Hydroxylherderite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050518 Lager G A, Gibbs G V American Mineralogist 59 (1974) 919-925 A refinement of the crystal structure of herderite, CaBePO4OH CELL PARAMETERS: 9.773613 7.666528 4.792173 90.00000 90.06293 90.00000 SPACE GROUP: P2_1/a X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 14.73 30.01 6.0321 1 1 0 18.56 16.75 4.7922 0 0 1 21.60 5.36 4.1208 2 1 0 21.91 2.71 4.0636 0 1 1 23.24 17.69 3.8333 0 2 0 23.74 11.98 3.7535 -1 1 1 23.76 21.55 3.7510 1 1 1 24.99 1.56 3.5686 1 2 0 26.06 12.66 3.4234 -2 0 1 26.09 51.64 3.4197 2 0 1 28.59 100.00 3.1259 -2 1 1 28.61 76.64 3.1231 2 1 1 29.65 24.73 3.0161 2 2 0 29.88 58.69 2.9934 0 2 1 31.27 48.83 2.8627 -1 2 1 31.29 41.17 2.8616 1 2 1 35.17 1.79 2.5534 -2 2 1 35.19 10.26 2.5518 2 2 1 35.32 12.23 2.5430 -3 1 1 35.35 26.98 2.5407 3 1 1 36.21 2.12 2.4824 3 2 0 36.36 4.55 2.4724 1 3 0 36.81 12.04 2.4434 4 0 0 37.56 4.00 2.3961 0 0 2 38.70 18.37 2.3280 4 1 0 39.42 1.98 2.2870 0 1 2 39.83 22.79 2.2646 2 3 0 40.00 22.33 2.2549 0 3 1 40.52 16.71 2.2274 -1 1 2 40.54 1.55 2.2263 1 1 2 40.95 31.24 2.2050 -3 2 1 40.98 26.40 2.2035 3 2 1 41.10 1.19 2.1975 -1 3 1 41.11 4.43 2.1970 1 3 1 41.48 11.23 2.1777 -4 0 1 41.52 13.52 2.1758 4 0 1 42.00 9.22 2.1523 -2 0 2 42.03 1.27 2.1505 2 0 2 43.20 8.39 2.0949 -4 1 1 44.25 7.06 2.0479 -2 3 1 44.61 4.28 2.0318 0 2 2 45.11 6.95 2.0107 3 3 0 45.61 13.64 1.9896 -1 2 2 45.63 15.11 1.9889 1 2 2 47.45 9.11 1.9166 0 4 0 48.05 2.76 1.8941 5 1 0 48.06 3.03 1.8935 -4 2 1 48.41 2.77 1.8808 1 4 0 48.55 3.38 1.8755 2 2 2 48.63 13.23 1.8727 -3 1 2 48.68 15.67 1.8709 3 1 2 49.16 2.00 1.8537 3 3 1 51.21 12.61 1.7843 2 4 0 51.35 18.04 1.7796 0 4 1 51.77 7.01 1.7660 4 3 0 51.90 3.67 1.7622 -5 1 1 52.56 13.01 1.7414 5 2 0 53.11 1.78 1.7247 -3 2 2 53.24 5.57 1.7209 -1 3 2 53.54 6.63 1.7117 -4 0 2 54.97 4.56 1.6706 -4 1 2 55.03 19.48 1.6688 4 1 2 55.44 12.75 1.6575 -4 3 1 55.47 11.15 1.6567 4 3 1 55.85 12.29 1.6462 -2 3 2 55.88 19.83 1.6454 2 3 2 56.19 4.22 1.6372 -5 2 1 56.50 4.30 1.6289 6 0 0 57.72 2.83 1.5974 0 0 3 59.11 5.79 1.5630 -4 2 2 59.17 2.16 1.5615 3 