Pearceite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R050611 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: Freiberg, Germany Sample: 222 Note: mineral name has been changed from arsenpolybasite Note: This is type pearceite-M2a2b2c _database_code_amcsd 0006142 CELL PARAMETERS: 25.8770 15.0050 23.9380 90.000 90.103 90.000 SPACE GROUP: C2/c ATOM X Y Z OCCUPANCY ISO(B) Ag 0.03356 0.14478 0.05354 1.000 3.214 Ag 0.04409 0.36395 0.06653 1.000 3.782 Ag 0.04448 0.62225 0.06430 0.916 4.769 Cu 0.04458 0.62225 0.06430 0.084 4.769 Ag 0.03192 0.85960 0.05493 1.000 3.293 Ag 0.16076 0.00213 0.06933 0.929 3.987 Cu 0.16076 0.00213 0.06933 0.071 3.987 Ag 0.18442 0.49998 0.05078 1.000 2.779 Ag 0.28741 0.10329 0.05266 1.000 3.024 Ag 0.28577 0.37499 0.06294 1.000 3.608 Ag 0.29077 0.63252 0.06172 0.941 4.706 Cu 0.29077 0.63252 0.06172 0.059 4.706 Ag 0.28734 0.89735 0.05653 1.000 3.174 Ag 0.42857 0.25102 0.05590 1.000 3.735 Ag 0.41678 0.74641 0.06010 1.000 5.187 Ag 0.16044 0.00663 0.19801 1.000 3.624 Ag 0.34579 0.02325 0.18229 1.000 6.782 Ag 0.46263 0.00806 0.19693 1.000 3.908 Ag 0.09995 0.19356 0.19867 1.000 3.727 Ag 0.22640 0.17523 0.19588 1.000 3.569 Ag 0.41216 0.20300 0.18558 1.000 4.264 Ag 0.05164 0.37683 0.19673 1.000 3.229 Ag 0.17326 0.37439 0.19283 1.000 3.450 Ag 0.28943 0.36069 0.19433 1.000 3.632 Ag 0.39990 0.41778 0.19354 1.000 4.532 Ag 0.06335 0.63587 0.18914 1.000 4.193 Ag 0.18965 0.63290 0.18610 1.000 5.519 Ag 0.31689 0.60230 0.19004 1.000 5.527 Ag 0.46399 0.59426 0.18455 1.000 5.985 Ag 0.01927 0.90582 0.18457 1.000 4.532 Ag 0.13125 0.81215 0.19650 1.000 4.848 Ag 0.25823 0.84371 0.19034 1.000 6.411 Ag 0.41478 0.80609 0.18661 1.000 4.414 Cu 0.00000 0.23864 0.25000 1.000 1.855 Cu 0.00000 0.75232 0.25000 1.000 2.582 Cu 0.24348 0.50459 0.24966 1.000 1.911 As 0.16645 0.24708 0.04970 0.930 1.540 Sb 0.16645 0.24708 0.04970 0.070 1.540 As 0.16620 0.75572 0.05088 0.931 1.579 Sb 0.16620 0.75572 0.05088 0.069 1.579 As 0.41985 -0.00414 0.05004 0.901 1.563 Sb 0.41985 -0.00414 0.05004 0.099 1.563 As 0.41230 0.49968 0.05034 1.000 1.382 S 0.12189 0.14351 0.09778 1.000 1.824 S 0.13555 0.37008 0.09207 1.000 1.721 S 0.24279 0.23817 0.09531 1.000 1.737 S 0.13607 0.63134 0.09189 1.000 1.848 S 0.12198 0.85957 0.10001 1.000 1.753 S 0.24214 0.75954 0.09680 1.000 1.903 S 0.49319 -0.00210 0.10211 1.000 1.816 S 0.37853 0.11319 0.08794 1.000 1.832 S 0.37997 0.38082 0.09695 1.000 1.942 S 0.49259 0.50245 0.08778 1.000 1.840 S 0.38047 0.61128 0.10335 1.000 1.950 S 0.37612 0.88934 0.09639 