Montebrasite Groat L A, Raudsepp M, Hawthorne F C, Ercit T S, Sherriff B L, Hartman J S American Mineralogist 75 (1990) 992-1008 The amblygonite-montebrasite series: Characterization by single-crystal structure refinement, infrared spectroscopy and multinuclear MAS-NMR spectroscopy sample A-2 _database_code_amcsd 0001322 CELL PARAMETERS: 6.6984 7.7100 6.9830 91.060 117.810 91.490 SPACE GROUP: C-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 318.682 Density (g/cm3): 3.053 MAX. ABS. INTENSITY / VOLUME**2: 5.584745740 RIR: 0.596 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.35 5.04 6.1728 0 0 1 2 18.54 9.04 4.7854 -1 1 0 2 18.99 34.99 4.6728 -1 1 1 2 19.10 70.51 4.6465 -1 -1 1 2 19.26 24.42 4.6076 1 1 0 2 23.09 9.63 3.8514 0 2 0 2 26.63 3.89 3.3477 -2 0 1 2 26.86 51.59 3.3196 0 -2 1 2 27.35 41.53 3.2611 1 -1 1 2 27.72 47.24 3.2179 0 2 1 2 27.93 63.43 3.1940 -1 -1 2 2 28.27 28.92 3.1563 1 1 1 2 28.28 100.00 3.1557 -1 1 2 2 28.93 4.36 3.0864 0 0 2 2 30.19 96.78 2.9601 2 0 0 2 30.55 7.83 2.9258 -2 0 2 2 35.06 13.72 2.5592 -2 2 1 2 35.99 25.53 2.4953 -2 -2 1 2 36.68 9.15 2.4502 0 -2 2 2 37.59 1.62 2.3927 -2 2 0 2 37.64 36.41 2.3900 -1 3 0 2 37.99 6.38 2.3687 0 2 2 2 38.53 5.37 2.3364 -2 2 2 2 38.77 3.78 2.3226 1 3 0 2 39.10 6.81 2.3038 2 2 0 2 39.43 11.02 2.2851 2 0 1 2 40.01 4.84 2.2536 -2 0 3 2 41.12 8.90 2.1952 -1 1 3 2 42.65 23.89 2.1199 1 -3 1 2 43.14 9.03 2.0969 -3 -1 2 2 44.15 3.23 2.0513 -1 3 2 2 44.53 5.08 2.0346 1 3 1 2 45.26 1.69 2.0034 2 -2 1 2 46.52 26.53 1.9520 -2 -2 3 2 46.87 5.91 1.9382 -2 2 3 2 47.09 4.63 1.9299 -3 1 0 2 47.11 1.58 1.9291 2 2 1 2 47.20 6.85 1.9257 0 4 0 2 48.04 17.82 1.8939 3 1 0 2 48.05 1.10 1.8935 -3 1 3 2 50.11 2.40 1.8205 0 4 1 2 51.04 13.54 1.7892 0 2 3 2 51.92 1.68 1.7610 1 -3 2 2 52.53 20.55 1.7422 -2 0 4 2 54.07 2.84 1.6960 -1 3 3 2 54.55 1.32 1.6824 -3 3 2 2 54.85 3.45 1.6739 -4 0 2 2 55.01 4.28 1.6692 -1 -1 4 2 55.35 12.26 1.6598 0 -4 2 2 55.66 1.15 1.6513 -3 -3 2 2 55.69 1.44 1.6504 -1 1 4 2 55.85 1.11 1.6460 -3 -3 1 2 55.93 6.52 1.6440 3 -1 1 2 56.43 4.27 1.6306 2 -2 2 2 57.01 2.53 1.6154 3 1 1 2 57.11 15.23 1.6129 -2 4 2 2 57.24 1.64 1.6095 -3 -1 4 2 57.26 7.16 1.6089 0 4 2 2 57.44 8.63 1.6042 -2 -4 2 2 57.80 16.94 1.5951 -3 3 0 2 58.48 15.43 1.5782 2 2 2 2 58.50 9.94 1.5779 -2 2 4 2 59.33 1.62 1.5576 -3 3 3 2 59.94 2.21 1.5432 0 0 4 2 60.26 9.28 1.5359 3 3 0 2 60.91 10.25 1.5210 -4 -2 2 2 61.64 1.22 1.5048 2 -4 1 2 62.15 1.23 1.4936 -4 2 3 2 62.78 8.45 1.4800 4 0 0 2 62.92 1.20 1.4772 -4 -2 3 2 62.95 3.68 1.4765 -4 -2 1 2 63.60 10.91 1.4629 -4 0 4 2 64.24 2.78 1.4499 0 -2 4 2 64.98 8.12 1.4352 -1 -3 4 2 65.01 2.79 1.4347 1 -5 1 2 65.20 3.77 1.4309 0 -4 3 2 65.90 8.63 1.4174 -1 -5 2 2 66.79 7.27 1.4007 -1 5 2 2 66.82 5.63 1.4000 -1 3 4 2 66.82 3.83 1.4000 -4 2 0 2 67.51 3.56 1.3874 -3 -3 4 2 67.81 1.97 1.3820 -3 3 4 2 67.84 5.48 1.3815 3 -1 2 2 68.47 1.59 1.3703 -4 2 4 2 69.02 1.29 1.3607 3 1 2 2 69.31 4.06 1.3558 -3 -1 5 2 70.15 1.72 1.3416 2 -2 3 2 70.47 1.48 1.3363 1 -1 4 2 70.87 2.21 1.3296 2 -4 2 2 72.11 2.97 1.3099 1 -5 2 2 72.39 2.88 1.3054 2 2 3 2 72.59 2.03 1.3023 -2 2 5 2 73.05 3.35 1.2952 -1 -5 3 2 73.42 4.03 1.2897 -4 0 5 2 73.81 1.34 1.2838 0 6 0 2 73.98 4.93 1.2812 -3 5 1 2 74.09 10.69 1.2796 -4 4 2 2 74.50 5.41 1.2736 2 4 2 2 74.94 2.11 1.2673 -1 5 3 2 75.40 1.04 1.2607 1 5 2 2 75.86 3.84 1.2541 4 -2 1 2 76.22 7.97 1.2491 -3 -5 2 2 76.25 5.00 1.2487 -5 -1 4 2 76.32 2.94 1.2477 -4 -4 2 2 76.59 1.53 1.2440 -3 -5 1 2 77.94 1.13 1.2258 -4 -4 3 2 78.21 1.32 1.2222 -4 2 5 2 78.38 4.03 1.2201 -4 -4 1 2 78.93 4.34 1.2129 1 -3 4 2 78.97 3.18 1.2124 -3 5 3 2 79.76 2.71 1.2023 -1 -3 5 2 81.22 1.84 1.1844 0 4 4 2 82.06 4.63 1.1744 1 3 4 2 82.41 1.45 1.1702 -5 -3 3 2 82.43 2.55 1.1700 3 -1 3 2 82.56 2.87 1.1685 1 -5 3 2 82.95 2.73 1.1640 0 2 5 2 82.99 2.48 1.1636 2 0 4 2 83.19 1.72 1.1613 2 6 0 2 83.22 1.19 1.1609 -5 3 1 2 84.81 5.83 1.1432 -5 3 4 2 86.33 1.54 1.1269 2 -2 4 2 86.73 1.48 1.1228 1 5 3 2 88.57 1.18 1.1041 1 -1 5 2 89.07 1.88 1.0992 2 6 1 2 89.86 1.44 1.0916 -5 3 0 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.