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 M6116 _database_code_amcsd 0001325 CELL PARAMETERS: 6.6440 7.7440 6.9100 90.350 117.330 91.010 SPACE GROUP: C-1 X-RAY WAVELENGTH: 1.541838 Cell Volume: 315.753 Density (g/cm3): 3.111 MAX. ABS. INTENSITY / VOLUME**2: 6.189391171 RIR: 0.648 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 14.43 1.18 6.1379 0 0 1 2 18.70 12.45 4.7459 -1 1 0 2 19.09 42.51 4.6499 -1 1 1 2 19.12 36.61 4.6418 1 1 0 2 19.23 62.87 4.6166 -1 -1 1 2 22.98 7.39 3.8709 0 2 0 2 27.04 45.94 3.2980 0 -2 1 2 27.44 41.74 3.2508 0 2 1 2 27.58 30.52 3.2337 1 -1 1 2 28.07 29.76 3.1784 1 1 1 2 28.29 54.52 3.1542 -1 -1 2 2 28.39 87.22 3.1436 -1 1 2 2 29.10 4.87 3.0689 0 0 2 2 30.29 100.00 2.9504 2 0 0 2 30.93 8.62 2.8916 -2 0 2 2 35.31 13.38 2.5420 -2 2 1 2 35.94 24.19 2.4991 -2 -2 1 2 37.09 9.98 2.4238 0 -2 2 2 37.70 6.48 2.3863 0 2 2 2 37.72 31.55 2.3846 -1 3 0 2 37.92 2.90 2.3730 -2 2 0 2 38.08 1.61 2.3632 -1 3 1 2 38.39 5.47 2.3447 1 3 0 2 38.73 2.83 2.3249 -2 2 2 2 38.80 4.63 2.3209 2 2 0 2 39.50 7.19 2.2813 2 0 1 2 40.50 1.61 2.2272 -2 0 3 2 41.09 1.07 2.1969 -1 -1 3 2 41.30 4.15 2.1862 -1 1 3 2 42.97 25.22 2.1047 1 -3 1 2 43.48 5.30 2.0814 -3 -1 2 2 43.92 1.07 2.0613 -1 3 2 2 43.97 9.02 2.0592 1 3 1 2 45.68 2.54 1.9861 2 -2 1 2 46.95 8.15 1.9355 0 4 0 2 47.07 22.30 1.9305 -2 -2 3 2 47.08 9.31 1.9304 -2 2 3 2 47.43 5.85 1.9169 -3 1 0 2 47.98 20.21 1.8960 3 1 0 2 49.61 2.94 1.8375 0 4 1 2 50.81 10.95 1.7970 0 2 3 2 51.93 1.23 1.7609 2 0 2 2 52.46 1.57 1.7442 1 -3 2 2 53.14 21.70 1.7234 -2 0 4 2 53.82 1.07 1.7032 -1 3 3 2 54.91 1.67 1.6722 -3 3 2 2 55.33 2.35 1.6603 -4 0 2 2 55.61 1.91 1.6526 -3 -3 1 2 55.68 4.92 1.6508 -1 -1 4 2 55.74 1.26 1.6492 -3 -3 2 2 55.74 10.07 1.6490 0 -4 2 2 55.96 2.03 1.6432 -1 1 4 2 56.27 4.53 1.6350 3 -1 1 2 56.63 5.45 1.6254 0 4 2 2 56.87 2.08 1.6191 3 1 1 2 56.95 4.70 1.6169 2 -2 2 2 57.06 12.42 1.6140 -2 4 2 2 57.50 6.42 1.6029 -2 -4 2 2 58.04 13.73 1.5892 2 2 2 2 58.33 14.37 1.5820 -3 3 0 2 58.74 7.22 1.5718 -2 2 4 2 59.77 9.74 1.5473 3 3 0 2 60.32 2.31 1.5345 0 0 4 2 61.11 7.42 1.5164 -4 -2 2 2 62.16 1.15 1.4934 2 -4 1 2 62.80 1.44 1.4796 -4 2 3 2 62.90 3.85 1.4776 -4 -2 1 2 63.01 9.60 1.4752 4 0 0 2 63.42 1.58 1.4668 -4 -2 3 2 64.45 12.07 1.4458 -4 0 4 2 65.02 1.62 1.4344 0 -2 4 2 65.27 2.28 1.4295 1 -5 1 2 65.85 7.62 1.4184 -1 -3 4 2 65.90 3.03 1.4174 0 -4 3 2 66.04 9.24 1.4148 -1 -5 2 2 66.08 1.58 1.4139 3 -3 1 2 66.29 9.05 1.4100 -1 5 2 2 66.60 7.79 1.4042 -1 3 4 2 67.10 1.31 1.3949 0 4 3 2 67.41 2.81 1.3892 -4 2 0 2 67.72 1.41 1.3836 3 3 1 2 68.14 2.43 1.3762 -3 3 4 2 68.22 4.88 1.3747 3 -1 2 2 68.28 2.71 1.3736 -3 -3 4 2 70.32 3.61 1.3387 -3 -1 5 2 70.80 1.92 1.3308 2 -2 3 2 71.03 1.48 1.3270 1 -1 4 2 71.62 1.91 1.3176 2 -4 2 2 71.96 2.52 1.3122 2 2 3 2 72.69 3.59 1.3008 1 -5 2 2 72.93 1.54 1.2972 -2 2 5 2 73.38 1.22 1.2903 0 6 0 2 73.54 3.85 1.2879 2 4 2 2 73.59 3.23 1.2872 -1 -5 3 2 74.30 1.44 1.2765 -1 5 3 2 74.35 4.55 1.2759 -3 5 1 2 74.36 2.17 1.2757 1 5 2 2 74.46 1.58 1.2743 -4 0 5 2 74.68 8.99 1.2710 -4 4 2 2 74.83 1.71 1.2688 -3 5 2 2 76.00 1.63 1.2522 -3 -5 1 2 76.01 8.24 1.2520 -3 -5 2 2 76.19 2.56 1.2495 -4 -4 2 2 76.50 3.82 1.2453 4 -2 1 2 77.17 4.68 1.2361 -5 -1 4 2 77.90 3.07 1.2263 -4 -4 1 2 79.03 2.84 1.2116 -3 5 3 2 79.03 1.44 1.2116 -4 2 5 2 79.91 3.28 1.2004 1 -3 4 2 80.92 2.26 1.1880 -1 -3 5 2 81.44 5.72 1.1817 1 3 4 2 82.23 1.42 1.1723 2 6 0 2 82.79 1.56 1.1659 -5 -3 3 2 82.88 1.89 1.1648 0 2 5 2 82.90 1.48 1.1646 3 -1 3 2 83.25 3.65 1.1605 2 0 4 2 83.47 2.40 1.1580 1 -5 3 2 85.04 1.31 1.1407 4 0 2 2 85.54 1.69 1.1352 1 5 3 2 87.17 1.64 1.1182 2 -2 4 2 87.79 1.02 1.1119 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.