1.000 1.942 S 0.23004 -0.00380 -0.00040 1.000 2.850 S 0.49211 0.77300 0.00161 1.000 4.177 S 0.07378 0.01467 0.23222 1.000 2.132 S 0.24874 0.00795 0.16090 1.000 1.800 S 0.00330 0.24723 0.16047 1.000 1.761 S 0.32881 0.22833 0.22997 1.000 2.069 S 0.09980 0.50260 0.23060 1.000 1.998 S 0.24643 0.49580 0.15991 1.000 1.690 S 0.00032 0.74878 0.16020 1.000 1.800 S 0.33248 0.75324 0.23170 1.000 2.298 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 23 +/- 13 +/- 21 MAX. ABS. INTENSITY / VOLUME**2: 40.53449242 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 7.39 37.24 11.9690 0 0 2 13.64 7.44 6.4903 2 2 0 13.69 4.11 6.4692 4 0 0 13.95 1.43 6.3465 -3 1 2 13.97 1.35 6.3376 3 1 2 14.80 6.93 5.9845 0 0 4 15.53 3.65 5.7076 -2 2 2 15.58 1.77 5.6869 4 0 2 19.54 2.51 4.5427 1 3 2 19.59 2.18 4.5315 -5 1 2 20.19 3.19 4.3977 2 2 4 20.20 2.15 4.3970 -4 0 4 23.72 1.49 3.7513 0 4 0 23.80 2.69 3.7391 6 2 0 24.75 3.37 3.5966 5 3 0 24.80 3.23 3.5894 7 1 0 25.03 1.82 3.5573 -5 3 1 25.82 1.91 3.4504 -2 4 2 25.93 1.13 3.4365 7 1 2 27.16 1.47 3.2830 2 4 3 27.18 1.32 3.2804 -5 3 3 27.26 1.62 3.2713 7 1 3 27.49 5.47 3.2451 4 4 0 27.58 2.10 3.2346 8 0 0 28.07 3.59 3.1784 0 4 4 28.12 3.14 3.1732 -6 2 4 28.16 3.42 3.1688 6 2 4 28.49 42.30 3.1328 -4 4 2 28.50 13.39 3.1314 4 4 2 28.57 7.25 3.1240 -8 0 2 28.60 21.03 3.1212 8 0 2 28.92 1.10 3.0873 -2 4 4 29.86 100.00 2.9922 0 0 8 30.33 6.50 2.9471 8 2 1 30.91 13.66 2.8928 -1 5 2 30.91 2.66 2.8925 1 5 2 30.98 13.89 2.8862 -7 3 2 31.01 3.58 2.8842 7 3 2 31.34 37.91 2.8538 -4 4 4 31.37 10.55 2.8516 4 4 4 31.41 5.41 2.8477 -8 0 4 31.46 20.26 2.8434 8 0 4 31.57 2.53 2.8344 3 5 0 31.69 3.43 2.8238 9 1 0 31.83 1.88 2.8112 -6 4 1 32.14 6.79 2.7852 -8 2 3 32.17 10.14 2.7822 8 2 3 32.46 5.05 2.7584 -3 5 2 32.47 1.84 2.7577 3 5 2 32.59 5.64 2.7473 9 1 2 33.58 3.20 2.6685 -6 4 3 33.58 11.56 2.6685 -1 5 4 33.59 13.13 2.6681 1 5 4 33.61 1.49 2.6666 6 4 3 33.64 12.82 2.6640 -7 3 4 33.68 13.71 2.6609 7 3 4 35.02 1.78 2.5622 -3 5 4 35.04 1.49 2.5610 3 5 4 35.12 1.42 2.5556 -9 1 4 35.16 1.21 2.5521 9 1 4 35.54 8.33 2.5259 -8 2 5 35.60 4.47 2.5221 8 2 5 35.65 21.54 2.5186 -4 4 6 35.68 19.25 2.5164 4 4 6 35.70 8.07 2.5148 -8 0 6 35.77 10.63 2.5104 8 0 6 35.91 1.46 2.5008 0 6 0 36.03 5.32 2.4927 9 3 0 36.11 1.58 2.4873 0 6 1 36.23 1.38 2.4797 -9 3 1 36.24 1.73 2.4789 9 3 1 36.71 1.07 2.4480 0 6 2 36.82 1.84 2.4411 -9 3 2 36.84 2.03 2.4396 9 3 2 36.87 1.91 2.4377 -6 4 5 36.91 2.72 2.4352 6 4 5 36.93 1.09 2.4342 -9 1 5 37.38 9.85 2.4055 -2 6 2 37.46 10.08 2.4006 -8 