Stringhamite Diffraction data computed using the structure from the paper listed below, along with the cell parameters refined from single crystal data of R110018 Hawthorne F C Tschermaks Mineralogische und Petrographische Mitteilungen 34 (1985) 15-24 The crystal structure of stringhamite Locality: Christmas mine, Pinal County, Arizona, USA _database_code_amcsd 0015701 CELL PARAMETERS: 5.0230 16.1290 5.3362 90.000 103.000 90.000 SPACE GROUP: P2_1/c ATOM X Y Z OCCUPANCY ISO(B) Ca 0.64960 0.17671 0.34640 1.000 0.703 Cu 0.00000 0.00000 0.50000 1.000 0.719 Cu 0.50000 0.00000 0.00000 1.000 0.734 Si 0.98020 0.11123 -0.02900 1.000 0.592 O 0.89950 0.20580 0.02680 1.000 0.869 O 0.84610 0.08530 0.67400 1.000 1.026 O 0.31290 0.10230 0.03830 1.000 0.790 O 0.84190 0.05410 0.16910 1.000 0.711 O 0.35250 0.20940 0.62570 1.000 1.105 H 0.31900 0.31600 0.22200 1.000 0.790 H 0.18400 0.25800 0.08100 1.000 0.790 X-RAY WAVELENGTH: 1.541838 BOUNDS ON TWO THETA: 5.0 90.0 LIMITS IMPOSED ON THE INDICES ARE: +/- 4 +/- 14 +/- 4 MAX. ABS. INTENSITY / VOLUME**2: 17.79488403 The INTENSITY cut off value is 1.00 2-THETA INTENSITY D-SPACING H K L 10.97 57.08 8.0645 0 2 0 17.92 20.68 4.9487 0 1 1 18.13 5.67 4.8943 1 0 0 18.95 18.81 4.6834 1 1 0 20.32 5.21 4.3699 0 2 1 21.24 12.96 4.1840 1 2 0 22.04 5.42 4.0322 0 4 0 22.65 39.43 3.9253 -1 1 1 24.60 2.19 3.6192 1 3 0 24.61 16.90 3.6171 -1 2 1 27.59 53.02 3.2333 -1 3 1 28.00 3.81 3.1864 0 4 1 28.26 5.41 3.1582 1 1 1 28.68 2.10 3.1121 1 4 0 32.41 100.00 2.7628 1 3 1 32.67 13.58 2.7411 0 5 1 33.33 8.42 2.6882 0 6 0 34.50 19.47 2.5997 0 0 2 35.26 8.16 2.5454 -1 0 2 35.59 43.21 2.5225 -1 5 1 36.31 15.44 2.4743 0 2 2 36.73 6.55 2.4471 2 0 0 37.04 13.76 2.4273 -1 2 2 37.16 1.21 2.4194 2 1 0 37.34 3.61 2.4080 -2 1 1 37.67 1.24 2.3879 0 6 1 38.20 6.75 2.3562 1 6 0 38.44 17.11 2.3417 2 2 0 38.62 1.94 2.3313 -2 2 1 39.16 1.97 2.3006 -1 3 2 40.28 4.22 2.2392 -1 6 1 40.50 2.69 2.2273 2 3 0 40.67 13.62 2.2183 -2 3 1 41.32 5.81 2.1850 0 4 2 41.98 1.14 2.1524 -1 4 2 43.25 7.39 2.0920 2 4 0 43.29 1.69 2.0901 1 1 2 43.41 4.92 2.0847 1 7 0 44.77 5.90 2.0242 0 5 2 45.29 10.48 2.0023 -1 7 1 45.79 4.49 1.9814 2 2 1 46.26 15.46 1.9626 -2 2 2 46.26 1.22 1.9624 1 3 2 46.58 4.30 1.9496 2 5 0 48.04 1.66 1.8938 -2 3 2 48.42 2.83 1.8798 0 8 1 48.58 11.33 1.8739 1 7 1 48.73 3.11 1.8688 0 6 2 48.86 1.13 1.8642 1 8 0 49.30 2.82 1.8483 -1 6 2 50.43 5.03 1.8096 2 6 0 50.46 4.72 1.8085 -2 4 2 52.18 4.85 1.7529 -1 1 3 53.15 2.87 1.7232 0 1 3 53.45 1.18 1.7142 -2 5 2 53.65 1.40 1.7082 -1 7 2 54.13 3.11 1.6943 0 9 1 54.72 2.14 1.6775 2 7 0 54.79 2.89 1.6755 -1 3 3 55.40 3.41 1.6586 -3 1 1 55.72 6.20 1.6496 0 3 3 56.34 1.37 1.6329 -3 2 1 56.40 1.70 1.6314 3 0 0 56.96 2.01 1.6167 -2 6 2 57.00 1.98 1.6156 -1 4 3 57.11 7.43 1.6129 0 10 0 57.21 14.25 1.6102 2 0 2 57.65 1.34 1.5990 3 2 0 57.88 10.61 1.5932 0 8 2 57.90 1.93 1.5926 -3 3 1 58.45 1.81 1.5791 2 2 2 58.98 5.32 1.5660 1 9 1 59.40 8.50 1.5560 2 8 0 59.43 1.01 1.5553 1 7 2 59.77 13.64 1.5472 -1 5 3 60.85 2.97 1.5223 1 1 3 61.30 1.06 1.5123 3 4 0 61.75 1.01 1.5023 1 2 3 61.93 1.81 1.4983 -1 10 1 62.06 1.31 1.4954 2 4 2 62.73 15.60 1.4812 -3 5 1 63.22 3.67 1.4708 1 3 3 63.78 1.40 1.4593 3 1 1 65.34 9.35 1.4282 -2 8 2 66.09 2.82 1.4137 3 3 1 66.81 1.88 1.4003 -1 7 3 67.83 3.43 1.3817 1 5 3 67.85 3.17 1.3814 2 6 2 68.00 2.23 1.3786 -1 11 1 68.46 6.05 1.3706 0 10 2 68.92 1.04 1.3624 -1 10 2 69.60 1.26 1.3508 -3 7 1 69.84 3.13 1.3467 2 10 0 70.58 1.43 1.3345 1 11 1 70.60 6.41 1.3341 3 5 1 72.20 4.67 1.3084 -3 3 3 73.15 1.01 1.2937 -1 3 4 73.84 2.87 1.2833 0 2 4 74.47 2.13 1.2741 1 7 3 74.57 3.56 1.2727 -2 0 4 75.36 1.65 1.2613 -2 10 2 75.65 1.40 1.2571 -2 2 4 76.55 1.68 1.2445 -3 5 3 77.14 1.14 1.2364 3 7 1 78.56 3.61 1.2176 -4 0 2 79.18 2.85 1.2097 4 2 0 79.63 1.58 1.2040 -4 2 2 81.07 2.18 1.1862 -1 13 1 83.50 3.76 1.1577 1 13 1 84.17 1.45 1.1503 -2 6 4 85.14 2.30 1.1396 2 10 2 86.28 1.31 1.1274 -1 11 3 88.88 1.01 1.1011 -3 11 1 89.77 2.91 1.0925 0 8 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.