Derbylite Biagioni C, Bonaccorsi E, Perchiazzi N, Halenius U, Zaccarini F Mineralogical Magazine 84 (2020) 766-777 Derbylite and graeserite from the Monte Arsiccio mine, Apuan Alps, Tuscany, Italy: occurrence and crystal-chemistry Locality: Monte Arsiccio mine, Apuan Alps, Italy _database_code_amcsd 0020902 CELL PARAMETERS: 7.1690 14.3515 4.9867 90.000 104.820 90.000 SPACE GROUP: P2_1/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 495.994 Density (g/cm3): 4.809 MAX. ABS. INTENSITY / VOLUME**2: 26.36467655 RIR: 1.785 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.19 4.51 6.2409 1 1 0 4 17.79 5.03 4.9851 1 2 0 4 18.40 5.02 4.8208 0 0 1 2 19.56 3.75 4.5390 -1 0 1 2 20.52 3.37 4.3277 -1 1 1 4 22.22 6.15 4.0016 0 2 1 4 22.58 1.42 3.9370 1 3 0 4 23.19 5.48 3.8360 -1 2 1 4 24.82 3.79 3.5879 0 4 0 2 25.05 1.17 3.5543 1 0 1 2 25.71 4.55 3.4653 2 0 0 2 25.82 1.90 3.4500 1 1 1 4 26.24 1.77 3.3957 0 3 1 4 26.46 3.51 3.3685 2 1 0 4 27.08 1.06 3.2927 -1 3 1 4 27.59 1.47 3.2328 -2 0 1 2 28.00 26.75 3.1862 1 4 0 4 28.02 2.81 3.1850 1 2 1 4 28.61 53.48 3.1205 2 2 0 4 30.32 2.23 2.9475 -2 2 1 4 31.07 2.65 2.8782 0 4 1 4 31.35 100.00 2.8530 1 3 1 4 31.79 3.33 2.8147 -1 4 1 4 33.45 92.10 2.6785 -2 3 1 4 36.13 8.78 2.4862 2 1 1 4 36.19 32.15 2.4821 -1 0 2 2 36.43 13.21 2.4663 0 5 1 4 37.06 5.88 2.4260 -1 5 1 4 37.60 12.94 2.3919 0 6 0 2 38.37 1.92 2.3458 -1 2 2 4 38.99 2.69 2.3102 3 0 0 2 39.20 5.97 2.2982 -3 1 1 4 39.44 1.02 2.2849 0 2 2 4 39.51 1.26 2.2808 3 1 0 4 39.72 1.73 2.2695 -2 0 2 2 39.87 4.10 2.2610 1 6 0 4 40.39 21.89 2.2331 1 5 1 4 41.04 1.84 2.1990 3 2 0 4 42.10 7.18 2.1464 -2 5 1 4 42.75 2.54 2.1150 1 0 2 2 43.21 1.80 2.0935 -3 3 1 4 44.38 1.00 2.0413 -1 4 2 4 44.67 17.13 2.0287 1 2 2 4 45.33 7.12 2.0008 0 4 2 4 46.77 1.35 1.9424 3 4 0 4 47.01 7.28 1.9330 -3 0 2 2 47.40 6.10 1.9180 -2 4 2 4 48.00 2.24 1.8956 2 5 1 4 48.24 1.82 1.8867 0 7 1 4 48.26 4.45 1.8858 3 1 1 4 48.74 1.01 1.8685 -1 7 1 4 48.79 7.72 1.8665 -3 2 2 4 50.47 6.99 1.8082 -3 5 1 4 50.73 1.11 1.7997 3 5 0 4 51.42 13.19 1.7771 2 0 2 2 51.46 2.73 1.7759 1 7 1 4 51.69 3.37 1.7685 -4 1 1 4 51.71 1.64 1.7677 3 3 1 4 52.71 2.93 1.7367 1 8 0 4 52.84 1.16 1.7326 4 0 0 2 52.88 4.13 1.7314 -2 7 1 4 53.18 12.96 1.7224 -1 6 2 4 54.99 1.90 1.6699 -4 3 1 4 55.28 3.93 1.6617 3 6 0 4 55.84 5.47 1.6464 -2 6 2 4 56.97 10.84 1.6164 -4 0 2 2 57.88 16.27 1.5931 2 8 0 4 57.95 1.10 1.5915 2 7 1 4 58.18 28.04 1.5857 3 5 1 4 58.53 1.04 1.5769 -4 2 2 4 59.22 1.04 1.5602 4 4 0 4 60.13 1.54 1.5387 -2 3 3 4 60.14 3.19 1.5387 -3 7 1 4 60.81 11.57 1.5233 0 3 3 4 61.22 18.72 1.5140 -4 5 1 4 61.22 1.65 1.5139 0 9 1 4 61.68 2.33 1.5037 4 1 1 4 62.39 2.88 1.4885 3 0 2 2 62.96 2.72 1.4762 1 1 3 4 64.61 9.32 1.4426 -3 3 3 4 64.65 2.30 1.4418 4 3 1 4 64.83 15.85 1.4381 -1 5 3 4 64.98 10.62 1.4351 0 10 0 2 65.45 3.24 1.4259 -5 1 1 4 66.07 1.35 1.4141 -2 5 3 4 66.43 2.86 1.4074 -2 8 2 4 68.33 2.53 1.3728 -5 3 1 4 68.60 9.08 1.3681 1 8 2 4 69.01 3.90 1.3609 5 2 0 4 69.76 1.43 1.3482 2 9 1 4 70.38 2.98 1.3378 4 5 1 4 70.99 1.63 1.3277 2 1 3 4 71.74 1.53 1.3156 -3 9 1 4 71.79 4.84 1.3149 -3 8 2 4 75.11 1.21 1.2647 0 7 3 4 75.49 2.10 1.2594 0 11 1 4 76.66 3.98 1.2431 4 2 2 4 76.70 3.02 1.2424 -1 10 2 4 76.80 2.67 1.2411 -2 0 4 2 79.21 1.98 1.2093 5 3 1 4 79.21 2.99 1.2093 2 5 3 4 79.78 1.57 1.2020 -3 0 4 2 80.88 1.89 1.1886 0 2 4 4 81.83 1.04 1.1771 -5 3 3 4 83.38 1.42 1.1591 -6 3 1 4 83.74 1.91 1.1551 6 0 0 2 83.98 1.05 1.1523 -3 10 2 4 84.27 1.50 1.1491 -6 2 2 4 85.12 1.09 1.1398 -3 4 4 4 85.17 1.11 1.1392 1 0 4 2 85.59 1.57 1.1348 -4 0 4 2 87.15 2.65 1.1184 -5 5 3 4 87.33 1.87 1.1165 2 10 2 4 88.82 1.38 1.1016 -2 6 4 4 89.31 4.24 1.0968 5 8 0 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.