4 2 37.54 10.35 2.3959 10 2 2 37.67 9.66 2.3878 1 5 6 37.76 8.62 2.3822 7 3 6 38.48 7.26 2.3392 0 4 8 38.50 5.16 2.3380 -6 2 8 38.57 6.46 2.3345 6 2 8 38.97 1.16 2.3113 -3 5 6 38.99 4.85 2.3100 3 5 6 39.05 5.22 2.3068 -9 1 6 39.16 1.06 2.3003 -7 1 8 39.19 1.73 2.2988 5 3 8 39.23 1.05 2.2964 7 1 8 39.51 1.33 2.2809 -3 1 10 39.55 1.51 2.2788 3 1 10 40.14 2.18 2.2466 -2 2 10 40.14 1.01 2.2463 -4 0 10 40.16 2.33 2.2452 2 2 10 40.18 4.62 2.2443 -8 2 7 40.19 1.24 2.2437 4 0 10 41.01 6.27 2.2008 -4 4 8 41.05 16.59 2.1988 4 4 8 41.05 8.63 2.1985 -8 0 8 41.13 2.35 2.1946 8 0 8 41.44 1.10 2.1792 6 4 7 41.99 1.44 2.1515 1 3 10 42.45 1.77 2.1293 -6 6 2 42.47 1.35 2.1286 6 6 2 42.62 1.39 2.1214 10 4 1 42.83 1.61 2.1116 1 5 8 42.85 1.24 2.1105 -7 3 8 42.91 1.54 2.1074 7 3 8 43.01 3.35 2.1030 1 7 2 43.15 2.96 2.0964 -11 3 2 43.27 4.28 2.0908 2 6 6 43.36 3.46 2.0870 -10 2 6 43.37 3.47 2.0863 8 4 6 44.05 1.15 2.0555 -9 1 8 44.14 1.04 2.0519 9 1 8 44.55 3.45 2.0340 6 6 4 44.64 1.52 2.0299 -12 0 4 44.92 3.83 2.0179 0 4 10 44.93 4.09 2.0175 -6 2 10 45.00 3.45 2.0146 6 2 10 46.19 1.16 1.9652 -3 7 4 46.27 1.32 1.9622 -9 5 4 47.16 7.41 1.9272 -4 4 10 47.28 4.18 1.9225 8 0 10 47.68 1.76 1.9073 -2 2 12 47.73 1.14 1.9053 4 0 12 47.85 1.56 1.9011 6 6 6 48.32 1.29 1.8834 -1 7 6 48.50 1.60 1.8769 11 3 6 48.54 11.94 1.8756 0 8 0 48.71 20.52 1.8695 12 4 0 48.79 1.48 1.8667 -1 5 10 48.81 1.45 1.8658 -7 3 10 49.17 2.12 1.8530 0 8 2 49.21 1.02 1.8514 11 5 0 49.32 2.19 1.8476 -12 4 2 49.35 2.28 1.8467 12 4 2 49.85 1.32 1.8294 -3 5 10 49.99 1.48 1.8244 9 1 10 52.14 1.04 1.7541 8 2 11 52.20 1.12 1.7524 6 6 8 53.89 1.53 1.7013 -9 7 2 53.93 6.65 1.7001 -4 4 12 54.02 2.55 1.6974 0 8 6 54.05 3.41 1.6965 8 0 12 54.07 1.49 1.6961 15 1 2 54.14 2.53 1.6939 -12 4 6 54.21 2.80 1.6919 12 4 6 55.42 1.21 1.6580 -1 5 12 55.43 1.46 1.6577 1 5 12 55.43 1.28 1.6576 -7 3 12 55.51 1.49 1.6554 7 3 12 57.31 1.48 1.6077 8 8 2 57.49 1.24 1.6031 -16 0 2 58.04 3.04 1.5892 0 8 8 58.14 2.63 1.5866 -12 4 8 58.23 2.54 1.5844 12 4 8 58.45 1.18 1.5790 -9 7 6 59.00 3.85 1.5657 8 8 4 59.15 1.31 1.5620 -16 0 4 61.25 2.14 1.5133 -4 4 14 61.28 2.27 1.5128 -8 0 14 61.30 5.35 1.5122 4 4 14 61.38 1.06 1.5105 8 0 14 61.74 2.10 1.5026 8 8 6 62.03 3.33 1.4961 0 0 16 62.64 1.21 1.4831 1 5 14 62.95 1.07 1.4764 0 8 10 63.04 1.17 1.4745 -12 4 10 63.15 1.34 1.4723 12 4 10 65.40 2.44 1.4269 -8 8 8 65.46 1.34 1.4258 8 8 8 65.67 1.09 1.4217 16 0 8 69.17 1.57 1.3582 4 4 16 75.57 1.99 1.2582 8 8 12 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.