Serendibite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from the powder pattern Van Derveer D G, Swihart G H, Sen Gupta P K, Grew E S American Mineralogist 78 (1993) 195-203 Cation occupancies in serendibite: A crystal structure study Sample from Johnsburg, New York Displacement parameters obtained from ICSD CELL PARAMETERS: 10.01811 10.40086 8.643467 106.4724 95.97900 124.3861 SPACE GROUP: P-1 X-RAY WAVELENGTH: 1.541838 2-THETA INTENSITY D-SPACING H K L 11.34 1.69 7.8128 0 0 1 11.36 2.86 7.8008 0 1 0 11.37 10.20 7.7927 1 0 0 12.26 18.31 7.2307 0 -1 1 13.11 2.19 6.7606 -1 0 1 14.32 5.10 6.1941 1 -1 1 15.74 1.56 5.6344 -1 1 1 18.86 2.45 4.7076 -1 -1 1 19.15 9.45 4.6371 0 1 1 20.76 3.31 4.2801 0 -1 2 21.84 11.82 4.0720 -2 0 1 21.88 10.93 4.0641 2 -2 1 22.84 5.54 3.8944 2 -1 1 24.20 3.19 3.6782 1 -2 2 24.63 24.83 3.6153 0 -2 2 25.73 2.33 3.4634 -1 1 2 26.37 6.07 3.3803 -2 0 2 26.45 3.18 3.3707 2 -3 1 26.80 41.18 3.3273 -2 1 2 26.86 31.80 3.3194 -2 3 0 26.89 3.55 3.3162 -3 2 0 27.41 1.25 3.2540 1 1 1 28.27 12.51 3.1577 -3 1 1 28.40 1.78 3.1429 -1 -2 1 28.67 1.73 3.1138 -3 1 0 28.80 7.56 3.1000 -2 -1 1 28.79 13.01 3.1017 1 0 2 28.83 11.14 3.0971 2 -2 2 29.54 30.86 3.0242 0 1 2 29.56 32.56 3.0221 0 2 1 29.91 5.72 2.9876 -1 -2 2 30.02 6.76 2.9768 3 -2 1 30.96 19.99 2.8889 3 -3 1 31.35 62.42 2.8535 0 -1 3 31.40 68.32 2.8489 0 -3 1 31.40 20.76 2.8490 1 2 0 31.41 27.20 2.8478 2 1 0 31.42 28.37 2.8474 2 -1 2 31.76 23.99 2.8172 -2 2 2 31.80 30.66 2.8142 -2 3 1 32.41 3.52 2.7624 0 -2 3 32.44 6.20 2.7598 0 -3 2 32.49 1.17 2.7558 -3 0 1 33.05 11.70 2.7103 -3 3 1 33.37 40.92 2.6847 3 -1 1 33.47 20.03 2.6770 -1 2 2 33.46 2.29 2.6781 1 -2 3 34.19 21.27 2.6226 -3 2 2 34.44 69.15 2.6039 -2 0 3 34.44 5.84 2.6043 0 0 3 34.49 4.60 2.6003 0 3 0 34.49 15.96 2.6002 -3 0 2 34.53 28.10 2.5976 3 0 0 34.55 71.90 2.5962 2 -4 1 34.66 14.54 2.5877 -1 3 1 34.94 11.70 2.5676 1 -1 3 35.41 2.42 2.5351 -1 -2 3 35.92 3.36 2.4999 1 -3 3 36.36 55.24 2.4704 -2 -1 3 36.38 9.10 2.4694 -2 1 3 36.47 12.37 2.4634 -2 4 0 36.46 56.40 2.4641 2 -4 2 36.51 9.25 2.4609 -3 4 0 36.52 74.04 2.4603 -4 2 0 36.84 13.72 2.4398 -1 1 3 36.78 10.96 2.4431 3 -2 2 37.30 12.57 2.4102 0 -3 3 37.66 16.49 2.3883 2 1 1 37.66 13.65 2.3885 2 0 2 38.06 5.02 2.3641 -4 3 1 38.23 11.11 2.3538 -2 -2 2 38.25 19.24 2.3527 -2 -2 1 38.26 19.21 2.3522 2 -2 3 38.27 10.73 2.3516 2 -3 3 38.94 1.39 2.3127 3 -4 2 39.29 2.08 2.2929 -1 -3 1 39.58 4.79 2.2768 -3 1 3 39.90 1.76 2.2592 -3 -1 1 40.05 5.86 2.2508 -1 4 0 40.11 7.26 2.2479 -4 1 0 40.16 1.23 2.2451 -4 4 0 40.17 1.71 2.2447 -3 -1 2 40.13 4.73 2.2468 4 -2 1 40.65 1.38 2.2192 -4 1 2 40.68 2.29 2.2176 -3 4 1 40.74 2.84 2.2146 4 -4 1 40.85 1.02 2.2089 0 1 3 41.69 4.79 2.1663 -2 -2 3 41.71 3.73 2.1650 -2 2 3 41.74 2.11 2.1637 2 2 0 41.78 4.26 2.1618 -2 4 1 41.73 3.32 2.1643 1 -4 3 41.73 1.73 2.1642 2 -1 3 41.76 4.23 2.1627 2 -4 3 42.28 1.78 2.1371 0 -4 2 42.77 9.01 2.1138 0 -1 4 42.85 7.07 2.1103 0 -4 1 43.00 2.13 2.1029 3 1 0 43.62 4.11 2.0745 3 -5 1 43.85 6.31 2.0641 -1 0 4 43.98 2.36 2.0586 -4 0 1 44.03 1.92 2.0562 4 -3 2 44.39 68.57 2.0403 -2 0 4 44.49 8.39 2.0360 -4 0 2 44.52 68.77 2.0346 2 -5 1 44.58 9.55 2.0321 4 -4 2 44.80 79.40 2.0224 4 -1 1 44.93 2.89 2.0172 0 -3 4 44.96 2.63 2.0158 0 -4 3 45.78 4.54 1.9816 -5 3 1 45.81 2.22 1.9804 3 -2 3 45.91 1.01 1.9760 4 -5 1 46.48 2.41 1.9532 0 0 4 46.56 1.76 1.9502 0 4 0 46.61 1.53 1.9482 4 0 0 46.71 2.31 1.9441 -5 4 0 46.79 1.30 1.9410 1 2 2 47.25 19.88 1.9230 -2 1 4 47.37 20.98 1.9185 -2 5 0 47.44 3.50 1.9160 -5 2 0 47.62 1.87 1.9092 -3 4 2 47.80 2.96 1.9025 -2 -3 2 47.80 2.26 1.9021 2 -3 4 48.01 2.83 1.8943 -3 0 4 47.99 2.10 1.8951 -2 -2 4 48.07 3.27 1.8923 -4 0 3 48.07 1.67 1.8922 2 2 1 48.06 1.13 1.8927 2 0 3 48.10 1.75 1.8911 2 -5 3 48.10 4.47 1.8913 3 0 2 48.20 5.67 1.8875 4 -5 2 48.23 1.16 1.8862 5 -4 1 48.31 1.79 1.8835 -3 -2 2 48.47 2.41 1.8775 1 -5 1 48.65 15.93 1.8710 -4 4 2 48.63 1.40 1.8719 -1 1 4 49.04 3.49 1.8569 -5 3 2 49.06 2.63 1.8565 -2 -3 1 49.04 2.88 1.8570 2 -2 4 49.51 2.27 1.8406 -2 -3 3 49.52 7.86 1.8402 0 2 3 49.54 8.11 1.8394 0 3 2 49.55 3.09 1.8391 2 -4 4 50.24 1.50 1.8154 -3 5 1 50.32 8.14 1.8126 -4 3 3 50.40 7.32 1.8101 -4 5 1 50.47 1.03 1.8077 0 -4 4 50.82 1.64 1.7961 -5 5 0 51.02 1.23 1.7894 -4 -1 2 51.06 2.73 1.7881 5 -5 1 52.02 2.50 1.7575 4 0 1 52.11 1.50 1.7547 -1 5 0 52.02 2.24 1.7573 4 -1 2 52.58 2.89 1.7399 5 -4 2 53.12 4.29 1.7235 -4 -1 3 53.13 1.71 1.7232 2 3 0 53.15 4.79 1.7227 3 2 0 53.10 1.89 1.7240 2 -1 4 53.22 5.65 1.7204 3 -6 2 53.24 3.00 1.7199 4 -5 3 53.27 1.23 1.7190 0 -2 5 53.40 1.68 