| Description: OREAS 552 was prepared from a blend of copper-cobalt primary ore materials supplied by Metorex (subsidiary of Jinchuan Group) from the Dilala Est Copper Cobalt Project, located within the Kolwezi Klippe area of Lualaba Province (Democratic Republic of the Congo). Kolwezi is ~320 kilometres northwest from Lubumbashi, the provincial capital of Haut Katanga Province. Copper-cobalt ores within the Kolwezi Klippe area are stratiform, sediment-hosted deposits hosted within Neoproterozoic sedimentary rocks of the Central African Copperbelt. Primary mineralisation typically consists of bornite, chalcopyrite and cobalt sulphides (linnaeite and carrollite) hosted within dolomitic argillite, shales, sandstone and dolomite horizons. Thirty analytical laboratories participated in the program using the following methods: • Lithium borate fusion whole rock analysis package by X-ray fluorescence;
• Thermogravimetry: Loss on Ignition (LOI) at 1000°C;
• C and S by infrared combustion furnace/CS analyser;
• Cu and Co by *5% sulphuric acid leach with ICP or AAS finish;
• Cu and Co by *10% sulphuric acid leach with ICP or AAS finish;
• Sodium peroxide fusion with full suite elemental package by ICP-OES and/or MS finish;
• 4-acid digestion for full suite elemental package by ICP-OES and MS finish;
• Aqua regia digestion for full elemental suite package by ICP-OES and ICP-MS finish. Download Certificate OREAS552 Download DataPack OREAS552 | Analyte | Certified Value | 1SD | 95% CI Low | 95% CI High | Method |
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| Ag, Silver (ppm) | 0.222 | 0.021 | 0.211 | 0.233 | 4-Acid Digestion | | Al, Aluminium (wt.%) | 1.94 | 0.036 | 1.93 | 1.95 | 4-Acid Digestion | | As, Arsenic (ppm) | 5.11 | 0.62 | 4.73 | 5.49 | 4-Acid Digestion | | Ba, Barium (ppm) | 218 | 10 | 214 | 222 | 4-Acid Digestion | | Be, Beryllium (ppm) | 1.04 | 0.067 | 1.01 | 1.06 | 4-Acid Digestion | | Bi, Bismuth (ppm) | 4.91 | 0.305 | 4.77 | 5.05 | 4-Acid Digestion | | Ca, Calcium (wt.%) | 9.46 | 0.32 | 9.33 | 9.59 | 4-Acid Digestion | | Cd, Cadmium (ppm) | 0.11 | 0.009 | 0.11 | 0.11 | 4-Acid Digestion | | Ce, Cerium (ppm) | 35.8 | 5.2 | 33.3 | 38.4 | 4-Acid Digestion | | Co, Cobalt (wt.%) | 0.406 | 0.019 | 0.398 | 0.414 | 4-Acid Digestion | | Cr, Chromium (ppm) | 18.5 | 5.1 | 16.4 | 20.6 | 4-Acid Digestion | | Cs, Caesium (ppm) | 0.49 | 0.039 | 0.47 | 0.51 | 4-Acid Digestion | | Cu, Copper (wt.