Ardealite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R060233 Sakae T, Nagata H, Sudo T American Mineralogist 63 (1978) 520-527 The crystal structure of synthetic calcium phosphate - sulfate hydrate, Ca2HPO4SO4.4H2O, and its relation to brushite and gypsum CELL PARAMETERS: 5.721000 30.99200 6.250000 90.00000 117.2600 90.00000 SPACE GROUP: Cc X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 11.44 100.00 7.7547 0 4 0 17.68 2.13 5.0244 -1 1 1 17.71 2.19 5.0159 1 1 0 19.46 19.41 4.5678 -1 3 1 19.48 19.88 4.5614 1 3 0 22.61 26.11 3.9358 -1 5 1 22.64 26.11 3.9317 1 5 0 22.96 14.13 3.8774 0 8 0 23.52 1.24 3.7849 0 6 1 26.69 29.52 3.3426 -1 7 1 26.71 29.92 3.3401 1 7 0 28.84 6.67 3.0970 -1 1 2 28.90 6.52 3.0910 1 1 1 30.00 13.28 2.9804 -1 3 2 30.05 11.96 2.9751 1 3 1 31.35 26.65 2.8541 -1 9 1 31.37 26.34 2.8526 1 9 0 31.82 18.80 2.8135 -2 2 1 32.19 9.49 2.7820 -1 5 2 32.24 9.92 2.7777 1 5 1 32.76 14.82 2.7346 0 2 2 33.09 1.07 2.7084 0 10 1 34.30 9.97 2.6154 0 4 2 35.25 3.14 2.5470 -1 7 2 35.29 3.09 2.5437 1 7 1 35.26 4.25 2.5458 -2 0 2 35.33 5.20 2.5414 2 0 0 35.75 3.95 2.5122 -2 2 2 35.81 4.25 2.5079 2 2 0 35.88 2.33 2.5032 -2 6 1 36.73 31.14 2.4472 0 6 2 37.18 1.71 2.4188 -2 4 2 37.24 1.33 2.4150 2 4 0 39.00 3.93 2.3100 -1 9 2 39.04 3.61 2.3075 1 9 1 39.46 2.62 2.2839 -2 6 2 39.52 3.12 2.2807 2 6 0 41.81 1.90 2.1606 -1 13 1 41.83 1.23 2.1599 1 13 0 42.48 3.97 2.1281 -2 8 2 42.53 4.54 2.1255 2 8 0 43.01 13.32 2.1030 -2 10 1 43.30 2.92 2.0898 -1 11 2 43.34 2.71 2.0879 1 11 1 43.74 7.81 2.0695 0 10 2 44.57 5.50 2.0327 -1 3 3 44.64 4.95 2.0299 1 3 2 45.85 2.46 1.9789 -2 2 3 45.96 1.96 1.9748 2 2 1 46.13 4.81 1.9679 -2 10 2 46.18 4.65 1.9658 2 10 0 46.16 1.03 1.9663 -1 5 3 46.86 3.58 1.9387 0 16 0 47.03 5.68 1.9323 -2 4 3 47.12 6.07 1.9284 2 4 1 48.08 4.71 1.8924 0 12 2 48.47 2.50 1.8778 -1 7 3 48.49 1.96 1.8771 -3 1 2 48.53 3.08 1.8756 1 7 2 48.53 2.03 1.8757 -3 1 1 49.81 1.66 1.8305 0 16 1 50.30 9.90 1.8138 -2 12 2 50.35 9.64 1.8122 2 12 0 50.72 2.15 1.7996 -3 5 2 50.76 2.40 1.7985 -3 5 1 51.43 3.29 1.7766 -1 9 3 51.49 3.58 1.7747 1 9 2 52.84 7.05 1.7322 0 14 2 52.88 3.03 1.7311 -3 7 2 52.92 3.11 1.7300 -3 7 1 53.33 1.97 1.7177 -1 17 1 53.34 1.87 1.7173 1 17 0 54.93 1.12 1.6713 -2 14 2 54.97 1.11 1.6701 2 14 0 54.96 1.18 1.6704 -1 11 3 55.02 1.00 1.6688 1 11 2 55.67 1.63 1.6508 -3 9 2 55.70 2.03 1.6499 -3 9 1 58.63 1.97 1.5741 -1 17 2 58.67 1.84 1.5733 1 17 1 59.70 2.93 1.5485 -2 2 4 59.83 2.64 1.5455 2 2 2 59.96 1.90 1.5424 -2 16 2 60.00 1.91 1.5414 2 16 0 62.48 1.25 1.4860 -1 5 4 62.56 1.08 1.4845 1 5 3 64.43 1.75 1.4458 -1 19 2 64.46 2.03 1.4452 1 19 1 65.12 1.49 1.4319 3 3 1 65.20 4.62 1.4305 -4 0 2 67.29 1.08 1.3910 -2 10 4 67.41 1.08 1.3888 2 10 2 67.40 1.35 1.3891 0 0 4 67.70 2.22 1.3835 0 2 4 68.53 1.00 1.3688 1 17 2 70.55 1.17 1.3344 -1 21 2 70.58 1.24 1.3340 1 21 1 74.48 2.68 1.2735 -2 14 4 74.59 2.73 1.2718 2 14 2 74.81 1.13 1.2686 -4 2 4 74.96 1.10 1.2664 4 2 0 76.65 1.12 1.2427 -3 17 3 76.73 1.18 1.2416 3 17 0 77.63 1.10 1.2294 1 15 3 81.74 1.33 1.1776 -4 10 4 81.89 1.36 1.1759 4 10 0 81.83 1.31 1.1766 -3 19 3 81.91 1.12 1.1756 3 19 0 89.32 1.42 1.0962 0 26 2 89.32 1.42 1.0962 0 26 2 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.