1.7151 -5 5 1 53.38 2.15 1.7158 -1 -1 5 53.40 5.20 1.7153 3 -4 4 53.50 2.13 1.7122 3 -3 4 53.98 6.53 1.6979 -2 -3 4 54.06 6.35 1.6957 2 -5 4 54.25 1.70 1.6902 -4 0 4 54.42 1.93 1.6853 4 -6 2 54.64 1.25 1.6790 -2 -1 5 54.93 4.51 1.6710 -5 3 3 54.88 7.50 1.6723 0 -1 5 54.98 6.55 1.6695 0 -5 1 55.19 2.84 1.6637 -4 2 4 55.20 2.22 1.6634 1 4 0 55.24 1.71 1.6623 4 1 0 55.33 1.61 1.6597 -4 6 0 55.24 2.98 1.6622 1 -3 5 55.36 1.82 1.6590 -6 3 1 55.39 1.84 1.6581 -6 4 0 55.70 8.65 1.6496 -5 0 2 55.82 1.50 1.6463 -1 2 4 56.17 1.26 1.6369 -5 0 1 56.33 4.13 1.6326 3 -2 4 56.45 1.83 1.6296 -2 -2 5 56.51 1.51 1.6279 5 -6 1 56.60 1.13 1.6255 -4 4 3 56.54 2.52 1.6270 2 2 2 56.53 2.42 1.6273 2 1 3 56.64 1.49 1.6245 -4 5 2 56.59 1.58 1.6258 2 -6 3 57.35 4.56 1.6060 -6 3 2 57.39 1.71 1.6049 -5 6 0 57.42 2.85 1.6041 -6 5 0 57.63 1.17 1.5989 6 -4 1 57.84 1.13 1.5937 -4 -1 4 57.77 1.75 1.5954 5 -2 2 57.90 3.45 1.5920 -5 0 3 57.89 1.44 1.5923 3 0 3 58.00 1.34 1.5896 4 -6 3 58.19 1.27 1.5847 -3 -3 2 58.23 1.55 1.5838 -1 5 1 58.23 20.52 1.5837 0 -4 5 58.27 19.03 1.5828 0 -5 4 58.43 1.67 1.5788 -6 2 2 58.55 7.74 1.5758 -3 -1 5 58.53 1.54 1.5765 6 -5 1 58.73 1.13 1.5715 -2 -4 2 58.71 1.16 1.5719 2 -3 5 58.82 5.54 1.5692 -3 -3 3 58.90 3.37 1.5673 -6 4 2 58.94 4.32 1.5663 -6 5 1 58.99 4.28 1.5651 1 -6 2 59.00 1.46 1.5648 1 -1 5 59.10 14.17 1.5625 -2 1 5 59.25 14.38 1.5590 -2 6 0 59.27 7.24 1.5585 5 0 0 59.33 2.22 1.5569 -6 2 0 59.36 3.36 1.5564 6 -3 1 59.32 1.91 1.5573 5 -4 3 59.59 1.26 1.5509 2 0 4 59.67 19.36 1.5490 4 0 2 59.66 3.31 1.5492 5 -5 3 59.81 12.73 1.5457 0 3 3 59.84 1.72 1.5449 1 -6 3 60.16 2.23 1.5375 -3 -3 1 60.46 1.02 1.5306 -4 -2 3 60.56 1.28 1.5283 4 -5 4 60.90 2.52 1.5206 -2 -4 1 60.86 2.38 1.5215 2 -2 5 61.14 1.78 1.5152 -1 1 5 61.17 1.43 1.5144 3 -6 4 61.40 1.37 1.5093 -1 -5 3 61.55 6.07 1.5061 5 -3 3 61.65 1.92 1.5039 3 -1 4 61.84 13.36 1.4997 -6 2 3 61.98 15.35 1.4966 6 -6 1 62.06 1.86 1.4949 -6 1 2 62.17 2.53 1.4925 6 -5 2 62.29 1.38 1.4899 -6 1 1 62.36 1.21 1.4884 6 -4 2 62.55 2.15 1.4844 5 -6 3 62.95 1.59 1.4759 -5 -1 2 63.80 1.81 1.4582 -4 -2 4 63.94 1.12 1.4553 4 -6 4 64.33 37.58 1.4475 -6 1 3 64.42 1.57 1.4457 -5 -1 1 64.40 27.79 1.4461 0 -5 5 64.48 37.59 1.4444 6 -6 2 64.58 2.24 1.4425 3 3 0 64.66 4.32 1.4410 3 -7 3 64.81 3.12 