Ferri-obertiite Hawthorne F C, Cooper M A, Grice J D, Ottolini L American Mineralogist 85 (2000) 236-241 A new anhydrous amphibole from the Eifel region, Germany: Description and crystal structure of obertiite, NaNa2(Mg3FeTi)Si8O22O2 Note: M1A and M1 are interchanged in the bond length table Locality: Eifel region, Germany _database_code_amcsd 0002347 CELL PARAMETERS: 9.7760 17.9190 5.2920 90.000 104.050 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 899.299 Density (g/cm3): 3.363 MAX. ABS. INTENSITY / VOLUME**2: 7.577566337 RIR: 0.734 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.87 82.80 8.9595 0 2 0 2 10.55 22.14 8.3820 1 1 0 4 17.27 21.69 5.1337 0 0 1 2 18.23 2.10 4.8677 -1 1 1 4 18.71 3.27 4.7418 2 0 0 2 19.82 13.58 4.4798 0 4 0 2 21.20 17.63 4.1910 2 2 0 4 22.16 19.57 4.0112 1 1 1 4 22.22 11.31 4.0009 -2 0 1 2 26.30 100.00 3.3891 1 3 1 4 26.41 3.73 3.3753 0 4 1 4 26.59 5.97 3.3524 1 5 0 4 27.39 45.95 3.2564 2 4 0 4 28.56 8.31 3.1255 2 0 1 2 28.68 48.41 3.1131 3 1 0 4 29.79 9.72 2.9987 -3 1 1 4 29.92 2.76 2.9865 0 6 0 2 29.94 2.83 2.9840 -2 4 1 4 30.29 33.79 2.9511 2 2 1 4 30.57 1.92 2.9242 -1 5 1 4 32.03 13.45 2.7940 3 3 0 4 33.05 40.98 2.7104 -3 3 1 4 33.15 94.11 2.7027 1 5 1 4 34.75 40.02 2.5815 0 6 1 4 35.01 3.35 2.5633 2 4 1 4 35.50 74.27 2.5289 -2 0 2 2 35.52 1.96 2.5270 2 6 0 4 36.41 5.71 2.4676 0 2 2 4 36.93 7.41 2.4338 -2 2 2 4 37.73 4.76 2.3840 -4 0 1 2 37.95 2.36 2.3709 4 0 0 2 37.95 15.10 2.3707 3 5 0 4 38.83 29.83 2.3190 -3 5 1 4 39.10 15.21 2.3038 -4 2 1 4 39.31 4.13 2.2920 4 2 0 4 39.45 29.59 2.2840 -1 7 1 4 39.82 12.73 2.2638 -3 1 2 4 39.91 5.49 2.2590 3 3 1 4 40.50 1.13 2.2271 0 4 2 4 40.98 9.13 2.2023 -2 4 2 4 41.54 1.84 2.1737 1 7 1 4 41.84 34.99 2.1593 2 6 1 4 42.40 6.78 2.1318 -3 3 2 4 42.48 5.82 2.1281 -1 5 2 4 42.98 1.78 2.1045 -4 4 1 4 43.17 1.13 2.0955 4 4 0 4 44.00 19.02 2.0578 2 0 2 2 44.94 11.28 2.0170 3 5 1 4 45.21 3.99 2.0056 2 2 2 4 45.33 10.73 2.0004 -4 0 2 2 45.60 1.75 1.9894 3 7 0 4 45.89 1.50 1.9774 4 0 1 2 46.52 1.78 1.9524 -4 2 2 4 46.61 15.11 1.9485 1 9 0 4 46.66 1.54 1.9466 0 6 2 4 47.06 1.91 1.9310 4 2 1 4 47.09 1.47 1.9300 -2 6 2 4 47.22 9.04 1.9250 -3 5 2 4 48.25 6.87 1.8862 5 1 0 4 48.69 1.74 1.8700 2 4 2 4 48.88 4.67 1.8632 -4 6 1 4 49.06 1.24 1.8569 4 6 0 4 49.18 11.52 1.8526 -1 9 1 4 49.42 3.05 1.8440 -5 3 1 4 49.93 5.27 1.8266 -4 4 2 4 50.49 2.16 1.8078 5 3 0 4 50.95 1.05 1.7923 1 9 1 4 50.96 1.41 1.7919 0 10 0 2 52.21 1.26 1.7519 -1 1 3 4 52.84 4.13 1.7326 -5 1 2 4 53.04 1.01 1.7266 1 7 2 4 53.55 1.36 1.7112 0 0 3 2 53.76 1.37 1.7052 -5 5 1 4 54.12 1.38 1.6945 2 6 2 4 54.33 10.45 1.6886 -1 3 3 4 54.46 2.34 1.6847 3 9 0 4 54.60 4.61 1.6808 0 2 3 4 54.74 6.71 1.6768 -2 8 2 4 55.75 28.16 1.6488 4 6 1 4 56.52 8.79 1.6282 4 8 0 4 57.39 9.84 1.6055 1 11 0 4 57.52 1.22 1.6022 3 5 2 4 57.98 1.18 1.5907 -1 9 2 4 58.38 5.59 1.5806 6 0 0 2 58.41 19.59 1.5800 -1 5 3 4 59.12 5.68 1.5628 4 0 2 2 59.38 2.30 1.5566 6 2 0 4 59.46 1.61 1.5545 2 10 1 4 59.84 1.47 1.5455 -5 7 1 4 60.10 2.14 1.5395 4 2 2 4 60.92 11.27 1.5208 -6 0 2 2 61.13 8.06 1.5160 1 9 2 4 61.19 1.76 1.5147 1 11 1 4 61.37 19.30 1.5106 -2 6 3 4 61.79 5.48 1.5014 5 5 1 4 61.84 2.12 1.5003 -3 9 2 4 62.16 8.63 1.4933 0 12 0 2 62.56 2.65 1.4848 0 6 3 4 62.92 1.59 1.4772 2 2 3 4 62.99 3.36 1.4756 4 4 2 4 64.21 1.76 1.4505 -1 7 3 4 64.33 5.66 1.4480 3 11 0 4 64.73 2.37 1.4401 -6 4 2 4 64.94 2.13 1.4360 -3 11 1 4 65.12 1.68 1.4324 -4 10 1 4 65.36 27.19 1.4278 -6 6 1 4 65.91 3.34 1.4172 -5 3 3 4 66.39 1.15 1.4080 -3 7 3 4 66.95 1.16 1.3978 -4 6 3 4 68.47 9.62 1.3703 5 1 2 4 69.09 1.17 1.3596 -7 3 1 4 69.58 4.66 1.3512 -5 5 3 4 69.59 1.82 1.3509 7 1 0 4 70.29 3.14 1.3393 5 3 2 4 70.32 5.16 1.3388 2 6 3 4 70.44 8.17 1.3367 1 11 2 4 71.10 2.45 1.3259 -3 11 2 4 72.01 4.82 1.3114 -1 1 4 4 72.07 4.66 1.3105 -5 9 2 4 72.68 6.31 1.3010 -7 5 1 4 73.35 5.64 1.2907 0 12 2 4 73.62 1.60 1.2866 -3 9 3 4 73.68 12.89 1.2858 -2 12 2 4 73.78 1.80 1.2842 -1 3 4 4 73.84 4.36 1.2834 0 0 4 2 73.85 1.53 1.2832 5 5 2 4 73.98 1.01 1.2812 3 5 3 4 74.05 1.74 1.2802 6 6 1 4 75.13 5.82 1.2645 -4 0 4 2 75.79 1.04 1.2551 1 9 3 4 76.74 1.48 1.2419 0 14 1 4 77.29 1.04 1.2345 -1 5 4 4 78.20 1.63 1.2224 -1 13 2 4 78.37 1.18 1.2201 6 0 2 2 78.45 2.39 1.2191 -2 14 1 4 80.80 7.65 1.1894 -5 11 2 4 81.13 2.14 1.1854 8 0 0 2 82.49 4.47 1.1693 2 0 4 2 84.02 1.35 1.1519 -8 4 2 4 84.44 1.86 1.1473 1 15 1 4 85.94 1.53 1.1310 5 9 2 4 86.99 3.88 1.1201 7 9 0 4 86.99 1.37 1.1201 5 3 3 4 87.48 2.11 1.1150 5 13 0 4 88.40 1.25 1.1058 -6 4 4 4 89.20 1.63 1.0980 -7 7 3 4 89.23 1.54 1.0977 3 1 4 4 89.78 1.20 1.0924 3 13 2 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.