4 1 59.91 1.35 1.5439 1 1 3 59.96 7.02 1.5428 -6 0 1 60.00 4.91 1.5418 6 0 1 60.05 1.43 1.5408 -3 3 2 61.05 4.01 1.5178 2 0 3 61.49 1.00 1.5080 4 4 0 61.89 5.74 1.4992 6 2 0 62.32 2.71 1.4899 -2 1 3 62.36 2.01 1.4889 2 1 3 62.54 1.82 1.4851 5 1 2 62.80 2.01 1.4796 -1 4 2 62.91 1.14 1.4774 -5 3 1 63.83 5.14 1.4582 -1 2 3 63.85 6.05 1.4578 1 2 3 64.51 4.03 1.4444 -1 5 1 64.52 1.83 1.4443 1 5 1 64.82 1.99 1.4382 4 4 1 65.18 1.94 1.4312 -6 2 1 65.17 1.95 1.4314 -2 4 2 65.20 3.33 1.4308 2 4 2 66.26 5.30 1.4104 -3 1 3 66.32 3.11 1.4092 3 1 3 66.39 1.57 1.4080 5 2 2 69.03 2.33 1.3604 -3 4 2 69.37 2.92 1.3545 0 3 3 70.06 1.79 1.3428 3 2 3 70.67 3.47 1.3328 -3 5 1 70.69 5.43 1.3324 3 5 1 71.40 2.28 1.3208 -7 1 1 71.41 1.23 1.3208 -6 3 1 71.68 2.83 1.3165 4 1 3 71.73 1.57 1.3157 5 4 1 72.37 1.63 1.3056 -2 3 3 74.20 3.81 1.2778 0 6 0 74.63 2.92 1.2715 -6 2 2 75.03 1.10 1.2657 -7 2 1 75.08 4.32 1.2650 7 2 1 74.94 2.76 1.2670 1 6 0 75.22 3.05 1.2630 -4 2 3 75.87 1.83 1.2537 -4 5 1 75.90 2.61 1.2534 4 5 1 76.06 1.32 1.2512 -3 3 3 76.11 1.76 1.2503 3 3 3 76.22 1.66 1.2488 -2 5 2 76.25 2.94 1.2485 2 5 2 76.77 10.72 1.2412 6 4 0 77.82 5.48 1.2271 0 4 3 77.99 1.16 1.2248 1 6 1 78.23 1.36 1.2218 -5 1 3 78.23 2.77 1.2217 8 0 0 78.32 1.57 1.2205 5 1 3 78.56 2.14 1.2174 1 4 3 79.41 4.00 1.2065 8 1 0 79.41 1.75 1.2064 5 5 0 79.86 3.56 1.2009 -3 5 2 80.08 2.50 1.1980 0 0 4 79.89 5.29 1.2004 3 5 2 80.17 1.94 1.1969 2 6 1 80.55 1.33 1.1923 -7 1 2 80.70 1.13 1.1904 -2 4 3 80.77 1.13 1.1895 3 6 0 80.99 1.37 1.1868 7 3 1 81.13 1.20 1.1851 -4 3 3 81.25 1.57 1.1837 0 1 4 81.21 3.22 1.1842 4 3 3 81.75 3.59 1.1777 -5 2 3 81.85 2.73 1.1766 5 2 3 81.99 2.10 1.1749 1 1 4 83.77 2.05 1.1544 3 6 1 84.05 4.21 1.1512 -7 2 2 84.14 3.57 1.1502 7 2 2 84.97 1.86 1.1411 -6 0 3 85.08 2.89 1.1399 6 0 3 85.48 1.29 1.1356 1 2 4 86.24 1.51 1.1275 6 1 3 86.95 4.01 1.1201 -1 6 2 87.66 1.07 1.1129 5 3 3 88.70 5.51 1.1025 -6 4 2 88.77 1.04 1.1017 6 4 2 89.05 2.80 1.0991 1 5 3 89.08 1.24 1.0987 -2 6 2 89.26 3.96 1.0969 -4 4 3 89.60 1.14 1.0937 -6 2 3 89.60 1.14 1.0937 -6 2 3 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.