1.4380 -4 -1 5 64.75 3.29 1.4391 -1 -2 6 64.94 41.94 1.4353 -4 5 3 64.79 2.29 1.4383 3 -5 5 65.01 4.23 1.4339 -2 2 5 65.01 2.57 1.4340 4 -7 3 65.14 3.28 1.4315 -2 6 1 65.38 6.32 1.4267 0 -3 6 65.48 5.59 1.4248 0 -6 3 65.50 43.90 1.4245 2 4 0 65.45 42.86 1.4255 2 -1 5 65.72 4.83 1.4202 -7 4 0 66.33 5.68 1.4086 -4 4 4 66.29 1.13 1.4094 -1 -3 6 66.41 5.43 1.4071 -4 6 2 67.03 3.66 1.3956 3 1 3 67.53 1.22 1.3864 -3 -3 5 67.82 1.17 1.3812 0 -4 6 67.89 1.18 1.3799 0 -6 4 68.20 1.47 1.3743 1 3 3 68.96 1.79 1.3611 -6 1 4 69.09 2.07 1.3588 -3 -4 3 69.22 2.62 1.3566 -6 0 1 69.30 2.62 1.3553 6 -4 3 70.26 1.25 1.3391 2 -4 6 70.75 2.28 1.3309 -7 3 3 70.84 1.05 1.3294 2 -3 6 71.05 1.57 1.3262 -3 -4 4 71.22 1.35 1.3233 1 -7 3 71.84 6.12 1.3134 -4 -3 4 71.96 8.58 1.3115 4 -6 5 72.29 6.42 1.3064 2 4 1 72.23 7.93 1.3073 2 0 5 72.31 1.07 1.3060 1 1 5 72.51 1.24 1.3030 4 -3 5 72.69 2.44 1.3001 -6 0 4 72.78 1.25 1.2988 6 0 0 72.82 1.08 1.2981 6 -3 3 72.90 1.85 1.2970 6 -7 3 73.00 1.78 1.2954 -2 3 5 73.10 1.41 1.2938 -2 6 2 73.64 2.45 1.2857 7 -7 1 73.73 4.64 1.2843 -4 -1 6 74.26 5.13 1.2766 -7 6 2 74.89 1.64 1.2674 -7 5 3 75.03 4.75 1.2653 -4 5 4 75.07 3.95 1.2647 -4 6 3 75.00 1.24 1.2657 2 -7 5 75.10 1.69 1.2643 1 5 1 75.28 1.09 1.2618 3 -5 6 75.74 2.56 1.2552 -1 4 4 76.06 2.00 1.2506 -2 -5 5 76.12 1.43 1.2499 2 -6 6 76.26 4.20 1.2479 -4 -3 5 76.44 2.18 1.2455 -1 5 3 76.43 3.09 1.2456 4 -7 5 76.81 1.27 1.2403 -7 2 4 77.22 1.84 1.2347 -4 2 6 77.33 1.09 1.2333 -6 3 5 77.71 1.31 1.2282 -1 3 5 77.79 1.33 1.2271 -4 7 2 78.43 2.28 1.2187 2 3 3 78.41 1.64 1.2190 2 2 4 78.64 1.47 1.2160 -6 -1 4 78.84 1.25 1.2135 6 -7 4 79.14 1.24 1.2095 -1 -1 7 79.49 2.36 1.2051 0 -6 6 80.14 1.87 1.1970 7 -7 3 80.69 7.09 1.1902 -4 -4 3 80.74 7.88 1.1896 4 -5 6 81.31 1.07 1.1826 -2 0 7 81.89 1.14 1.1758 0 -1 7 82.05 1.08 1.1738 0 -7 1 82.28 3.20 1.1711 -2 -5 6 82.38 3.63 1.1700 2 -7 6 83.31 7.09 1.1593 0 4 4 84.07 1.39 1.1507 -7 3 5 84.33 1.21 1.1478 -4 0 7 84.31 1.20 1.1480 4 3 1 84.45 1.78 1.1464 -2 -6 2 84.37 1.91 1.1473 2 -3 7 85.19 2.36 1.1384 -6 2 6 86.28 1.08 1.1268 -6 0 6 87.31 1.01 1.1161 0 0 7 87.48 1.48 1.1144 0 7 0 87.59 1.53 1.1132 7 0 0 87.89 2.27 1.1102 -6 5 5 89.33 1.09 1.0960 -7 0 5 89.33 1.09 1.0960 -7 0 5 XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.