Stanfieldite Dickens B, Brown W E Tschermaks Mineralogische und Petrographische Mitteilungen 16 (1971) 79-104 The crystal structure of Ca7Mg9(Ca,Mg)2(PO4)12 Locality: synthetic _database_code_amcsd 0015640 CELL PARAMETERS: 22.8410 9.9940 17.0880 90.000 99.630 90.000 SPACE GROUP: C2/c X-RAY WAVELENGTH: 1.541838 Cell Volume: 3845.761 Density (g/cm3): 2.942 MAX. ABS. INTENSITY / VOLUME**2: 4.125195500 RIR: 0.457 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.85 3.39 11.2596 2 0 0 2 10.70 40.67 8.2689 -1 1 1 4 12.02 1.18 7.3614 -2 0 2 2 14.15 1.40 6.2612 2 0 2 2 14.76 2.47 6.0020 3 1 0 4 14.78 42.77 5.9932 1 1 2 4 14.99 1.63 5.9093 -3 1 1 4 16.33 5.06 5.4290 3 1 1 4 16.95 4.80 5.2298 -3 1 2 4 17.42 6.24 5.0906 -4 0 2 2 17.75 27.45 4.9970 0 2 0 2 18.52 1.54 4.7907 0 2 1 4 19.11 3.34 4.6454 1 1 3 4 19.27 6.01 4.6056 3 1 2 4 20.49 5.71 4.3346 2 2 1 4 21.25 9.14 4.1810 -2 0 4 2 21.64 5.24 4.1061 5 1 0 4 23.06 77.82 3.8563 5 1 1 4 23.09 7.82 3.8517 3 1 3 4 23.71 32.41 3.7532 6 0 0 2 23.76 21.54 3.7446 2 0 4 2 23.81 83.76 3.7373 -4 2 1 4 23.81 16.24 3.7372 4 2 0 4 23.84 68.77 3.7331 0 2 3 4 23.86 1.32 3.7298 1 1 4 4 24.18 16.24 3.6807 -4 0 4 2 24.83 6.55 3.5854 -5 1 3 4 25.54 1.30 3.4874 5 1 2 4 27.06 1.43 3.2955 1 3 0 4 27.16 3.71 3.2836 4 2 2 4 27.45 4.85 3.2493 3 1 4 4 27.45 13.65 3.2492 -1 3 1 4 27.59 1.26 3.2333 -1 1 5 4 27.70 2.25 3.2204 0 2 4 4 27.82 1.92 3.2066 -2 2 4 4 28.51 3.01 3.1306 4 0 4 2 28.83 4.00 3.0972 5 1 3 4 28.85 1.72 3.0948 -1 3 2 4 28.86 15.68 3.0938 1 1 5 4 29.34 33.32 3.0438 1 3 2 4 29.41 1.43 3.0375 -7 1 2 4 30.16 1.93 2.9635 -4 2 4 4 30.16 13.09 2.9632 4 2 3 4 31.13 5.34 2.8731 -1 3 3 4 31.52 13.54 2.8382 -2 0 6 2 31.68 26.54 2.8245 -5 1 5 4 31.79 58.71 2.8151 -8 0 2 2 31.79 1.51 2.8149 8 0 0 2 31.87 25.19 2.8079 0 0 6 2 31.88 57.99 2.8075 -6 2 3 4 31.92 52.28 2.8039 -2 2 5 4 31.92 8.28 2.8034 3 3 2 4 32.48 2.34 2.7563 -3 3 3 4 32.67 10.30 2.7412 7 1 2 4 32.70 9.61 2.7387 5 1 4 4 32.72 6.63 2.7366 -1 1 6 4 33.00 11.14 2.7145 6 2 2 4 33.19 2.73 2.6995 -4 0 6 2 33.32 3.32 2.6888 -7 1 4 4 33.37 23.42 2.6849 -3 1 6 4 33.46 4.17 2.6783 5 3 0 4 33.79 3.99 2.6530 4 2 4 4 34.10 4.32 2.6290 -5 3 2 4 34.18 1.36 2.6233 2 0 6 2 34.29 2.14 2.6149 -6 2 4 4 34.42 7.67 2.6052 5 3 1 4 34.98 2.69 2.5651 1 3 4 4 35.26 1.46 2.5453 -8 0 4 2 35.76 65.81 2.5108 6 2 3 4 35.94 44.75 2.4985 0 4 0 2 37.04 8.70 2.4272 9 1 0 