 .0446 .0425 .0531 .0407 .0259 -.0029 -.0121 Ag6 .26987 .06958 .39070 .0580 .0954 .0504 .0362 .0424 -.0137 -.0116 Ag7 .13407 .17634 .37296 .0574 .0787 .0273 .0490 .0137 -.0193 -.0020 Ag8 .52522 .16860 .37615 .0695 .1253 .0327 .0400 .0316 -.0082 .0020 Ag9 .10038 .42134 .39254 .0448 .0574 .0471 .0497 .0410 -.0171 -.0108 Ag10 .38282 .30734 .36580 .0875 .1442 .0266 .0342 -.0004 .0055 .0026 Cu1 0 .51201 .5 .0251 .0306 .0300 .0149 .0153 -.0011 -.0006 Cu2 0 0 .5 .0331 .0407 .0407 .0179 .0204 0 0 As1 1/3 2/3 .09980 .0204 .0218 .0218 .0175 .0109 0 0 As2 .33359 .16003 .09832 .0189 .0201 .0195 .0166 .0096 .0007 -.0001 S1 .2715 .5150 .1906 .0238 .0215 .0208 .0303 .0115 .0012 -.0026 S2 -.01023 .2402 .1981 .0264 .0157 .0278 .0301 .0068 -.0012 .0001 S3 .2618 .2468 .1777 .0266 .0281 .0273 .0305 .0184 .0010 .0001 S4 .4839 .2415 .1922 .0267 .0209 .0203 .0369 .0087 -.0037 .0021 S5 .4938 .50125 .32031 .0226 .0301 .0202 .0149 .0106 .0019 -.0006 S6 0 0 .3201 .0237 .0270 .0270 .0171 .0135 0 0 S7 .1953 .3430 .46279 .0274 .0335 .0264 .0256 .0175 -.0029 -.0016 S8 1/3 2/3 .5393 .0306 .0327 .0327 .026 .0163 0 0 S9 .5324 .5324 0 .0529 .0497 .0497 .0270 .001 -.0022 .0022 S10 .0248 .0248 0 1/3 .070 .060 .060 .036 -.010 -.025 .025