Guanacoite Witzke T, Kolitsch U, Krause W, Wiechowski A, Medenbach O, Kampf A R, Steele I M, Favreau G European Journal of Mineralogy 18 (2006) 813-821 Guanacoite, Cu2Mg2(Mg0.5Cu0.5)(OH)4(H2O)4(AsO4)2, a new arsenate mineral species from the El Guanaco Mine, near Taltal, Chile: Description and crystal structure Locality: El Guanaco Mine, Taltal, Chile _database_code_amcsd 0007188 CELL PARAMETERS: 5.4750 16.8650 6.9150 90.000 99.800 90.000 SPACE GROUP: P2_1/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 629.185 Density (g/cm3): 3.382 MAX. ABS. INTENSITY / VOLUME**2: 18.29616451 RIR: 1.762 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 10.49 100.00 8.4325 0 2 0 2 14.02 3.12 6.3179 0 1 1 4 16.43 37.68 5.3951 1 0 0 2 17.26 17.10 5.1386 1 1 0 4 19.53 7.73 4.5446 1 2 0 4 19.88 17.21 4.4655 -1 1 1 4 20.48 37.87 4.3364 0 3 1 4 21.07 24.84 4.2162 0 4 0 2 22.85 13.50 3.8925 1 3 0 4 23.31 3.08 3.8161 1 1 1 4 24.83 14.23 3.5854 0 4 1 4 24.91 2.46 3.5743 -1 3 1 4 25.06 14.71 3.5530 1 2 1 4 26.16 21.19 3.4070 0 0 2 2 26.69 10.37 3.3396 0 1 2 4 26.84 13.78 3.3221 1 4 0 4 27.76 8.86 3.2142 1 3 1 4 28.63 9.59 3.1176 -1 4 1 4 29.00 28.33 3.0788 -1 1 2 4 29.55 18.40 3.0229 0 5 1 4 30.45 13.79 2.9355 -1 2 2 4 30.68 34.98 2.9137 0 3 2 4 31.16 5.03 2.8700 1 4 1 4 31.27 2.50 2.8600 1 5 0 4 31.84 2.65 2.8108 0 6 0 2 32.74 35.35 2.7356 -1 3 2 4 32.85 10.26 2.7264 -1 5 1 4 33.21 12.38 2.6976 2 0 0 2 33.41 25.07 2.6820 1 0 2 2 33.65 18.87 2.6637 2 1 0 4 33.84 1.99 2.6487 1 1 2 4 34.02 1.87 2.6356 -2 1 1 4 34.52 10.18 2.5984 0 6 1 4 34.92 6.19 2.5693 2 2 0 4 35.11 6.17 2.5561 1 5 1 4 35.11 1.09 2.5558 1 2 2 4 35.28 1.30 2.5441 -2 2 1 4 35.72 4.95 2.5139 -1 4 2 4 36.03 11.97 2.4928 1 6 0 4 36.96 3.96 2.4320 2 3 0 4 37.14 1.00 2.4206 1 3 2 4 37.30 4.86 2.4106 -2 3 1 4 37.43 2.39 2.4028 -1 6 1 4 38.29 7.29 2.3505 2 1 1 4 39.28 3.81 2.2939 -2 1 2 4 39.44 2.63 2.2849 2 2 1 4 39.46 22.60 2.2838 1 6 1 4 39.68 1.94 2.2715 0 7 1 4 39.84 3.66 2.2630 1 4 2 4 39.99 6.14 2.2548 -2 4 1 4 40.75 17.76 2.2144 -1 1 3 4 41.03 1.08 2.1999 1 7 0 4 41.29 3.14 2.1868 2 3 1 4 41.66 1.40 2.1682 0 6 2 4 41.83 1.30 2.1593 -1 2 3 4 42.21 5.67 2.1409 -2 3 2 4 42.29 2.34 2.1373 -1 7 1 4 42.90 2.58 2.1081 0 8 0 2 42.95 2.79 2.1060 0 3 3 4 43.23 3.23 2.0927 -2 5 1 4 43.60 2.80 2.0759 -1 3 3 4 43.77 6.90 2.0684 2 4 1 4 44.65 1.44 2.0295 -2 4 2 4 45.01 1.70 2.0139 0 8 1 4 45.98 1.95 1.9739 -1 4 3 4 46.23 10.08 1.9635 1 8 0 4 46.25 1.73 1.9631 1 1 3 4 46.35 3.05 1.9589 2 0 2 2 46.68 3.94 1.9458 2 1 2 4 47.62 1.56 1.9095 -1 7 2 4 47.64 2.07 1.9089 -2 5 2 4 48.31 1.45 1.8840 0 5 3 4 48.84 1.93 