%) | 3.09 | 0.076 | 3.06 | 3.12 | 4-Acid Digestion | | Dy, Dysprosium (ppm) | 2.01 | 0.103 | 1.93 | 2.09 | 4-Acid Digestion | | Er, Erbium (ppm) | 1.11 | 0.082 | 1.05 | 1.17 | 4-Acid Digestion | | Eu, Europium (ppm) | 0.43 | 0.033 | 0.4 | 0.46 | 4-Acid Digestion | | Fe, Iron (wt.%) | 0.761 | 0.024 | 0.751 | 0.772 | 4-Acid Digestion | | Ga, Gallium (ppm) | 5.08 | 0.53 | 4.83 | 5.32 | 4-Acid Digestion | | Gd, Gadolinium (ppm) | 2.41 | 0.154 | 2.32 | 2.5 | 4-Acid Digestion | | Hf, Hafnium (ppm) | 1.47 | 0.15 | 1.4 | 1.53 | 4-Acid Digestion | | Ho, Holmium (ppm) | 0.38 | 0.038 | 0.34 | 0.41 | 4-Acid Digestion | | In, Indium (ppm) | 0.18 | 0.012 | 0.17 | 0.18 | 4-Acid Digestion | | K, Potassium (wt.%) | 0.583 | 0.027 | 0.571 | 0.595 | 4-Acid Digestion | | La, Lanthanum (ppm) | 19.1 | 2.8 | 17.7 | 20.6 | 4-Acid Digestion | | Li, Lithium (ppm) | 53 | 2.8 | 52 | 54 | 4-Acid Digestion | | Lu, Lutetium (ppm) | 0.15 | 0.011 | 0.14 | 0.16 | 4-Acid Digestion | | Mg, Magnesium (wt.%) | 7.05 | 0.191 | 6.97 | 7.13 | 4-Acid Digestion | | Mn, Manganese (wt.%) | 0.082 | 0.004 | 0.08 | 0.084 | 4-Acid Digestion | | Mo, Molybdenum (ppm) | 3.08 | 0.153 | 3.01 | 3.14 | 4-Acid Digestion | | Na, Sodium (wt.%) | 0.028 | 0.009 | 0.025 | 0.032 | 4-Acid Digestion | | Nb, Niobium (ppm) | 4.28 | 0.93 | 3.86 | 4.71 | 4-Acid Digestion | | Nd, Neodymium (ppm) | 15 | 2.4 | 13.4 | 16.5 | 4-Acid Digestion | | Ni, Nickel (ppm) | 17 | 1.01 | 16.4 | 17.5 | 4-Acid Digestion | | P, Phosphorus (wt.%) | 0.035 | 0.002 | 0.035 | 0.036 | 4-Acid Digestion | | Pb, Lead (ppm) | 8.73 | 0.762 | 8.31 | 9.15 | 4-Acid Digestion | | Pr, Praseodymium (ppm) | 3.85 | 0.75 | 3.34 | 4.36 | 4-Acid Digestion | | Rb, Rubidium (ppm) | 19.8 | 1.01 | 19.4 | 20.3 | 4-Acid Digestion | | Re, Rhenium (ppm) | 0.055 | 0.003 | 0.054 | 0.056 | 4-Acid Digestion | | S, Sulphur (wt.%) | 1.32 | 0.071 | 1.29 | 1.35 | 4-Acid Digestion | | Sb, Antimony (ppm) | 0.25 | 0.03 | 0.24 | 0.27 | 4-Acid Digestion | | Sc, Scandium (ppm) | 4.54 | 0.235 | 4.42 | 4.66 | 4-Acid Digestion | | Se, Selenium (ppm) | 6.71 | 1 | 6.3 | 7.12 | 4-Acid Digestion | | Sm, Samarium (ppm) | 2.75 | 0.252 | 2.59 | 2.91 | 4-Acid Digestion | | Sn, Tin (ppm) | 0.73 | 0.08 | 0.7 | 0.77 | 4-Acid Digestion | | Sr, Strontium (ppm) | 73 | 3.3 | 72 | 75 | 4-Acid Digestion | | Ta, Tantalum (ppm) | 0.27 | 0.1 | 0.22 | 0.33 | 4-Acid Digestion | | Tb, Terbium (ppm) | 0.37 | 0.022 | 0.35 | 0.39 | 4-Acid Digestion | | Th, Thorium (ppm) | 3.47 | 0.314 | 3.34 | 3.61 | 4-Acid Digestion | | Tl, Thallium (ppm) | 0.18 | 0.015 | 0.17 | 0.19 | 4-Acid Digestion | | Tm, Thulium (ppm) | 0.17 | 0.014 | 0.16 | 0.17 | 4-Acid Digestion | | U, Uranium (ppm) | 18.9 | 1.16 | 18.4 | 19.5 | 4-Acid Digestion | | V, Vanadium (ppm) | 56 | 3.7 | 55 | 58 | 4-Acid Digestion | | W, Tungsten (ppm) | 0.45 | 0.09 | 0.41 | 0.49 | 4-Acid Digestion | | Y, Yttrium (ppm) | 10.3 | 0.55 | 10.1 | 10.5 | 4-Acid Digestion | | Yb, Ytterbium (ppm) | 1.01 | 0.067 | 0.97 | 1.05 | 4-Acid Digestion | | Zn, Zinc (ppm) | 27 | 2.48 | 25.9 | 28 | 4-Acid Digestion | | Zr, Zirconium (ppm) | 54 | 3.3 | 52 | 55 | 4-Acid Digestion | | Ag, Silver (ppm) | 0.227 | 0.019 | 0.22 | 0.234 | Aqua Regia Digestion | | Al, Aluminium (wt.%) | 0.784 | 0.069 | 0.753 | 0.815 | Aqua Regia Digestion | | As, Arsenic (ppm) | 3.98 | 0.55 | 3.73 | 4.23 | Aqua Regia Digestion | | B, Boron (ppm) | 9.14 | 1.81 | 8.3 | 9.98 | Aqua Regia Digestion | | Ba, Barium (ppm) | 165 | 22 | 154 | 176 | Aqua Regia Digestion | | Be, Beryllium (ppm) | 0.66 | 0.038 | 0.64 | 0.68 | Aqua Regia Digestion | | Bi, Bismuth (ppm) | 4.91 | 0.271 | 4.79 | 5.03 | Aqua Regia Digestion | | Ca, Calcium (wt.%) | 9.43 | 0.285 | 9.3 | 9.55 | Aqua Regia Digestion | | Cd, Cadmium (ppm) | 0.11 | 0.02 | 0.1 | 0.11 | Aqua Regia Digestion | | Ce, Cerium (ppm) | 6.94 | 0.78 | 6.54 | 7.34 | Aqua Regia Digestion | | Co, Cobalt (wt.%) | 0.339 | 0.054 | 0.315 | 0.363 | Aqua Regia Digestion | | Cr, Chromium (ppm) | 12.6 | 1.3 | 11.9 | 13.2 | Aqua Regia Digestion | | Cs, Caesium (ppm) | 0.094 | 0.022 | 0.081 | 0.108 | Aqua Regia Digestion | | Cu, Copper (wt.%) | 3.08 | 0.09 | 3.04 | 3.12 | Aqua Regia Digestion | | Dy, Dysprosium (ppm) | 1.22 | 0.107 | 1.09 | 1.36 | Aqua Regia Digestion | | Er, Erbium (ppm) | 0.53 | 0.028 | 0.5 | 0.56 | Aqua Regia Digestion | | Fe, Iron (wt.%) | 0.703 | 0.03 | 0.69 | 0.716 | Aqua Regia Digestion | | Ga, Gallium (ppm) | 2.22 | 0.146 | 2.15 | 2.29 | Aqua Regia Digestion | | Gd, Gadolinium (ppm) | 1.7 | 0.145 | 1.51 | 1.89 | Aqua Regia Digestion | | Ge, Germanium (ppm) | 0.1 | IND | IND | IND | Aqua Regia Digestion | | Hf, Hafnium (ppm) | 0.25 | 0.04 | 0.22 | 0.27 | Aqua Regia Digestion | | Hg, Mercury (ppm) | 0.026 | 0.008 | 0.022 | 0.03 | Aqua Regia Digestion | | Ho, Holmium (ppm) | 0.21 | 0.01 | 0.2 | 0.22 | Aqua Regia Digestion | | In, Indium (ppm) | 0.15 | 0.008 | 0.15 | 0.15 | Aqua Regia Digestion | | K, Potassium (wt.