Ludwigite Irwin M B, Peterson R C The Canadian Mineralogist 37 (1999) 939-943 The crystal structure of ludwigite Locality: Crestmore quarry, California, USA _database_code_amcsd 0005628 CELL PARAMETERS: 9.2411 12.2948 3.0213 90.000 90.000 90.000 SPACE GROUP: Pbam X-RAY WAVELENGTH: 1.541838 Cell Volume: 343.272 Density (g/cm3): 3.912 MAX. ABS. INTENSITY / VOLUME**2: 14.85191416 RIR: 1.236 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 11.98 12.06 7.3871 1 1 0 4 14.41 10.11 6.1474 0 2 0 2 17.33 100.00 5.1184 1 2 0 4 19.21 1.68 4.6206 2 0 0 2 29.05 3.21 3.0737 0 4 0 2 29.57 27.63 3.0213 0 0 1 2 29.90 11.29 2.9880 3 1 0 4 30.65 5.29 2.9166 1 4 0 4 32.00 8.96 2.7964 1 1 1 8 32.51 13.88 2.7540 3 2 0 4 33.04 7.15 2.7115 0 2 1 4 34.47 1.12 2.6018 1 2 1 8 35.06 87.75 2.5592 2 4 0 4 35.50 71.08 2.5287 2 0 1 4 36.27 1.41 2.4768 2 1 1 8 37.86 2.31 2.3763 1 5 0 4 38.27 7.63 2.3518 1 3 1 8 38.50 9.18 2.3386 2 2 1 8 38.99 7.11 2.3103 4 0 0 2 41.60 23.37 2.1707 2 5 0 4 41.77 1.29 2.1626 4 2 0 4 41.93 9.04 2.1547 0 4 1 4 41.98 5.72 2.1520 2 3 1 8 42.55 24.48 2.1245 3 1 1 8 44.52 57.20 2.0353 3 2 1 8 45.33 13.73 2.0005 1 6 0 4 46.50 14.96 1.9528 2 4 1 8 47.30 4.00 1.9217 3 5 0 4 47.64 25.44 1.9087 3 3 1 8 48.61 6.22 1.8732 2 6 0 4 48.75 1.37 1.8678 1 5 1 8 49.68 2.81 1.8352 4 0 1 4 51.64 7.99 1.7700 5 2 0 4 51.78 2.18 1.7656 3 4 1 8 51.86 1.64 1.7629 2 5 1 8 52.00 11.39 1.7585 4 2 1 8 53.07 1.17 1.7255 1 7 0 4 53.73 3.17 1.7061 3 6 0 4 55.06 9.51 1.6680 1 6 1 8 57.92 5.72 1.5920 2 6 1 8 58.58 24.51 1.5757 4 4 1 8 60.21 7.28 1.5368 0 8 0 2 60.64 16.35 1.5272 5 2 1 8 61.13 2.37 1.5160 1 8 0 4 61.37 24.64 1.5107 0 0 2 2 61.93 23.30 1.4984 1 7 1 8 62.52 7.57 1.4856 3 6 1 8 62.91 3.73 1.4774 5 5 0 4 63.19 17.07 1.4715 5 3 1 8 63.22 1.31 1.4708 4 5 1 8 64.29 5.21 1.4489 1 2 2 8 68.09 15.95 1.3770 6 4 0 4 68.35 1.04 1.3724 5 6 0 4 68.36 1.61 1.3722 6 0 1 4 68.50 4.78 1.3698 0 8 1 4 68.95 2.05 1.3620 3 7 1 8 69.35 3.26 1.3550 1 8 1 8 69.76 1.30 1.3481 3 1 2 8 70.29 1.18 1.3392 6 2 1 8 71.02 1.21 1.3272 5 5 1 8 71.19 2.66 1.3245 3 2 2 8 71.89 3.53 1.3133 2 8 1 8 72.40 1.34 1.3053 6 5 0 4 72.68 16.71 1.3009 2 4 2 8 73.35 2.94 1.2907 7 2 0 4 74.09 4.35 1.2796 4 8 0 4 75.14 2.80 1.2643 4 0 2 4 75.94 3.13 1.2530 6 4 1 8 76.19 1.44 1.2496 5 6 1 8 76.24 1.37 1.2488 3 9 0 4 76.89 3.71 1.2399 2 5 2 8 79.51 3.73 1.2056 1 6 2 8 79.64 1.93 1.2039 7 1 1 8 80.95 1.06 1.1876 3 5 2 8 81.73 2.19 1.1783 4 8 1 8 81.93 2.01 1.1759 2 6 2 8 83.73 5.44 1.1551 8 0 0 2 84.28 2.87 1.1490 5 2 2 8 84.93 1.32 1.1419 3 10 0 4 85.94 1.37 1.1310 3 6 2 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.