4 37.05 1.92 2.4265 -2 4 1 4 37.45 13.50 2.4017 2 4 1 4 37.83 3.53 2.3783 -8 2 3 4 38.31 6.22 2.3492 9 1 1 4 38.39 2.09 2.3448 -3 1 7 4 38.66 1.08 2.3291 5 3 3 4 38.68 3.72 2.3277 1 3 5 4 38.77 2.62 2.3227 2 2 6 4 38.92 2.95 2.3141 7 3 0 4 39.12 10.77 2.3028 6 2 4 4 39.46 3.25 2.2837 -4 4 1 4 39.46 7.00 2.2837 4 4 0 4 39.48 1.81 2.2828 0 4 3 4 39.75 2.50 2.2677 8 2 2 4 39.96 13.11 2.2563 -7 1 6 4 40.21 2.49 2.2429 -4 4 2 4 40.21 1.83 2.2428 4 4 1 4 40.45 1.12 2.2300 -5 1 7 4 40.98 8.15 2.2026 -6 2 6 4 41.64 3.22 2.1688 5 1 6 4 41.65 5.79 2.1683 0 2 7 4 41.67 1.15 2.1673 4 4 2 4 41.70 4.23 2.1659 7 3 2 4 41.75 5.62 2.1636 -1 3 6 4 42.24 3.37 2.1397 -7 3 4 4 42.30 3.41 2.1366 -8 2 5 4 42.31 12.76 2.1362 8 2 3 4 42.35 1.13 2.1342 -4 2 7 4 42.36 8.94 2.1339 4 2 6 4 42.95 3.82 2.1059 0 0 8 2 43.51 5.52 2.0798 6 4 0 4 43.69 2.62 2.0720 2 2 7 4 43.79 1.02 2.0672 -4 4 4 4 44.11 4.16 2.0531 10 2 0 4 44.62 2.81 2.0307 -10 2 3 4 44.70 3.32 2.0273 -11 1 2 4 45.02 2.90 2.0136 -6 2 7 4 45.06 6.12 2.0120 -6 4 3 4 45.09 4.17 2.0107 -2 4 5 4 45.10 2.90 2.0101 2 0 8 2 45.16 1.97 2.0078 -9 3 2 4 45.18 4.08 2.0069 0 4 5 4 45.30 5.23 2.0019 -5 1 8 4 45.33 1.19 2.0007 9 3 0 4 45.43 1.19 1.9966 8 2 4 4 45.46 2.20 1.9951 -11 1 3 4 45.81 4.76 1.9806 -1 5 1 4 46.08 2.22 1.9698 -9 3 3 4 46.09 10.86 1.9693 9 1 4 4 46.47 1.14 1.9543 11 1 1 4 46.50 3.99 1.9530 -4 4 5 4 46.56 1.61 1.9506 5 1 7 4 46.81 1.68 1.9406 0 2 8 4 46.87 1.28 1.9382 -11 1 4 4 47.06 1.32 1.9312 1 5 2 4 47.13 1.88 1.9283 -3 5 1 4 47.13 1.15 1.9283 4 2 7 4 47.62 1.35 1.9096 3 5 1 4 47.64 1.83 1.9090 3 1 8 4 47.83 3.37 1.9016 -7 3 6 4 47.86 1.91 1.9004 -12 0 2 2 48.04 2.81 1.8940 6 4 3 4 48.13 1.19 1.8905 9 3 2 4 48.27 5.00 1.8853 -1 5 3 4 48.34 3.35 1.8827 11 1 2 4 48.40 1.64 1.8806 -7 1 8 4 48.51 9.62 1.8766 12 0 0 2 48.55 4.73 1.8754 -2 4 6 4 48.63 8.54 1.8723 4 0 8 2 48.73 19.02 1.8687 -8 4 2 4 48.73 1.92 1.8686 8 4 0 4 48.79 8.86 1.8665 0 4 6 4 49.01 2.09 1.8588 -1 1 9 4 49.01 3.51 1.8585 -8 2 7 4 49.02 1.75 1.8582 8 2 5 4 49.22 1.40 1.8512 -3 5 3 4 49.30 3.88 1.8484 5 3 6 4 49.53 15.57 1.8404 -8 0 8 2 49.68 8.20 1.8351 -8 4 3 4 49.68 3.18 1.8350 8 4 1 4 49.73 2.72 1.8334 9 1 5 4 49.84 1.13 1.8297 -5 5 1 4 49.87 3.75 1.8287 3 3 7 4 50.43 1.00 1.8097 9 3 3 4 50.46 1.99 1.8087 7 3 5 4 50.62 10.34 1.8032 5 5 1 4 50.88 2.25 1.7946 -1 3 8 4 50.94 1.00 1.7927 -10 2 6 4 51.03 4.72 1.7898 -3 3 8 4 51.24 2.59 1.7830 -8 4 4 4 51.44 2.09 1.7763 -12 2 2 4 51.45 2.88 1.7763 -12 2 1 4 51.47 1.20 1.7754 -11 1 6 4 52.01 1.07 1.7584 -11 3 2 4 52.06 1.91 1.7568 12 2 0 4 52.11 3.84 1.7551 1 3 8 4 52.16 3.49 1.7535 -4 2 9 4 52.17 1.23 1.7533 4 2 8 4 52.43 2.73 1.7451 -2 4 7 4 52.54 2.80 1.7418 -5 3 8 4 52.69 1.54 1.7373 -11 3 3 4 52.72 1.29 1.7362 -9 1 8 4 52.82 2.48 1.7334 0 4 7 4 53.03 2.54 1.7269 -13 1 1 4 53.08 1.67 1.7253 -1 5 5 4 53.17 4.11 1.7227 3 1 9 4 53.59 1.08 1.7101 11 3 1 4 53.75 4.71 1.7055 11 1 4 4 53.78 2.31 1.7045 9 1 6 4 53.79 1.72 1.7043 -7 5 1 4 53.81 1.54 1.7037 5 5 3 4 54.11 1.20 1.6948 -10 2 7 4 54.15 1.89 1.6937 -4 0 10 2 54.20 1.04 1.6923 2 2 9 4 54.44 1.08 1.6853 -10 4 1 4 54.45 2.56 1.6852 -10 0 8 2 54.82 1.13 1.6745 7 5 1 4 54.89 1.76 1.6727 10 4 0 4 55.11 1.13 1.6664 -7 5 3 4 55.57 6.02 1.6538 -5 5 5 4 55.79 1.50 1.6477 2 6 0 4 55.88 1.33 1.6454 3 5 5 4 56.23 2.97 1.6360 5 5 4 4 56.26 1.37 1.6351 -13 1 5 4 56.50 4.47 1.6288 10 0 6 2 56.63 3.13 1.6252 -7 5 4 4 56.67 4.12 1.6243 -3 5 6 4 56.77 2.11 1.6216 13 1 2 4 57.05 1.60 1.6144 -9 1 9 4 57.10 1.51 1.6129 5 1 9 4 57.21 1.28 1.6102 0 4 8 4 57.34 1.95 1.6067 -12 2 6 4 57.41 4.21 1.6051 -8 2 9 4 57.46 11.64 1.6039 4 2 9 4 57.52 1.23 1.6023 11 3 3 4 57.72 4.06 1.5972 -4 6 1 4 57.73 1.03 1.5968 -10 2 8 4 58.14 4.41 1.5866 -7 1 10 4 58.47 1.38 1.5784 -10 4 5 4 58.79 1.46 1.5707 2 6 3 4 59.00 3.68 1.5656 -8 0 10 2 59.22 3.67 1.5603 3 5 6 4 59.59 1.27 1.5515 -13 3 1 4 59.60 3.07 1.5513 10 4 3 4 59.72 5.89 1.5485 3 3 9 4 59.85 1.53 1.5454 -1 5 7 4 59.88 1.15 1.5446 4 0 10 2 60.00 2.46 1.5418 -13 3 3 4 60.25 1.22 1.5359 11 3 4 4 60.58 1.55 1.5286 7 5 4 4 60.82 3.24 1.5231 1 5 7 4 60.84 2.21 1.5225 6 6 0 4 61.02 1.18 1.5185 11 1 6 4 61.10 1.20 1.5168 -9 5 4 4 61.12 1.30 1.5163 -6 6 2 4 61.17 5.72 1.5150 -13 1 7 4 61.28 1.12 1.5126 -12 4 2 4 61.61 1.69 1.5053 -15 1 2 4 61.70 3.10 1.5034 14 2 1 4 61.82 1.28 1.5007 6 2 9 4 61.83 1.02 1.5005 12 4 0 4 61.93 2.93 1.4983 4 4 8 4 62.07 2.04 1.4953 -6 6 3 4 62.21 1.17 1.4923 10 4 4 4 62.51 4.81 1.4859 -14 2 5 4 62.57 2.01 1.4846 15 1 0 4 62.65 2.28 1.4827 -2 2 11 4 62.70 3.59 1.4818 -8 4 8 4 62.75 2.58 1.4807 6 6 2 4 62.98 3.13 1.4758 -4 2 11 4 63.24 1.21 1.4705 4 6 4 4 63.34 2.15 1.4684 -9 3 9 4 63.50 1.17 1.4651 7 5 5 4 64.14 3.80 1.4520 12 0 6 2 64.29 1.15 1.4489 -7 5 7 4 64.37 3.18 1.4474 -7 3 10 4 64.49 