Spencerite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050581 Fanfani L, Nunzi A, Zanazzi P F Mineralogical Magazine 38 (1972) 687-692 Structure and twinning in spencerite Locality: Salmo, British Columbia, Canada CELL PARAMETERS: 10.43716 5.274254 11.18305 90.00000 116.8054 90.00000 SPACE GROUP: P2/c X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 9.50 100.00 9.3156 1 0 0 15.92 1.26 5.5665 -1 0 2 17.77 5.94 4.9907 0 0 2 19.34 26.14 4.5897 1 1 0 19.33 1.39 4.5911 -2 0 2 19.41 26.62 4.5735 -1 1 1 23.05 21.84 3.8573 1 1 1 23.72 5.63 3.7510 1 0 2 23.99 7.83 3.7093 -2 1 1 24.55 1.85 3.6250 0 1 2 25.51 72.44 3.4913 2 1 0 25.72 6.95 3.4629 -2 1 2 26.07 12.51 3.4167 -3 0 2 28.74 2.86 3.1052 3 0 0 29.21 7.28 3.0568 1 1 2 29.44 25.31 3.0330 -1 1 3 30.19 11.61 2.9594 -2 1 3 31.05 5.56 2.8796 -3 1 1 31.18 3.56 2.8676 -3 1 2 31.63 11.03 2.8279 2 0 2 32.15 2.01 2.7832 -2 0 4 33.48 4.53 2.6759 3 1 0 34.36 2.08 2.6089 -4 0 2 34.48 4.41 2.6002 -3 0 4 35.36 15.01 2.5374 1 2 0 35.40 3.23 2.5347 -1 2 1 35.98 6.77 2.4953 0 0 4 36.02 1.06 2.4923 2 1 2 36.49 9.61 2.4615 -2 1 4 36.70 1.65 2.4477 1 1 3 36.97 6.49 2.4306 -1 1 4 38.03 2.57 2.3650 3 1 1 38.60 4.29 2.3316 0 2 2 38.59 6.89 2.3322 -3 1 4 38.64 11.93 2.3289 4 0 0 39.23 6.24 2.2955 -4 0 4 39.39 3.54 2.2867 -2 2 2 39.42 2.91 2.2848 -4 1 1 39.71 1.34 2.2689 -4 1 3 39.95 5.60 2.2556 0 1 4 41.45 4.01 2.1774 1 0 4 42.41 1.79 2.1305 4 1 0 42.95 3.11 2.1048 -4 1 4 43.32 3.20 2.0876 -3 2 2 43.96 1.97 2.0586 -2 1 5 44.16 1.53 2.0498 3 1 2 44.85 1.93 2.0199 -3 1 5 45.02 3.23 2.0126 1 1 4 45.31 1.83 2.0004 -1 1 5 45.37 2.24 1.9978 -3 2 3 45.77 1.33 1.9815 -5 0 4 46.94 1.76 1.9346 -5 1 2 47.10 4.14 1.9287 2 2 2 47.13 1.80 1.9275 4 1 1 47.10 1.79 1.9285 -5 1 3 47.47 8.82 1.9143 -2 2 4 47.64 3.06 1.9078 1 2 3 47.86 5.67 1.8996 -1 2 4 47.87 1.98 1.8991 -4 1 5 48.51 1.36 1.8755 2 0 4 49.07 2.54 1.8555 -3 0 6 49.12 1.25 1.8536 -2 0 6 49.10 2.89 1.8547 -4 2 2 49.09 1.46 1.8549 -5 1 4 49.87 1.00 1.8276 -4 2 1 51.45 4.24 1.7753 3 1 3 51.70 1.19 1.7671 2 1 4 52.03 2.87 1.7567 5 1 0 52.85 3.43 1.7314 -4 2 4 52.97 2.42 1.7276 1 3 0 53.00 1.87 1.7267 -1 3 1 53.23 1.59 1.7199 4 1 2 53.62 1.40 1.7084 -6 0 4 53.98 2.01 1.6978 1 1 5 54.63 3.58 1.6790 1 2 4 54.94 1.56 1.6703 -5 0 6 55.18 1.05 1.6636 0 0 6 55.38 3.29 1.6582 0 3 2 55.61 2.84 1.6518 -6 1 3 55.98 2.58 1.6418 -2 3 2 56.60 1.26 1.6252 -6 1 4 56.77 2.20 1.6207 3 0 4 57.88 1.33 1.5924 -5 1 6 58.11 1.15 1.5865 0 1 6 58.20 9.49 1.5842 -5 2 4 58.47 1.05 1.5777 -2 3 3 58.53 1.55 1.5760 -6 1 1 59.18 1.37 1.5604 -6 1 5 60.46 1.06 1.5302 4 1 3 60.48 4.51 1.5299 3 3 0 60.54 7.96 1.5284 2 2 4 60.84 8.00 1.5217 5 2 0 61.02 1.08 1.5175 -3 2 6 61.51 1.25 1.5066 -4 1 7 62.30 1.50 1.4894 6 1 0 62.52 1.15 1.4847 -7 0 4 63.88 3.23 1.4564 -3 3 4 64.83 3.11 1.4372 0 3 4 65.24 1.21 1.4292 -7 1 4 67.01 3.98 1.3958 -3 0 8 67.23 1.69 1.3916 -4 0 8 67.40 1.05 1.3886 -7 0 6 68.68 1.50 1.3657 4 1 4 70.32 1.69 1.3379 6 2 0 71.51 2.51 1.3186 0 4 0 71.74 1.42 1.3148 -5 1 8 73.73 1.10 1.2841 1 4 1 74.15 1.51 1.2780 -1 1 8 74.95 1.04 1.2663 -8 1 4 88.72 1.52 1.1018 4 3 4 88.72 1.52 1.1018 4 3 4 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.