Eckermannite Oberti R, Boiocchi M, Hawthorne F C, Ball N A, Harlow G E American Mineralogist 100 (2015) 909-914 Eckermannite revised: The new holotype from the Jade Mine Tract, Myanmar-crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite Note: Sample AMNH H108401 Locality: Jade Mine Tract, Kachin Province, Myanmar _database_code_amcsd 0020422 CELL PARAMETERS: 9.8087 17.8448 5.2905 90.000 103.660 90.000 SPACE GROUP: C2/m X-RAY WAVELENGTH: 1.541838 Cell Volume: 899.826 Density (g/cm3): 3.032 MAX. ABS. INTENSITY / VOLUME**2: 5.623902497 RIR: 0.604 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 9.91 5.52 8.9224 0 2 0 2 10.52 57.84 8.4072 1 1 0 4 17.25 2.22 5.1409 0 0 1 2 18.26 15.30 4.8595 -1 1 1 4 18.62 5.77 4.7656 2 0 0 2 19.90 31.30 4.4612 0 4 0 2 19.93 5.15 4.4544 0 2 1 4 22.07 10.67 4.0283 1 1 1 4 23.10 18.36 3.8499 -1 3 1 4 24.40 2.02 3.6478 -2 2 1 4 26.25 68.06 3.3952 1 3 1 4 26.45 1.76 3.3694 0 4 1 4 27.38 39.11 3.2569 2 4 0 4 28.54 63.18 3.1279 3 1 0 4 29.78 5.06 2.9997 -3 1 1 4 30.14 36.16 2.9655 2 2 1 4 30.67 12.69 2.9146 -1 5 1 4 31.94 20.98 2.8024 3 3 0 4 33.07 25.48 2.7091 -3 3 1 4 33.16 100.00 2.7018 1 5 1 4 34.85 34.15 2.5744 0 6 1 4 34.91 8.31 2.5704 0 0 2 2 35.55 64.62 2.5252 -2 0 2 2 36.48 1.12 2.4627 1 7 0 4 37.70 1.80 2.3861 -2 6 1 4 37.91 6.39 2.3730 3 5 0 4 38.89 28.65 2.3156 -3 5 1 4 39.05 14.56 2.3065 -4 2 1 4 39.60 17.71 2.2758 -1 7 1 4 39.71 1.09 2.2699 3 3 1 4 39.88 19.04 2.2603 -3 1 2 4 41.07 7.35 2.1976 -2 4 2 4 41.62 5.70 2.1700 1 7 1 4 41.81 33.74 2.1607 2 6 1 4 42.48 8.76 2.1279 -3 3 2 4 42.56 1.92 2.1243 -1 5 2 4 43.79 18.68 2.0675 2 0 2 2 44.80 8.78 2.0231 3 5 1 4 45.38 7.81 1.9986 -4 0 2 2 45.63 2.20 1.9883 3 7 0 4 46.31 1.59 1.9606 1 5 2 4 46.47 1.04 1.9542 -3 7 1 4 46.77 2.94 1.9423 4 2 1 4 46.80 3.41 1.9412 1 9 0 4 47.33 3.24 1.9206 -3 5 2 4 48.00 8.81 1.8955 5 1 0 4 48.53 3.32 1.8759 2 4 2 4 48.92 2.87 1.8619 -4 6 1 4 49.38 8.65 1.8456 -1 9 1 4 50.01 3.87 1.8239 -4 4 2 4 50.26 2.30 1.8153 5 3 0 4 51.09 4.53 1.7878 1 9 1 4 51.19 4.66 1.7845 0 10 0 2 52.21 1.04 1.7520 -1 1 3 4 52.85 4.93 1.7322 -5 1 2 4 53.04 1.21 1.7264 1 7 2 4 54.34 6.83 1.6882 -1 3 3 4 54.46 1.54 1.6847 0 8 2 4 54.53 5.36 1.6829 0 2 3 4 54.92 6.14 1.6718 -2 8 2 4 55.30 2.26 1.6612 -3 9 1 4 55.57 27.64 1.6539 4 6 1 4 56.51 7.78 1.6284 4 8 0 4 57.64 9.59 1.5993 1 11 0 4 58.06 3.78 1.5885 6 0 0 2 58.45 21.19 1.5789 -1 5 3 4 58.73 4.43 1.5721 4 0 2 2 59.57 1.88 1.5520 2 10 1 4 60.89 11.00 1.5215 -6 0 2 2 61.20 3.67 1.5144 1 9 2 4 61.49 4.81 1.5080 5 5 1 4 61.49 20.51 1.5079 -2 6 3 4 62.39 2.23 1.4885 -4 8 2 4 62.45 10.40 1.4871 0 12 0 2 62.56 1.66 1.4848 0 6 3 4 62.65 4.23 1.4828 4 4 2 4 62.66 2.20 1.4825 2 2 3 4 63.88 2.70 1.4573 -2 10 2 4 64.30 3.23 1.4487 -1 7 3 4 64.50 4.40 1.4448 3 11 0 4 64.73 4.12 1.4401 -6 4 2 4 65.27 28.33 1.4295 -6 6 1 4 65.28 1.55 1.4294 -4 10 1 4 65.33 1.89 1.4283 4 10 0 4 66.02 1.85 1.4150 -5 3 3 4 68.00 11.98 1.3787 5 1 2 4 69.20 2.35 1.3577 7 1 0 4 69.59 1.42 1.3509 2 10 2 4 69.72 4.73 1.3488 -5 5 3 4 69.83 4.43 1.3469 5 3 2 4 70.14 5.03 1.3418 2 6 3 4 70.58 6.95 1.3344 1 11 2 4 71.02 1.45 1.3273 7 3 0 4 71.35 1.03 1.3218 -2 0 4 2 71.37 2.63 1.3216 -3 11 2 4 71.69 2.15 1.3165 -1 9 3 4 71.98 5.80 1.3119 -1 1 4 4 72.23 1.65 1.3080 -5 9 2 4 72.50 7.82 1.3038 -7 5 1 4 73.14 1.31 1.2940 6 8 0 4 73.59 6.02 1.2872 0 12 2 4 73.69 2.63 1.2856 6 6 1 4 73.72 4.15 1.2852 0 0 4 2 73.77 3.06 1.2845 -1 3 4 4 73.97 14.62 1.2814 -2 12 2 4 75.26 5.13 1.2626 -4 0 4 2 75.34 1.19 1.2616 4 12 0 4 77.79 1.18 1.2278 6 0 2 2 77.81 1.01 1.2276 -7 7 1 4 78.81 1.07 1.2144 -2 14 1 4 80.64 2.26 1.1914 8 0 0 2 81.03 7.65 1.1867 -5 11 2 4 82.16 4.01 1.1732 2 0 4 2 83.45 1.46 1.1583 4 6 3 4 83.50 1.42 1.1578 -6 10 2 4 83.90 1.42 1.1533 -8 4 2 4 86.41 1.11 1.1261 5 3 3 4 86.76 1.90 1.1224 7 9 0 4 88.59 1.45 1.1039 -6 4 4 4 88.77 1.84 1.1021 3 1 4 4 89.32 1.08 1.0967 -7 7 3 4 89.83 1.07 1.0918 5 5 3 4 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.