%) | 0.122 | 0.015 | 0.115 | 0.129 | Aqua Regia Digestion | | La, Lanthanum (ppm) | 2.98 | 0.44 | 2.78 | 3.19 | Aqua Regia Digestion | | Li, Lithium (ppm) | 40.9 | 3.84 | 38.8 | 42.9 | Aqua Regia Digestion | | Lu, Lutetium (ppm) | 0.061 | 0.006 | 0.054 | 0.069 | Aqua Regia Digestion | | Mg, Magnesium (wt.%) | 6.78 | 0.343 | 6.63 | 6.93 | Aqua Regia Digestion | | Mn, Manganese (wt.%) | 0.081 | 0.006 | 0.078 | 0.084 | Aqua Regia Digestion | | Mo, Molybdenum (ppm) | 2.84 | 0.186 | 2.76 | 2.92 | Aqua Regia Digestion | | Nd, Neodymium (ppm) | 4.31 | 0.392 | 3.89 | 4.74 | Aqua Regia Digestion | | Ni, Nickel (ppm) | 13.6 | 1.9 | 12.5 | 14.6 | Aqua Regia Digestion | | P, Phosphorus (wt.%) | 0.033 | 0.002 | 0.032 | 0.034 | Aqua Regia Digestion | | Pb, Lead (ppm) | 8.24 | 0.582 | 7.95 | 8.53 | Aqua Regia Digestion | | Pr, Praseodymium (ppm) | 0.91 | 0.11 | 0.76 | 1.06 | Aqua Regia Digestion | | Rb, Rubidium (ppm) | 3.63 | 0.46 | 3.39 | 3.86 | Aqua Regia Digestion | | Re, Rhenium (ppm) | 0.055 | 0.003 | 0.054 | 0.055 | Aqua Regia Digestion | | S, Sulphur (wt.%) | 1.22 | 0.155 | 1.14 | 1.29 | Aqua Regia Digestion | | Sb, Antimony (ppm) | 0.14 | 0.03 | 0.13 | 0.16 | Aqua Regia Digestion | | Sc, Scandium (ppm) | 3.58 | 0.41 | 3.37 | 3.8 | Aqua Regia Digestion | | Se, Selenium (ppm) | 6.71 | 0.79 | 6.27 | 7.16 | Aqua Regia Digestion | | Sn, Tin (ppm) | 0.26 | 0.07 | 0.22 | 0.3 | Aqua Regia Digestion | | Sr, Strontium (ppm) | 65 | 4.7 | 63 | 68 | Aqua Regia Digestion | | Ta, Tantalum (ppm) | 0.01 | IND | IND | IND | Aqua Regia Digestion | | Tb, Terbium (ppm) | 0.25 | 0.022 | 0.23 | 0.27 | Aqua Regia Digestion | | Th, Thorium (ppm) | 1.35 | 0.108 | 1.31 | 1.4 | Aqua Regia Digestion | | Ti, Titanium (wt.%) | 0.005 | IND | IND | IND | Aqua Regia Digestion | | Tl, Thallium (ppm) | 0.13 | 0.01 | 0.13 | 0.14 | Aqua Regia Digestion | | U, Uranium (ppm) | 16.4 | 1.06 | 15.9 | 16.8 | Aqua Regia Digestion | | V, Vanadium (ppm) | 26.3 | 2.11 | 25.2 | 27.3 | Aqua Regia Digestion | | W, Tungsten (ppm) | 0.094 | 0.011 | 0.09 | 0.098 | Aqua Regia Digestion | | Y, Yttrium (ppm) | 5.34 | 0.242 | 5.22 | 5.46 | Aqua Regia Digestion | | Yb, Ytterbium (ppm) | 0.42 | 0.018 | 0.4 | 0.43 | Aqua Regia Digestion | | Zn, Zinc (ppm) | 24.4 | 1.91 | 23.5 | 25.2 | Aqua Regia Digestion | | Zr, Zirconium (ppm) | 8.44 | 0.543 | 8.15 | 8.74 | Aqua Regia Digestion | | Al2O3, Aluminium(III) oxide (wt.