Brassite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060042 Protas J, Gindt R Acta Crystallographica B32 (1976) 1460-1466 Structure cristalline de la brassite, MgHAsO4*4H2O, produit de deshydratation de la roesslerite Locality: synthetic CELL PARAMETERS: 7.472000 10.89100 16.58500 90.00000 90.00000 90.00000 SPACE GROUP: Pbca X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 10.73 2.42 8.2968 0 0 2 15.39 2.50 5.7799 1 1 1 16.02 15.10 5.5554 1 0 2 16.34 6.02 5.4468 0 2 0 17.20 2.38 5.1751 0 2 1 17.98 100.00 4.9490 1 1 2 19.55 16.70 4.5532 0 2 2 21.48 26.82 4.1484 0 0 4 22.92 9.66 3.8893 1 2 2 22.97 10.44 3.8809 0 2 3 23.85 11.59 3.7398 2 0 0 25.94 23.35 3.4419 1 1 4 26.19 1.31 3.4094 2 0 2 27.07 14.31 3.3002 0 2 4 27.89 36.62 3.2051 1 3 1 29.01 37.79 3.0830 2 2 0 29.44 14.76 3.0395 1 3 2 29.52 12.57 3.0312 2 2 1 30.64 6.51 2.9223 1 1 5 30.99 1.98 2.8900 2 2 2 32.27 15.40 2.7777 2 0 4 33.33 3.06 2.6916 2 1 4 33.39 3.74 2.6874 0 4 1 33.87 7.19 2.6502 1 2 5 34.71 4.61 2.5875 0 4 2 34.91 3.22 2.5737 2 3 1 35.01 2.52 2.5664 1 3 4 35.62 8.32 2.5234 1 1 6 36.18 2.21 2.4855 2 3 2 36.35 6.73 2.4745 2 2 4 36.48 8.44 2.4659 0 2 6 36.80 1.05 2.4453 1 4 2 36.83 3.32 2.4433 0 4 3 37.19 1.96 2.4202 2 1 5 37.44 2.27 2.4047 3 1 1 37.72 2.51 2.3877 3 0 2 38.23 1.30 2.3568 2 3 3 38.64 13.01 2.3324 3 1 2 38.72 7.63 2.3280 1 3 5 40.58 1.24 2.2250 3 1 3 41.32 1.16 2.1868 3 2 2 42.52 1.29 2.1279 2 4 2 43.18 4.78 2.0970 3 1 4 43.65 8.40 2.0753 1 5 1 44.02 1.85 2.0587 2 2 6 44.32 7.73 2.0454 2 4 3 45.41 6.13 1.9988 1 0 8 45.50 6.33 1.9950 3 3 2 46.21 5.24 1.9659 1 1 8 46.90 1.03 1.9384 0 2 8 48.55 2.60 1.8764 1 2 8 48.73 3.86 1.8699 4 0 0 49.81 2.30 1.8317 4 1 1 49.99 3.65 1.8256 3 1 6 50.89 2.38 1.7954 3 4 2 51.11 3.79 1.7880 0 4 7 51.56 1.36 1.7736 0 6 2 51.68 3.63 1.7696 1 5 5 51.71 1.18 1.7686 4 2 0 51.78 1.03 1.7665 1 1 9 52.27 4.16 1.7510 1 3 8 52.39 3.67 1.7474 3 3 5 52.42 3.27 1.7464 0 2 9 52.46 1.37 1.7450 3 4 3 52.66 1.19 1.7390 1 4 7 52.96 1.29 1.7297 4 2 2 53.12 4.34 1.7250 0 6 3 53.20 5.95 1.7224 2 4 6 53.25 1.58 1.7210 2 2 8 53.80 2.26 1.7047 4 0 4 54.50 2.12 1.6846 4 2 3 54.62 1.10 1.6809 1 6 3 56.38 6.06 1.6326 3 5 1 56.59 2.49 1.6269 4 2 4 56.65 2.57 1.6254 2 6 1 57.12 2.33 1.6131 2 4 7 57.41 1.94 1.6056 1 3 9 58.14 3.98 1.5873 0 2 10 58.34 1.21 1.5824 2 2 9 58.52 3.06 1.5777 3 1 8 58.72 1.16 1.5728 3 5 3 58.99 4.43 1.5664 2 6 3 59.55 1.42 1.5529 3 3 7 59.71 1.73 1.5491 4 0 6 60.32 2.29 1.5349 4 4 1 61.10 3.24 1.5172 1 7 1 61.12 2.91 1.5168 2 0 10 61.65 1.18 1.5050 2 3 9 62.33 2.53 1.4900 4 2 6 62.57 2.65 1.4849 4 4 3 63.24 1.10 1.4707 3 5 5 63.81 4.12 1.4589 5 1 2 64.68 1.83 1.4414 0 6 7 67.07 1.54 1.3956 5 1 4 67.68 1.45 1.3846 1 7 5 67.76 2.37 1.3831 1 5 9 68.36 1.45 1.3725 3 3 9 68.82 1.28 1.3643 5 3 2 69.24 1.38 1.3571 0 8 1 69.70 1.27 1.3493 1 1 12 69.96 3.13 1.3450 2 6 7 71.16 1.33 1.3251 2 4 10 71.73 1.07 1.3160 3 7 1 72.34 2.12 1.3063 5 1 6 73.25 1.96 1.2923 4 4 7 74.29 1.13 1.2767 5 3 5 74.36 1.23 1.2757 2 8 1 74.52 1.68 1.2734 1 3 12 74.90 1.82 1.2679 4 6 3 75.68 1.03 1.2566 5 1 7 76.40 1.32 1.2466 2 8 3 76.68 1.19 1.2428 0 2 13 77.87 2.37 1.2267 3 7 5 78.11 2.22 1.2235 1 5 11 78.68 1.03 1.2161 3 3 11 79.14 1.14 1.2101 4 2 10 79.48 1.29 1.2058 5 1 8 82.95 1.12 1.1639 1 1 14 83.65 1.38 1.1560 5 5 5 84.94 1.49 1.1416 4 6 7 88.54 1.07 1.1042 2 4 13 88.54 1.07 1.1042 2 4 13 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.