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-46 _database_code_amcsd 0001324 CELL PARAMETERS: 6.6782 7.7159 6.9490 90.820 117.660 91.220 SPACE GROUP: C-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 316.959 Density (g/cm3): 3.067 MAX. ABS. INTENSITY / VOLUME**2: 5.853308743 RIR: 0.621 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.40 3.42 6.1526 0 0 1 2 18.62 8.27 4.7650 -1 1 0 2 19.05 37.21 4.6594 -1 1 1 2 19.14 70.62 4.6361 -1 -1 1 2 19.20 27.89 4.6220 1 1 0 2 23.07 9.94 3.8556 0 2 0 2 26.71 2.08 3.3378 -2 0 1 2 26.95 48.40 3.3080 0 -2 1 2 27.47 34.48 3.2468 1 -1 1 2 27.64 43.74 3.2277 0 2 1 2 28.09 62.50 3.1770 -1 -1 2 2 28.21 29.03 3.1634 1 1 1 2 28.35 98.11 3.1479 -1 1 2 2 29.03 4.32 3.0763 0 0 2 2 30.23 100.00 2.9560 2 0 0 2 30.70 8.03 2.9122 -2 0 2 2 35.20 13.82 2.5499 -2 2 1 2 35.95 25.25 2.4980 -2 -2 1 2 36.88 9.31 2.4374 0 -2 2 2 37.72 33.74 2.3849 -1 3 0 2 37.76 2.07 2.3825 -2 2 0 2 37.91 5.58 2.3733 0 2 2 2 38.63 4.59 2.3305 1 3 0 2 38.65 4.23 2.3297 -2 2 2 2 38.97 5.33 2.3110 2 2 0 2 39.48 9.40 2.2824 2 0 1 2 40.22 3.11 2.2423 -2 0 3 2 41.23 6.62 2.1895 -1 1 3 2 42.83 22.24 2.1114 1 -3 1 2 43.25 7.62 2.0919 -3 -1 2 2 44.11 2.14 2.0529 -1 3 2 2 44.33 5.92 2.0432 1 3 1 2 45.48 2.24 1.9945 2 -2 1 2 46.74 24.98 1.9433 -2 -2 3 2 46.96 1.26 1.9350 2 2 1 2 47.00 7.07 1.9333 -2 2 3 2 47.14 6.83 1.9278 0 4 0 2 47.24 5.03 1.9239 -3 1 0 2 48.01 18.56 1.8950 3 1 0 2 49.96 2.88 1.8254 0 4 1 2 51.01 12.41 1.7905 0 2 3 2 52.20 1.58 1.7523 1 -3 2 2 52.81 20.85 1.7337 -2 0 4 2 54.04 2.34 1.6969 -1 3 3 2 54.74 1.36 1.6768 -3 3 2 2 55.02 2.80 1.6689 -4 0 2 2 55.33 4.31 1.6605 -1 -1 4 2 55.56 11.78 1.6540 0 -4 2 2 55.66 1.27 1.6512 -3 -3 2 2 55.73 1.30 1.6493 -3 -3 1 2 55.86 1.54 1.6459 -1 1 4 2 56.10 5.35 1.6394 3 -1 1 2 56.70 4.22 1.6234 2 -2 2 2 56.97 2.10 1.6165 3 1 1 2 57.07 6.80 1.6138 0 4 2 2 57.16 14.51 1.6114 -2 4 2 2 57.47 8.15 1.6037 -2 -4 2 2 57.55 1.22 1.6014 -3 -1 4 2 58.07 15.60 1.5883 -3 3 0 2 58.34 14.54 1.5817 2 2 2 2 58.66 8.96 1.5739 -2 2 4 2 59.52 1.18 1.5531 -3 3 3 2 60.05 9.48 1.5407 3 3 0 2 60.16 2.29 1.5381 0 0 4 2 60.95 8.92 1.5201 -4 -2 2 2 61.92 1.03 1.4985 2 -4 1 2 62.44 1.34 1.4874 -4 2 3 2 62.88 9.13 1.4780 4 0 0 2 62.90 3.79 1.4776 -4 -2 1 2 63.08 1.47 1.4739 -4 -2 3 2 63.93 11.36 1.4561 -4 0 4 2 64.62 2.22 1.4423 0 -2 4 2 65.19 2.71 1.4310 1 -5 1 2 65.38 7.95 1.4275 -1 -3 4 2 65.54 3.34 1.4242 0 -4 3 2 65.99 8.10 1.4156 -1 -5 2 2 66.68 7.35 1.4028 -1 5 2 2 66.82 6.50 1.4001 -1 3 4 2 67.10 3.49 1.3949 -4 2 0 2 67.81 3.24 1.3820 -3 -3 4 2 68.01 2.10 1.3784 -3 3 4 2 68.05 5.28 1.3777 3 -1 2 2 68.80 1.17 1.3646 -4 2 4 2 69.73 3.95 1.3485 -3 -1 5 2 70.49 1.81 1.3359 2 -2 3 2 70.78 1.42 1.3312 1 -1 4 2 71.27 2.25 1.3233 2 -4 2 2 72.28 2.84 1.3072 2 2 3 2 72.43 2.82 1.3048 1 -5 2 2 72.81 1.77 1.2990 -2 2 5 2 73.32 3.56 1.2912 -1 -5 3 2 73.72 1.28 1.2852 0 6 0 2 73.84 2.86 1.2833 -4 0 5 2 74.16 5.07 1.2786 2 4 2 2 74.23 4.76 1.2776 -3 5 1 2 74.41 10.15 1.2750 -4 4 2 2 74.78 1.85 1.2695 -1 5 3 2 75.05 1.34 1.2657 1 5 2 2 76.12 7.67 1.2505 -3 -5 2 2 76.18 3.78 1.2497 4 -2 1 2 76.23 3.10 1.2490 -4 -4 2 2 76.34 1.62 1.2474 -3 -5 1 2 76.58 4.72 1.2441 -5 -1 4 2 78.15 3.44 1.2230 -4 -4 1 2 78.59 1.38 1.2172 -4 2 5 2 79.10 3.04 1.2107 -3 5 3 2 79.42 3.85 1.2066 1 -3 4 2 80.30 2.28 1.1956 -1 -3 5 2 81.03 1.52 1.1866 0 4 4 2 81.90 5.10 1.1762 1 3 4 2 82.50 1.40 1.1692 -5 -3 3 2 82.70 1.98 1.1669 3 -1 3 2 82.84 1.62 1.1653 2 6 0 2 83.03 2.39 1.1631 0 2 5 2 83.03 2.78 1.1631 1 -5 3 2 83.19 3.01 1.1613 2 0 4 2 84.99 1.04 1.1412 4 0 2 2 86.34 1.63 1.1268 1 5 3 2 86.78 1.66 1.1222 2 -2 4 2 88.61 1.73 1.1037 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.