%) | 3.67 | 0.071 | 3.64 | 3.7 | Borate Fusion XRF | | BaO, Barium oxide (ppm) | 242 | 68 | 199 | 285 | Borate Fusion XRF | | CaO, Calcium oxide (wt.%) | 13.51 | 0.134 | 13.45 | 13.58 | Borate Fusion XRF | | Co, Cobalt (wt.%) | 0.409 | 0.009 | 0.403 | 0.414 | Borate Fusion XRF | | Cu, Copper (wt.%) | 3.07 | 0.037 | 3.06 | 3.09 | Borate Fusion XRF | | Fe2O3, Iron(III) oxide (wt.%) | 1.1 | 0.019 | 1.09 | 1.11 | Borate Fusion XRF | | K2O, Potassium oxide (wt.%) | 0.675 | 0.007 | 0.672 | 0.678 | Borate Fusion XRF | | MgO, Magnesium oxide (wt.%) | 11.65 | 0.198 | 11.55 | 11.76 | Borate Fusion XRF | | MnO, Manganese oxide (wt.%) | 0.112 | 0.006 | 0.109 | 0.114 | Borate Fusion XRF | | P2O5, Phosphorus(V) oxide (wt.%) | 0.083 | 0.007 | 0.079 | 0.087 | Borate Fusion XRF | | SiO2, Silicon dioxide (wt.%) | 41.37 | 0.424 | 41.18 | 41.56 | Borate Fusion XRF | | SO3, Sulphur trioxide (wt.%) | 3.33 | 0.063 | 3.28 | 3.37 | Borate Fusion XRF | | SrO, Strontium oxide (ppm) | 87 | 21 | 75 | 99 | Borate Fusion XRF | | TiO2, Titanium dioxide (wt.%) | 0.239 | 0.008 | 0.235 | 0.243 | Borate Fusion XRF | | C, Carbon (wt.%) | 5.84 | 0.154 | 5.78 | 5.9 | Infrared Combustion | | S, Sulphur (wt.%) | 1.32 | 0.046 | 1.3 | 1.34 | Infrared Combustion | | Ag, Silver (ppm) | 1 | IND | IND | IND | Peroxide Fusion ICP | | Al, Aluminium (wt.%) | 1.98 | 0.051 | 1.95 | 2 | Peroxide Fusion ICP | | As, Arsenic (ppm) | 7.5 | 2.89 | 5.06 | 9.95 | Peroxide Fusion ICP | | B, Boron (ppm) | 222 | 14 | 207 | 236 | Peroxide Fusion ICP | | Ba, Barium (ppm) | 221 | 12 | 216 | 227 | Peroxide Fusion ICP | | Bi, Bismuth (ppm) | 5.34 | 0.61 | 4.84 | 5.83 | Peroxide Fusion ICP | | Ca, Calcium (wt.%) | 9.8 | 0.253 | 9.69 | 9.91 | Peroxide Fusion ICP | | Ce, Cerium (ppm) | 44.9 | 2.31 | 43.2 | 46.5 | Peroxide Fusion ICP | | Co, Cobalt (wt.%) | 0.412 | 0.011 | 0.408 | 0.417 | Peroxide Fusion ICP | | Cs, Caesium (ppm) | 0.54 | 0.06 | 0.5 | 0.57 | Peroxide Fusion ICP | | Cu, Copper (wt.%) | 3.1 | 0.082 | 3.07 | 3.13 | Peroxide Fusion ICP | | Dy, Dysprosium (ppm) | 2.17 | 0.22 | 2.06 | 2.29 | Peroxide Fusion ICP | | Er, Erbium (ppm) | 1.23 | 0.17 | 1.18 | 1.29 | Peroxide Fusion ICP | | Eu, Europium (ppm) | 0.45 | 0.05 | 0.41 | 0.49 | Peroxide Fusion ICP | | Fe, Iron (wt.