Grunerite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern R060062 Finger L W Mineralogical Society of America Special Paper 2 (1969) 95-100 The crystal structure and cation distribution of a grunerite Locality: Wabush iron formation, Labrador, Canada CELL PARAMETERS: 9.564200 18.39300 5.338800 90.00000 101.8920 90.00000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.70 16.10 9.1348 0 2 0 10.64 100.00 8.3271 1 1 0 17.04 2.68 5.2060 0 0 1 18.34 7.03 4.8390 -1 1 1 18.98 9.82 4.6777 2 0 0 19.44 5.30 4.5674 0 4 0 21.35 7.32 4.1635 2 2 0 21.76 1.56 4.0848 1 1 1 22.97 11.34 3.8728 -1 3 1 24.77 1.15 3.5954 -2 2 1 25.81 19.51 3.4524 1 3 1 26.19 1.40 3.4035 1 5 0 27.29 20.11 3.2679 2 4 0 28.20 1.25 3.1651 2 0 1 29.05 43.86 3.0740 3 1 0 29.33 1.07 3.0449 0 6 0 29.88 12.45 2.9906 2 2 1 32.25 6.58 2.7757 3 3 0 32.51 51.53 2.7541 1 5 1 33.63 3.80 2.6645 -3 3 1 34.11 30.27 2.6284 0 6 1 34.11 5.79 2.6281 -1 1 2 35.16 1.53 2.5519 2 6 0 35.78 34.13 2.5091 -2 0 2 37.42 6.07 2.4026 -2 6 1 38.09 1.30 2.3621 1 1 2 38.48 1.68 2.3388 4 0 0 38.89 1.46 2.3155 -1 7 1 39.13 13.68 2.3015 -3 5 1 40.04 3.74 2.2516 -4 2 1 40.72 6.71 2.2155 1 7 1 40.51 9.74 2.2264 -3 1 2 41.13 26.47 2.1943 2 6 1 41.03 1.15 2.1991 -2 4 2 42.96 1.36 2.1049 -3 3 2 43.25 1.44 2.0913 0 8 1 43.16 11.96 2.0955 2 0 2 44.41 9.66 2.0393 3 5 1 45.44 1.10 1.9955 1 5 2 46.34 3.44 1.9586 -3 7 1 46.42 7.08 1.9555 -4 0 2 48.35 1.93 1.8818 -1 9 1 49.18 1.25 1.8520 2 8 1 49.32 2.88 1.8471 -4 6 1 49.90 1.04 1.8269 1 9 1 50.77 3.55 1.7977 -4 4 2 53.35 1.79 1.7167 0 8 2 53.79 2.69 1.7034 -1 3 3 54.29 1.28 1.6889 -2 8 2 54.25 5.60 1.6901 -5 1 2 54.61 3.50 1.6798 -5 5 1 55.25 18.50 1.6620 4 6 1 56.23 8.13 1.6353 1 11 0 57.74 11.71 1.5961 -1 5 3 58.29 2.31 1.5823 2 10 1 58.28 3.27 1.5825 4 0 2 59.24 3.90 1.5592 6 0 0 60.81 7.34 1.5225 0 12 0 61.01 8.40 1.5180 -2 6 3 61.47 5.08 1.5077 0 6 3 61.52 2.56 1.5067 5 5 1 62.04 2.13 1.4953 4 4 2 62.68 3.64 1.4816 -6 0 2 63.42 2.87 1.4659 3 11 0 63.36 2.65 1.4673 -1 7 3 64.90 1.53 1.4361 -4 10 1 66.35 1.78 1.4082 -1 11 2 66.36 15.66 1.4080 -6 6 1 67.46 3.73 1.3876 -4 6 3 67.68 5.49 1.3836 5 1 2 68.78 3.99 1.3642 2 6 3 68.88 2.51 1.3624 1 11 2 70.52 1.76 1.3348 -3 11 2 70.63 1.73 1.3329 7 1 0 70.67 1.42 1.3322 -5 5 3 71.17 1.35 1.3242 -1 1 4 72.59 9.07 1.3016 -2 12 2 72.60 4.96 1.3015 0 0 4 74.30 1.84 1.2760 4 12 0 74.09 2.13 1.2789 -7 5 1 74.36 1.31 1.2751 -2 4 4 75.78 2.01 1.2546 -4 0 4 77.45 2.05 1.2317 2 12 2 77.66 1.28 1.2288 6 0 2 79.79 1.29 1.2013 -4 12 2 80.62 1.59 1.1910 2 0 4 80.94 4.38 1.1871 -5 11 2 82.43 1.01 1.1694 8 0 0 87.09 1.75 1.1184 3 1 4 89.21 2.28 1.0972 4 12 2 89.21 2.28 1.0972 4 12 2 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.