Norbergite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050280 Gibbs G V, Ribbe P H American Mineralogist 54 (1969) 376-390 The crystal structures of the humite minerals: I. Norbergite CELL PARAMETERS: 4.710400 10.27180 8.747600 90.00000 90.00000 90.00000 SPACE GROUP: Pbnm X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 17.28 17.31 5.1364 0 2 0 20.05 6.17 4.4318 0 2 1 20.27 18.03 4.3837 0 0 2 20.76 5.64 4.2822 1 1 0 21.43 6.39 4.1498 1 0 1 25.67 1.87 3.4718 1 2 0 26.74 19.10 3.3344 0 2 2 27.64 22.15 3.2279 1 2 1 29.16 100.00 3.0632 1 1 2 32.32 7.05 2.7698 1 3 0 32.91 4.01 2.7216 1 2 2 33.94 70.15 2.6412 1 3 1 35.34 1.68 2.5401 0 2 3 36.17 5.10 2.4834 1 0 3 36.46 11.30 2.4646 0 4 1 37.25 32.06 2.4139 1 1 3 38.44 28.04 2.3416 1 3 2 39.24 12.44 2.2959 2 1 0 39.98 36.52 2.2549 1 4 0 40.34 68.08 2.2358 1 2 3 40.62 2.50 2.2210 2 1 1 40.71 4.29 2.2159 0 4 2 41.18 3.13 2.1918 0 0 4 44.54 6.55 2.0338 2 1 2 45.09 1.69 2.0104 1 3 3 46.54 12.55 1.9511 1 1 4 46.80 1.82 1.9407 2 3 0 47.10 2.26 1.9291 0 4 3 47.24 1.62 1.9239 2 2 2 49.15 2.67 1.8534 1 2 4 49.49 6.98 1.8412 1 5 1 51.48 1.17 1.7745 2 3 2 52.72 30.40 1.7359 2 4 0 52.90 2.87 1.7303 1 5 2 53.00 69.05 1.7272 2 2 3 53.28 3.43 1.7188 1 3 4 53.51 1.23 1.7121 0 6 0 53.82 8.80 1.7029 2 4 1 55.35 4.20 1.6594 0 2 5 56.71 1.96 1.6227 1 1 5 56.94 1.60 1.6167 2 3 3 57.04 5.39 1.6140 2 4 2 57.41 4.39 1.6046 2 0 4 57.79 11.04 1.5948 0 6 2 58.17 2.48 1.5854 2 1 4 58.28 1.43 1.5827 1 6 1 58.26 6.06 1.5830 1 5 3 58.73 1.37 1.5717 1 4 4 60.55 4.71 1.5285 3 1 1 60.72 1.16 1.5247 2 5 1 62.17 1.91 1.4925 2 4 3 62.75 1.38 1.4801 3 2 1 62.68 14.99 1.4816 1 3 5 62.89 38.90 1.4773 0 6 3 63.56 3.11 1.4633 3 1 2 63.72 2.19 1.4599 2 5 2 63.66 24.62 1.4612 0 0 6 64.30 4.98 1.4481 0 4 5 65.35 1.88 1.4274 3 3 0 65.70 1.03 1.4207 3 2 2 66.32 6.22 1.4088 3 3 1 66.73 10.10 1.4011 1 7 0 67.69 1.72 1.3836 1 7 1 67.71 1.34 1.3833 3 0 3 68.40 2.86 1.3709 3 1 3 68.56 1.66 1.3682 2 5 3 69.19 3.25 1.3572 3 3 2 69.66 4.39 1.3493 0 6 4 70.22 6.38 1.3397 3 4 0 70.47 19.38 1.3357 3 2 3 71.16 3.94 1.3243 3 4 1 73.80 4.38 1.2833 1 5 5 73.94 1.01 1.2812 3 4 2 76.92 1.26 1.2389 1 8 0 77.31 1.37 1.2336 2 4 5 77.41 1.12 1.2323 0 8 2 77.37 2.32 1.2327 2 1 6 77.86 3.53 1.2263 1 4 6 79.90 2.16 1.2000 3 5 2 80.53 1.25 1.1922 1 8 2 81.49 1.90 1.1805 1 7 4 81.72 5.68 1.1777 4 0 0 81.69 1.21 1.1782 1 2 7 83.05 2.46 1.1623 3 1 5 83.49 1.20 1.1573 3 6 0 84.37 1.92 1.1474 3 5 3 84.51 2.29 1.1458 2 7 3 84.99 1.68 1.1406 3 2 5 84.93 2.32 1.1412 1 3 7 86.22 2.57 1.1274 2 8 0 87.04 1.28 1.1189 3 6 2 87.11 1.47 1.1182 2 8 1 87.14 7.60 1.1179 2 4 6 88.22 4.36 1.1070 3 3 5 89.48 1.17 1.0946 1 7 5 89.48 1.17 1.0946 1 7 5 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.