%) | 0.776 | 0.024 | 0.766 | 0.786 | Peroxide Fusion ICP | | Ga, Gallium (ppm) | 5.58 | 0.81 | 5.04 | 6.11 | Peroxide Fusion ICP | | Gd, Gadolinium (ppm) | 2.81 | 0.29 | 2.61 | 3.01 | Peroxide Fusion ICP | | Ho, Holmium (ppm) | 0.42 | 0.041 | 0.39 | 0.44 | Peroxide Fusion ICP | | K, Potassium (wt.%) | 0.606 | 0.022 | 0.592 | 0.62 | Peroxide Fusion ICP | | La, Lanthanum (ppm) | 26.4 | 1.41 | 25.4 | 27.4 | Peroxide Fusion ICP | | Li, Lithium (ppm) | 55 | 4 | 52 | 58 | Peroxide Fusion ICP | | Lu, Lutetium (ppm) | 0.17 | 0.016 | 0.15 | 0.18 | Peroxide Fusion ICP | | Mg, Magnesium (wt.%) | 7.1 | 0.109 | 7.06 | 7.14 | Peroxide Fusion ICP | | Mn, Manganese (wt.%) | 0.085 | 0.003 | 0.083 | 0.087 | Peroxide Fusion ICP | | Nd, Neodymium (ppm) | 18.9 | 0.7 | 18.5 | 19.2 | Peroxide Fusion ICP | | Ni, Nickel (ppm) | 14.1 | 4.1 | 8.8 | 19.3 | Peroxide Fusion ICP | | P, Phosphorus (wt.%) | 0.038 | 0.006 | 0.032 | 0.045 | Peroxide Fusion ICP | | Pb, Lead (ppm) | 10.7 | 3.6 | 6.8 | 14.5 | Peroxide Fusion ICP | | Pr, Praseodymium (ppm) | 5.37 | 0.287 | 5.18 | 5.56 | Peroxide Fusion ICP | | Rb, Rubidium (ppm) | 20 | 1.04 | 19.5 | 20.5 | Peroxide Fusion ICP | | S, Sulphur (wt.%) | 1.29 | 0.042 | 1.27 | 1.32 | Peroxide Fusion ICP | | Si, Silicon (wt.%) | 19.82 | 0.561 | 19.52 | 20.12 | Peroxide Fusion ICP | | Sm, Samarium (ppm) | 3.15 | 0.33 | 2.99 | 3.31 | Peroxide Fusion ICP | | Sr, Strontium (ppm) | 79 | 4.9 | 76 | 81 | Peroxide Fusion ICP | | Tb, Terbium (ppm) | 0.4 | 0.039 | 0.38 | 0.42 | Peroxide Fusion ICP | | Th, Thorium (ppm) | 3.77 | 0.46 | 3.49 | 4.04 | Peroxide Fusion ICP | | Ti, Titanium (wt.%) | 0.143 | 0.007 | 0.141 | 0.146 | Peroxide Fusion ICP | | Tm, Thulium (ppm) | 0.18 | 0.03 | 0.15 | 0.2 | Peroxide Fusion ICP | | U, Uranium (ppm) | 19 | 1.4 | 18 | 20 | Peroxide Fusion ICP | | V, Vanadium (ppm) | 59 | 4.1 | 56 | 62 | Peroxide Fusion ICP | | Y, Yttrium (ppm) | 11 | 1.01 | 10.4 | 11.7 | Peroxide Fusion ICP | | Yb, Ytterbium (ppm) | 1.12 | 0.17 | 1.02 | 1.22 | Peroxide Fusion ICP | | Zn, Zinc (ppm) | 29.9 | 4.2 | 26.6 | 33.2 | Peroxide Fusion ICP | | Zr, Zirconium (ppm) | 73 | 8 | 62 | 84 | Peroxide Fusion ICP | | Co, Cobalt (wt.%) | 0.086 | 0.014 | 0.076 | 0.095 | Sulphuric Acid 10% Leach | | Co, Cobalt (wt.%) | 0.084 | 0.014 | 0.073 | 0.095 | Sulphuric Acid 5% Leach | | LOI1000, Loss On Ignition @1000°C (wt.%) | 19.85 | 0.11 | 19.81 | 19.9 | Thermogravimetry |
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