1.8647 1 3 3 4 49.04 6.02 1.8577 -2 2 3 4 49.07 1.02 1.8564 1 8 1 4 50.31 2.19 1.8135 2 6 1 4 50.51 2.38 1.8068 0 9 1 4 50.81 2.23 1.7969 2 7 0 4 51.44 7.78 1.7765 2 4 2 4 51.45 3.22 1.7760 -3 2 1 4 52.31 1.98 1.7488 -1 6 3 4 52.31 3.93 1.7488 -1 8 2 4 52.69 10.68 1.7371 -1 9 1 4 52.74 1.24 1.7357 -2 4 3 4 53.50 1.98 1.7129 3 3 0 4 53.59 1.96 1.7102 -1 0 4 2 53.75 1.71 1.7053 1 5 3 4 53.88 2.09 1.7015 -1 1 4 4 54.14 3.60 1.6939 2 5 2 4 54.59 1.09 1.6811 -3 2 2 4 55.04 4.01 1.6685 -3 4 1 4 55.27 2.25 1.6620 3 1 1 4 55.56 1.26 1.6542 3 4 0 4 55.61 9.71 1.6527 0 7 3 4 56.05 3.78 1.6408 -3 3 2 4 56.19 3.01 1.6371 0 10 1 4 56.22 3.41 1.6362 -1 3 4 4 56.44 4.13 1.6303 0 3 4 4 56.95 2.21 1.6168 1 6 3 4 57.33 2.66 1.6071 2 6 2 4 57.57 4.36 1.6010 3 3 1 4 58.05 9.00 1.5890 -3 4 2 4 58.22 2.41 1.5847 -1 10 1 4 58.43 3.38 1.5795 0 4 4 4 58.43 1.11 1.5794 2 2 3 4 58.54 4.95 1.5767 -2 6 3 4 59.28 3.11 1.5588 -2 8 2 4 59.54 4.54 1.5527 3 4 1 4 59.69 7.95 1.5491 1 10 1 4 59.91 3.79 1.5439 1 1 4 4 60.20 5.14 1.5372 -3 1 3 4 60.36 2.24 1.5335 -2 9 1 4 60.37 1.00 1.5332 -1 8 3 4 60.55 1.47 1.5291 -3 5 2 4 60.60 1.12 1.5281 1 7 3 4 60.96 1.62 1.5199 2 7 2 4 61.03 1.05 1.5184 -3 2 3 4 61.18 1.43 1.5149 3 6 0 4 61.33 1.18 1.5115 0 10 2 4 62.01 4.44 1.4967 3 5 1 4 62.10 6.93 1.4947 1 3 4 4 62.13 4.92 1.4941 -2 7 3 4 62.35 2.79 1.4892 3 0 2 2 63.37 3.35 1.4678 -2 4 4 4 63.43 1.31 1.4665 3 2 2 4 63.98 1.37 1.4552 1 4 4 4 64.21 1.86 1.4506 -3 7 1 4 64.46 9.03 1.4455 0 9 3 4 64.95 1.34 1.4358 3 6 1 4 65.36 1.82 1.4277 1 11 1 4 65.75 2.00 1.4201 -2 5 4 4 67.06 3.39 1.3957 2 6 3 4 68.12 1.72 1.3764 0 12 1 4 68.59 2.99 1.3682 3 8 0 4 68.85 2.13 1.3637 -4 1 1 4 68.88 2.17 1.3632 -2 10 2 4 69.07 1.98 1.3599 1 9 3 4 69.61 4.52 1.3505 -4 2 1 4 69.95 1.38 1.3448 -1 12 1 4 70.40 1.68 1.3374 2 7 3 4 70.50 2.03 1.3357 -2 9 3 4 70.81 2.94 1.3306 -3 8 2 4 70.97 1.22 1.3281 -1 8 4 4 71.29 2.58 1.3229 1 12 1 4 72.39 2.16 1.3055 -2 1 5 4 72.46 2.67 1.3044 2 3 4 4 72.50 1.09 1.3038 1 7 4 4 72.61 1.36 1.3020 3 1 3 4 72.79 1.00 1.2992 0 12 2 4 73.75 1.14 1.2846 4 4 0 4 74.91 1.60 1.2676 4 2 1 4 75.49 1.52 1.2593 -3 5 4 4 76.83 2.15 1.2407 -4 5 2 4 77.07 2.01 1.2374 -1 6 5 4 79.21 1.15 1.2093 2 12 1 4 81.18 1.09 1.1849 -3 1 5 4 81.22 1.14 1.1843 3 6 3 4 81.36 1.58 1.1827 -3 7 4 4 81.73 1.40 1.1783 -4 5 3 4 82.71 1.83 1.1667 -2 13 1 4 82.97 1.34 1.1637 2 10 3 4 85.46 1.44 1.1361 4 8 0 4 85.50 1.78 1.1357 0 0 6 2 86.60 1.40 1.1241 1 7 5 4 86.96 1.25 1.1204 -3 5 5 4 87.04 1.10 1.1196 4 5 2 4 89.46 1.05 1.0954 -2 11 4 4 89.50 1.39 1.0950 -4 5 4 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.