Umangite Heyding R D, Murray R M Canadian Journal of Chemistry 54 (1976) 841-848 Crystal structures of Cu1.8Se, Cu3Se2, alpha- and gamma=CuSe, CuSe2, and CuSe2II Locality: Beaverlodge Region, Saskatchewan, Canada _database_code_amcsd 0012164 CELL PARAMETERS: 6.4024 6.4024 4.2786 90.000 90.000 90.000 SPACE GROUP: P-42_1m X-RAY WAVELENGTH: 1.541838 Cell Volume: 175.383 Density (g/cm3): 6.599 MAX. ABS. INTENSITY / VOLUME**2: 56.20815919 RIR: 2.773 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 19.61 2.16 4.5272 1 1 0 4 20.76 25.11 4.2786 0 0 1 2 25.03 100.00 3.5574 1 0 1 8 27.87 52.34 3.2012 2 0 0 4 28.71 54.29 3.1096 1 1 1 4 31.24 19.65 2.8632 2 1 0 8 35.01 20.13 2.5632 2 0 1 8 37.81 13.84 2.3796 2 1 1 8 39.82 61.31 2.2636 2 2 0 4 42.24 22.85 2.1393 0 0 2 2 44.66 1.21 2.0290 1 0 2 8 44.76 37.93 2.0246 3 1 0 8 45.32 24.19 2.0008 2 2 1 4 46.98 23.42 1.9342 1 1 2 4 47.62 46.11 1.9097 3 0 1 8 49.83 89.21 1.8301 3 1 1 8 51.37 63.79 1.7787 2 0 2 8 51.46 7.46 1.7757 3 2 0 8 53.47 4.64 1.7138 2 1 2 8 56.08 13.12 1.6401 3 2 1 8 57.59 2.70 1.6006 4 0 0 4 59.45 6.09 1.5548 2 2 2 4 61.44 1.40 1.5091 3 3 0 4 63.76 2.16 1.4597 4 1 1 8 65.60 6.36 1.4231 3 3 1 4 67.25 2.64 1.3921 1 0 3 8 68.70 4.32 1.3663 3 2 2 8 69.04 4.92 1.3603 1 1 3 4 69.20 5.21 1.3576 4 2 1 8 74.03 2.57 1.2805 4 3 0 8 74.30 2.72 1.2766 2 1 3 8 77.39 7.49 1.2331 3 3 2 4 77.87 1.73 1.2267 5 0 1 8 79.42 3.04 1.2067 2 2 3 4 79.56 19.69 1.2048 5 1 1 8 80.77 10.13 1.1898 4 2 2 8 80.85 4.07 1.1889 5 2 0 8 81.10 4.40 1.1858 3 0 3 8 82.78 9.88 1.1660 3 1 3 8 84.60 2.95 1.1455 5 2 1 8 85.87 5.07 1.1318 4 4 0 4 87.78 2.04 1.1120 3 2 3 8 89.12 3.00 1.0987 4 3 2 8 89.19 1.05 1.0980 5 3 0 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.