Fluorapatite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern for R050369 Hughes J M, Cameron M, Crowley K D American Mineralogist 74 (1989) 870-876 Structural variations in natural F, OH, and Cl apatites Locality: Durango Mexico CELL PARAMETERS: 9.383210 9.383210 6.886548 90.00000 90.00000 120.0000 SPACE GROUP: P6_3/m X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 10.92 9.88 8.1261 1 0 0 16.90 3.68 5.2537 1 0 1 18.94 1.50 4.6916 1 1 0 21.90 5.36 4.0630 2 0 0 22.96 6.53 3.8773 1 1 1 25.47 2.02 3.4994 2 0 1 25.90 37.39 3.4433 0 0 2 28.17 12.00 3.1704 1 0 2 29.09 14.05 3.0714 1 2 0 31.92 69.57 2.8050 1 2 1 31.92 30.43 2.8050 2 1 1 32.26 40.17 2.7759 1 1 2 33.09 57.76 2.7087 3 0 0 34.15 25.65 2.6269 2 0 2 35.63 3.82 2.5207 3 0 1 39.32 4.77 2.2920 1 2 2 40.01 4.48 2.2538 1 3 0 40.01 16.68 2.2538 3 1 0 40.64 2.86 2.2205 2 2 1 42.20 1.94 2.1420 1 3 1 42.20 3.88 2.1420 3 1 1 43.91 4.39 2.0619 1 1 3 44.61 1.26 2.0315 4 0 0 45.38 3.59 1.9986 2 0 3 46.86 26.84 1.9387 2 2 2 48.26 5.66 1.8857 1 3 2 48.26 7.87 1.8857 3 1 2 48.85 3.44 1.8643 3 2 0 49.58 23.65 1.8387 1 2 3 49.58 10.04 1.8387 2 1 3 50.73 8.30 1.7995 2 3 1 50.73 7.78 1.7995 3 2 1 51.53 6.19 1.7733 1 4 0 51.54 7.20 1.7733 4 1 0 52.23 1.17 1.7512 3 0 3 52.28 13.10 1.7497 4 0 2 53.20 15.82 1.7216 0 0 4 56.09 7.54 1.6394 2 3 2 57.28 1.93 1.6082 1 3 3 57.28 1.54 1.6082 3 1 3 58.33 1.65 1.5818 5 0 1 60.25 4.45 1.5357 4 2 0 60.72 4.10 1.5250 3 3 1 61.76 1.04 1.5018 1 2 4 61.76 2.13 1.5018 2 1 4 61.89 2.07 1.4989 4 2 1 63.26 10.80 1.4697 5 0 2 63.75 1.15 1.4595 1 5 0 64.07 8.26 1.4530 3 0 4 64.36 5.44 1.4471 2 3 3 65.34 6.01 1.4278 1 5 1 65.54 1.37 1.4239 3 3 2 69.99 1.58 1.3438 5 1 2 71.98 4.15 1.3115 3 4 1 72.64 2.63 1.3012 2 5 0 74.13 1.54 1.2786 2 5 1 74.28 3.33 1.2764 4 2 3 75.64 1.59 1.2567 2 1 5 75.64 3.55 1.2567 1 2 5 76.45 2.40 1.2455 4 3 2 76.91 1.14 1.2392 1 6 0 77.20 2.65 1.2352 1 4 4 77.20 4.42 1.2352 4 1 4 77.47 3.58 1.2316 1 5 3 78.56 5.03 1.2172 5 2 2 81.39 1.04 1.1818 5 0 4 83.73 3.89 1.1546 3 4 3 84.35 1.78 1.1478 0 0 6 84.51 2.02 1.1460 4 2 4 84.51 1.30 1.1460 2 4 4 85.80 1.19 1.1320 2 5 3 87.45 3.28 1.1149 1 1 6 87.60 1.82 1.1133 1 5 4 88.15 1.55 1.1078 3 2 5 88.93 1.17 1.1000 5 3 2 88.93 1.03 1.1000 7 0 2 88.93 1.03 1.1000 7 0 2 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.