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 AF-47 _database_code_amcsd 0001320 CELL PARAMETERS: 6.7130 7.7080 7.0194 91.310 117.930 91.770 SPACE GROUP: C-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 320.464 Density (g/cm3): 3.024 MAX. ABS. INTENSITY / VOLUME**2: 5.605541348 RIR: 0.604 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.29 6.90 6.1962 0 0 1 2 18.46 8.00 4.8056 -1 1 0 2 18.94 30.79 4.6858 -1 1 1 2 19.06 71.20 4.6559 -1 -1 1 2 19.33 20.11 4.5915 1 1 0 2 23.11 8.94 3.8487 0 2 0 2 26.57 5.38 3.3547 -2 0 1 2 26.75 50.79 3.3331 0 -2 1 2 27.22 46.11 3.2764 1 -1 1 2 27.77 61.97 3.2121 -1 -1 2 2 27.80 46.27 3.2091 0 2 1 2 28.20 100.00 3.1642 -1 1 2 2 28.34 28.44 3.1493 1 1 1 2 28.82 3.75 3.0981 0 0 2 2 30.17 90.17 2.9622 2 0 0 2 30.42 7.20 2.9381 -2 0 2 2 34.94 13.22 2.5679 -2 2 1 2 36.05 24.44 2.4916 -2 -2 1 2 36.45 8.98 2.4648 0 -2 2 2 37.43 1.35 2.4028 -2 2 0 2 37.54 37.25 2.3960 -1 3 0 2 38.05 7.00 2.3650 0 2 2 2 38.42 6.01 2.3429 -2 2 2 2 38.68 1.03 2.3280 -2 -2 2 2 38.90 3.40 2.3151 1 3 0 2 39.24 8.01 2.2958 2 2 0 2 39.40 11.51 2.2872 2 0 1 2 39.80 6.22 2.2650 -2 0 3 2 40.99 10.69 2.2016 -1 1 3 2 42.45 24.10 2.1296 1 -3 1 2 43.07 10.05 2.1004 -3 -1 2 2 44.17 4.12 2.0504 -1 3 2 2 44.72 4.14 2.0264 1 3 1 2 45.04 1.25 2.0127 2 -2 1 2 46.30 26.99 1.9610 -2 -2 3 2 46.75 4.48 1.9433 -2 2 3 2 46.96 4.11 1.9349 -3 1 0 2 47.23 6.78 1.9244 0 4 0 2 47.27 1.74 1.9228 2 2 1 2 47.84 1.37 1.9013 -3 1 3 2 48.10 16.41 1.8916 3 1 0 2 50.24 2.03 1.8162 0 4 1 2 51.06 13.53 1.7887 0 2 3 2 51.61 1.63 1.7708 1 -3 2 2 52.24 19.02 1.7512 -2 0 4 2 54.09 3.46 1.6956 -1 3 3 2 54.36 1.18 1.6877 -3 3 2 2 54.67 4.04 1.6789 -1 -1 4 2 54.72 3.97 1.6774 -4 0 2 2 55.11 12.14 1.6666 0 -4 2 2 55.50 1.33 1.6556 -1 1 4 2 55.68 1.04 1.6507 -3 -3 2 2 55.77 7.35 1.6482 3 -1 1 2 56.14 4.39 1.6382 2 -2 2 2 56.93 2.11 1.6175 -3 -1 4 2 57.04 15.46 1.6147 -2 4 2 2 57.08 2.84 1.6137 3 1 1 2 57.42 8.92 1.6049 -2 -4 2 2 57.43 7.02 1.6046 0 4 2 2 57.54 17.58 1.6019 -3 3 0 2 58.32 10.26 1.5821 -2 2 4 2 58.63 16.12 1.5746 2 2 2 2 59.15 2.02 1.5619 -3 3 3 2 59.69 1.97 1.5491 0 0 4 2 60.49 9.13 1.5305 3 3 0 2 60.92 11.24 1.5208 -4 -2 2 2 61.32 1.43 1.5117 2 -4 1 2 61.52 1.04 1.5074 -1 5 0 2 61.89 1.12 1.4991 -4 2 3 2 62.73 7.51 1.4811 4 0 0 2 63.05 3.30 1.4743 -4 -2 1 2 63.31 10.14 1.4691 -4 0 4 2 63.82 3.18 1.4585 0 -2 4 2 64.55 7.91 1.4438 -1 -3 4 2 64.78 2.79 1.4391 1 -5 1 2 64.81 4.26 1.4386 0 -4 3 2 65.77 8.71 1.4198 -1 -5 2 2 66.57 4.05 1.4046 -4 2 0 2 66.80 4.83 1.4004 -1 3 4 2 66.87 7.02 1.3991 -1 5 2 2 67.21 3.65 1.3929 -3 -3 4 2 67.61 1.75 1.3857 -3 3 4 2 67.64 5.69 1.3852 3 -1 2 2 68.18 1.98 1.3755 -4 2 4 2 68.88 4.13 1.3632 -3 -1 5 2 69.06 1.50 1.3600 3 1 2 2 69.77 1.66 1.3479 2 -2 3 2 70.12 1.45 1.3420 1 -1 4 2 70.45 2.07 1.3366 2 -4 2 2 71.24 1.14 1.3236 -5 1 2 2 71.74 2.98 1.3157 1 -5 2 2 72.22 1.05 1.3082 -5 -1 2 2 72.36 2.17 1.3060 -2 2 5 2 72.49 2.86 1.3038 2 2 3 2 72.75 3.19 1.2998 -1 -5 3 2 73.01 5.21 1.2959 -4 0 5 2 73.73 4.96 1.2851 -3 5 1 2 73.80 11.00 1.2840 -4 4 2 2 73.87 1.41 1.2829 0 6 0 2 74.83 5.22 1.2688 2 4 2 2 75.06 2.29 1.2655 -1 5 3 2 75.57 3.76 1.2582 4 -2 1 2 75.99 5.01 1.2524 -5 -1 4 2 76.32 8.03 1.2477 -3 -5 2 2 76.46 2.67 1.2458 -4 -4 2 2 76.84 1.43 1.2406 -3 -5 1 2 77.85 1.24 1.2270 -4 2 5 2 77.91 1.28 1.2261 -4 -4 3 2 78.39 4.60 1.2199 1 -3 4 2 78.64 4.49 1.2166 -4 -4 1 2 78.82 3.09 1.2143 -3 5 3 2 79.17 2.99 1.2098 -1 -3 5 2 80.00 1.01 1.1994 3 3 2 2 81.38 1.98 1.1825 0 4 4 2 82.03 2.98 1.1747 1 -5 3 2 82.15 3.11 1.1733 3 -1 3 2 82.18 4.05 1.1729 1 3 4 2 82.39 1.44 1.1704 -5 -3 3 2 82.76 1.96 1.1662 2 0 4 2 82.84 2.99 1.1653 0 2 5 2 82.85 1.40 1.1651 -5 3 1 2 83.52 1.84 1.1575 2 6 0 2 84.43 5.99 1.1473 -5 3 4 2 85.85 1.41 1.1320 2 -2 4 2 87.08 1.40 1.1191 1 5 3 2 88.10 1.40 1.1087 1 -1 5 2 88.91 1.08 1.1008 2 2 4 2 89.45 1.36 1.0955 -5 3 0 2 89.51 2.11 1.0949 2 6 1 2 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.