4.16 1.4449 6 6 3 4 64.67 1.92 1.4412 -13 3 6 4 64.84 3.23 1.4380 -11 5 2 4 64.91 4.23 1.4365 -2 6 6 4 65.26 1.01 1.4298 11 1 7 4 65.55 1.83 1.4241 -6 6 5 4 65.62 1.83 1.4227 -2 0 12 2 65.64 1.67 1.4224 15 1 2 4 66.30 1.25 1.4098 5 5 7 4 66.32 1.86 1.4095 -3 1 12 4 66.49 1.89 1.4062 2 6 6 4 66.68 1.48 1.4026 -8 4 9 4 66.73 1.70 1.4017 6 6 4 4 67.01 2.02 1.3965 -14 2 7 4 67.09 1.70 1.3952 -5 1 12 4 67.12 1.67 1.3946 -12 2 9 4 67.23 2.31 1.3924 -13 3 7 4 67.67 1.61 1.3846 -1 7 3 4 67.92 1.36 1.3800 15 1 3 4 67.98 3.74 1.3791 -15 3 3 4 68.58 1.79 1.3683 -2 2 12 4 68.59 1.17 1.3683 5 1 11 4 68.81 1.93 1.3644 10 4 6 4 68.85 1.51 1.3636 9 5 5 4 68.93 1.44 1.3623 9 3 8 4 69.01 1.03 1.3610 5 7 0 4 69.01 1.03 1.3609 -4 6 7 4 69.01 1.31 1.3608 4 6 6 4 69.67 1.26 1.3495 8 0 10 2 69.91 2.20 1.3456 -10 6 1 4 69.98 1.57 1.3444 2 6 7 4 70.65 1.05 1.3333 14 4 1 4 70.95 1.64 1.3285 -17 1 3 4 71.06 1.98 1.3267 -8 4 10 4 71.13 2.20 1.3254 11 3 7 4 71.24 1.02 1.3237 12 2 7 4 71.28 1.25 1.3231 8 6 4 4 71.59 1.25 1.3181 -13 5 1 4 71.81 1.15 1.3146 -5 7 4 4 71.97 1.26 1.3120 -13 1 10 4 71.99 1.35 1.3117 4 0 12 2 72.20 1.83 1.3085 11 5 4 4 72.27 1.50 1.3074 1 7 5 4 72.27 1.45 1.3073 12 4 5 4 73.43 1.23 1.2895 9 1 10 4 73.70 1.07 1.2854 15 3 3 4 74.45 1.33 1.2743 10 6 3 4 74.67 2.03 1.2711 -7 7 4 4 74.67 1.73 1.2711 16 2 3 4 75.73 1.35 1.2560 -12 2 11 4 75.77 1.29 1.2554 12 4 6 4 75.97 1.02 1.2526 -12 6 2 4 76.13 1.94 1.2504 -11 1 12 4 76.46 1.62 1.2458 0 8 1 4 76.89 1.12 1.2400 -2 8 1 4 77.15 1.09 1.2363 -2 4 12 4 77.59 1.39 1.2305 13 1 8 4 77.90 1.03 1.2263 16 4 0 4 78.41 1.12 1.2196 -4 8 1 4 78.67 1.80 1.2163 -13 5 7 4 78.84 1.19 1.2140 17 3 1 4 79.05 1.17 1.2113 9 3 10 4 79.06 2.08 1.2112 -5 7 7 4 79.12 1.67 1.2104 -16 4 5 4 80.28 1.08 1.1959 6 6 8 4 80.65 1.83 1.1913 12 2 9 4 80.84 2.07 1.1890 16 4 2 4 80.93 1.20 1.1879 8 6 7 4 80.97 1.73 1.1874 8 4 10 4 81.11 1.95 1.1857 -19 1 4 4 81.20 1.15 1.1846 -10 6 8 4 81.48 1.01 1.1813 -7 7 7 4 81.53 1.07 1.1807 -13 5 8 4 81.93 2.18 1.1760 2 0 14 2 82.32 1.50 1.1713 0 8 5 4 82.52 1.21 1.1690 -11 7 3 4 83.65 1.19 1.1561 -19 1 6 4 84.75 1.01 1.1439 -10 0 14 2 85.44 1.14 1.1364 5 5 11 4 85.79 2.11 1.1326 4 6 10 4 86.59 1.79 1.1241 -19 3 4 4 87.80 1.82 1.1118 -2 8 7 4 87.89 1.98 1.1109 10 0 12 2 89.17 1.54 1.0982 -3 5 13 4 89.44 1.41 1.0956 -14 6 7 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.