Tyrrellite Yang H, Hubler D K, Lavina B, Downs R T, Costin G Acta Crystallographica C63 (2007) i73-i74 Tyrrellite, Cu(Co0.68Ni0.32)2Se4, isostructural with spinel Locality: Eagle Claims, Beaverlodge Lake area, Saskatchewan, Canada _database_code_amcsd 0010334 CELL PARAMETERS: 9.9885 9.9885 9.9885 90.000 90.000 90.000 SPACE GROUP: Fd3m X-RAY WAVELENGTH: 1.541838 Cell Volume: 996.554 Density (g/cm3): 6.626 MAX. ABS. INTENSITY / VOLUME**2: 119.1450284 RIR: 5.855 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 15.36 19.61 5.7669 1 1 1 8 25.22 19.69 3.5315 2 2 0 12 29.66 44.42 3.0116 3 1 1 24 31.01 42.95 2.8834 2 2 2 8 35.96 85.20 2.4971 4 0 0 6 39.32 3.57 2.2915 3 3 1 24 44.43 5.21 2.0389 4 2 2 24 47.29 41.73 1.9223 5 1 1 24 51.77 100.00 1.7657 4 4 0 12 54.34 3.47 1.6884 5 3 1 48 58.44 1.19 1.5793 6 2 0 24 60.81 5.25 1.5232 5 3 3 24 61.59 12.27 1.5058 6 2 2 24 64.65 15.65 1.4417 4 4 4 8 66.90 6.85 1.3987 5 5 1 24 70.56 4.36 1.3348 6 4 2 48 72.72 8.75 1.3004 5 5 3 24 76.26 12.25 1.2486 8 0 0 6 78.36 3.55 1.2203 7 3 3 24 81.82 1.49 1.1772 6 6 0 12 83.89 4.30 1.1534 5 5 5 8 83.89 2.75 1.1534 7 5 1 48 84.57 3.60 1.1458 6 6 2 24 87.31 16.28 1.1167 8 4 0 24 89.36 2.92 1.0964 9 1 1 24 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.