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-1 _database_code_amcsd 0001323 CELL PARAMETERS: 6.6837 7.7080 6.9671 90.940 117.750 91.360 SPACE GROUP: C-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 317.407 Density (g/cm3): 3.059 MAX. ABS. INTENSITY / VOLUME**2: 5.748000598 RIR: 0.612 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.37 4.66 6.1628 0 0 1 2 18.59 7.76 4.7718 -1 1 0 2 19.03 36.66 4.6645 -1 1 1 2 19.13 72.82 4.6394 -1 -1 1 2 19.25 27.44 4.6111 1 1 0 2 23.10 9.83 3.8511 0 2 0 2 26.69 2.54 3.3405 -2 0 1 2 26.92 48.60 3.3124 0 -2 1 2 27.42 36.97 3.2524 1 -1 1 2 27.69 44.64 3.2212 0 2 1 2 28.01 63.20 3.1855 -1 -1 2 2 28.26 29.14 3.1581 1 1 1 2 28.32 100.00 3.1519 -1 1 2 2 28.98 4.23 3.0814 0 0 2 2 30.24 98.43 2.9556 2 0 0 2 30.63 7.62 2.9184 -2 0 2 2 35.15 14.01 2.5530 -2 2 1 2 36.00 25.88 2.4949 -2 -2 1 2 36.79 9.35 2.4433 0 -2 2 2 37.70 34.76 2.3860 -1 3 0 2 37.70 1.84 2.3859 -2 2 0 2 37.96 5.79 2.3704 0 2 2 2 38.60 4.65 2.3323 -2 2 2 2 38.73 4.26 2.3249 1 3 0 2 39.07 5.82 2.3055 2 2 0 2 39.48 9.94 2.2822 2 0 1 2 40.11 3.69 2.2481 -2 0 3 2 41.17 7.45 2.1925 -1 1 3 2 42.76 22.79 2.1145 1 -3 1 2 43.22 7.89 2.0932 -3 -1 2 2 44.15 2.59 2.0514 -1 3 2 2 44.46 5.52 2.0376 1 3 1 2 45.40 2.06 1.9977 2 -2 1 2 46.64 25.75 1.9474 -2 -2 3 2 46.94 6.54 1.9356 -2 2 3 2 47.07 1.55 1.9307 2 2 1 2 47.20 6.94 1.9255 0 4 0 2 47.21 4.99 1.9254 -3 1 0 2 48.07 18.32 1.8929 3 1 0 2 50.07 2.71 1.8219 0 4 1 2 51.03 13.02 1.7896 0 2 3 2 52.08 1.59 1.7560 1 -3 2 2 52.66 20.42 1.7382 -2 0 4 2 54.07 2.58 1.6961 -1 3 3 2 54.68 1.24 1.6787 -3 3 2 2 54.98 3.17 1.6703 -4 0 2 2 55.16 4.26 1.6651 -1 -1 4 2 55.48 11.94 1.6562 0 -4 2 2 55.70 1.12 1.6502 -3 -3 2 2 55.77 1.51 1.6484 -1 1 4 2 55.84 1.23 1.6464 -3 -3 1 2 56.06 5.98 1.6406 3 -1 1 2 56.60 4.07 1.6262 2 -2 2 2 57.03 2.26 1.6148 3 1 1 2 57.16 14.72 1.6114 -2 4 2 2 57.19 6.81 1.6106 0 4 2 2 57.40 1.47 1.6054 -3 -1 4 2 57.49 8.26 1.6031 -2 -4 2 2 57.98 15.95 1.5906 -3 3 0 2 58.45 14.97 1.5791 2 2 2 2 58.57 9.52 1.5759 -2 2 4 2 59.45 1.38 1.5548 -3 3 3 2 60.05 2.24 1.5407 0 0 4 2 60.21 9.06 1.5370 3 3 0 2 60.97 9.32 1.5195 -4 -2 2 2 61.82 1.11 1.5007 2 -4 1 2 62.32 1.40 1.4898 -4 2 3 2 62.89 8.61 1.4778 4 0 0 2 62.98 3.80 1.4758 -4 -2 1 2 63.03 1.42 1.4748 -4 -2 3 2 63.78 10.86 1.4592 -4 0 4 2 64.43 2.47 1.4460 0 -2 4 2 65.14 2.72 1.4320 1 -5 1 2 65.18 8.03 1.4312 -1 -3 4 2 65.39 3.51 1.4271 0 -4 3 2 65.98 8.28 1.4158 -1 -5 2 2 66.77 7.22 1.4010 -1 5 2 2 66.83 6.03 1.3999 -1 3 4 2 67.02 3.71 1.3964 -4 2 0 2 67.68 3.29 1.3844 -3 -3 4 2 67.92 1.94 1.3800 -3 3 4 2 67.99 5.30 1.3788 3 -1 2 2 68.65 1.38 1.3671 -4 2 4 2 69.06 1.09 1.3601 3 1 2 2 69.51 4.09 1.3522 -3 -1 5 2 70.35 1.76 1.3383 2 -2 3 2 70.63 1.43 1.3335 1 -1 4 2 71.11 2.25 1.3257 2 -4 2 2 72.31 2.83 1.3067 1 -5 2 2 72.37 2.94 1.3058 2 2 3 2 72.69 1.88 1.3007 -2 2 5 2 73.22 3.49 1.2927 -1 -5 3 2 73.63 3.33 1.2865 -4 0 5 2 73.82 1.28 1.2837 0 6 0 2 74.16 4.83 1.2786 -3 5 1 2 74.30 10.19 1.2765 -4 4 2 2 74.38 5.14 1.2754 2 4 2 2 74.89 1.98 1.2679 -1 5 3 2 75.27 1.21 1.2625 1 5 2 2 76.08 3.81 1.2510 4 -2 1 2 76.23 7.72 1.2490 -3 -5 2 2 76.34 3.05 1.2474 -4 -4 2 2 76.45 4.80 1.2459 -5 -1 4 2 76.53 1.58 1.2448 -3 -5 1 2 78.02 1.06 1.2247 -4 -4 3 2 78.34 3.76 1.2206 -4 -4 1 2 78.41 1.42 1.2196 -4 2 5 2 79.07 3.13 1.2110 -3 5 3 2 79.20 4.04 1.2095 1 -3 4 2 80.03 2.45 1.1990 -1 -3 5 2 81.15 1.64 1.1852 0 4 4 2 82.01 4.76 1.1750 1 3 4 2 82.52 1.47 1.1690 -5 -3 3 2 82.61 2.30 1.1679 3 -1 3 2 82.84 2.78 1.1653 1 -5 3 2 83.00 2.58 1.1635 0 2 5 2 83.08 1.61 1.1625 2 6 0 2 83.12 2.70 1.1621 2 0 4 2 86.59 1.57 1.1242 1 5 3 2 86.59 1.67 1.1242 2 -2 4 2 88.79 1.06 1.1019 1 -1 5 2 88.92 1.81 1.1007 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.