OREAS 553b

OREAS 553b was prepared from copper-cobalt sulphide ore samples sourced from MMG’s Kinsevere Mine blended with barren black slate and a minor addition of cobalt concentrate. The Kinsevere Mine is located in the Haut-Katanga province about 30 km from Lubumbashi in the south-east of the Democratic Republic of the Congo (DRC). The hypogene mineralisation at Kinsevere occurs as stratabound, veins and breccias consisting of mainly chalcopyrite, carrolite, bornite and occasionally pyrite and chalcocite, hosted within the Mine series carbonaceous shales, siltstones, and dolomites of the Roan Group belonging to the Katangan Supergroup stratigraphy. Twenty-six analytical laboratories participated in the program using the following methods:

  • Lithium borate fusion whole rock analysis package by X-ray fluorescence
  • Loss on Ignition (LOI) at 1000° C
  • Infrared combustion furnace/CS analyser to determine C and S
  • Co and Cu by 5% sulphuric acid leach with ICP-OES or AAS finish
  • Full ICP-OES and ICP-MS elemental suites by sodium peroxide fusion
  • Full ICP-OES and ICP-MS elemental suites by 4-acid (HCl-HNO3-HF-HClO4) digestion
  • Full ICP-OES and ICP-MS elemental suites by aqua regia digestion
Analyte Certified Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Cu, Copper (wt.%) 3.61 0.110 3.50 3.71 Peroxide Fusion ICP
Co, Cobalt (wt.%) 0.581 0.023 0.565 0.597 Peroxide Fusion ICP
S, Sulphur (wt.%) 3.40 0.085 3.35 3.45 Infrared Combustion
Ag, Silver (ppm) 0.103 0.012 0.085 0.121 4-Acid Digestion
Al, Aluminium (wt.%) 6.41 0.205 6.25 6.56 4-Acid Digestion
As, Arsenic (ppm) 54 2.9 51 57 4-Acid Digestion
Ba, Barium (ppm) 262 14 251 273 4-Acid Digestion
Be, Beryllium (ppm) 4.71 0.187 4.56 4.86 4-Acid Digestion
Bi, Bismuth (ppm) 1.70 0.081 1.62 1.78 4-Acid Digestion
Ca, Calcium (wt.%) 0.313 0.011 0.304 0.322 4-Acid Digestion
Cd, Cadmium (ppm) 0.30 0.016 0.27 0.32 4-Acid Digestion
Ce, Cerium (ppm) 144 15 135 154 4-Acid Digestion
Co, Cobalt (wt.%) 0.587 0.012 0.577 0.597 4-Acid Digestion
Cr, Chromium (ppm) 91 10 85 96 4-Acid Digestion
Cs, Caesium (ppm) 2.08 0.106 1.98 2.18 4-Acid Digestion
Cu, Copper (wt.%) 3.60 0.062 3.54 3.66 4-Acid Digestion
Dy, Dysprosium (ppm) 4.44 0.318 3.98 4.91 4-Acid Digestion
Er, Erbium (ppm) 2.85 0.281 2.54 3.16 4-Acid Digestion
Eu, Europium (ppm) 0.81 0.11 0.68 0.94 4-Acid Digestion
Fe, Iron (wt.%) 3.18 0.078 3.12 3.25 4-Acid Digestion
Ga, Gallium (ppm) 27.9 1.24 26.7 29.1 4-Acid Digestion
Gd, Gadolinium (ppm) 5.01 0.63 4.31 5.70 4-Acid Digestion
Hf, Hafnium (ppm) 5.46 0.210 5.19 5.73 4-Acid Digestion
Ho, Holmium (ppm) 0.96 0.10 0.82 1.11 4-Acid Digestion
In, Indium (ppm) 2.14 0.089 2.06 2.21 4-Acid Digestion
K, Potassium (wt.%) 2.55 0.086 2.49 2.61 4-Acid Digestion
La, Lanthanum (ppm) 68 10 63 74 4-Acid Digestion
Li, Lithium (ppm) 63 2.3 61 64 4-Acid Digestion
Lu, Lutetium (ppm) 0.42 0.05 0.36 0.48 4-Acid Digestion
Mg, Magnesium (wt.%) 3.58 0.131 3.49 3.67 4-Acid Digestion
Mn, Manganese (wt.%) 0.013 0.000 0.013 0.014 4-Acid Digestion
Mo, Molybdenum (ppm) 15.1 0.67 14.5 15.7 4-Acid Digestion
Na, Sodium (wt.%) 0.045 0.006 0.042 0.048 4-Acid Digestion
Nb, Niobium (ppm) 17.4 3.0 15.4 19.4 4-Acid Digestion
Nd, Neodymium (ppm) 63 7 56 70 4-Acid Digestion
Ni, Nickel (ppm) 124 3 122 127 4-Acid Digestion
P, Phosphorus (wt.%) 0.035 0.002 0.034 0.036 4-Acid Digestion
Pb, Lead (ppm) 11.2 1.06 10.5 12.0 4-Acid Digestion
Pr, Praseodymium (ppm) 16.9 1.20 15.2 18.5 4-Acid Digestion
Rb, Rubidium (ppm) 96 5.0 90 101 4-Acid Digestion
Re, Rhenium (ppm) 0.027 0.002 0.024 0.031 4-Acid Digestion
S, Sulphur (wt.%) 3.34 0.075 3.27 3.40 4-Acid Digestion
Sb, Antimony (ppm) 3.01 0.34 2.79 3.24 4-Acid Digestion
Sc, Scandium (ppm) 12.5 0.75 11.9 13.2 4-Acid Digestion
Se, Selenium (ppm) 5.73 0.528 4.96 6.50 4-Acid Digestion
Sm, Samarium (ppm) 8.69 0.89 7.77 9.61 4-Acid Digestion
Sn, Tin (ppm) 2.81 0.159 2.66 2.96 4-Acid Digestion
Sr, Strontium (ppm) 70 2.8 67 73 4-Acid Digestion
Ta, Tantalum (ppm) 1.26 0.20 1.09 1.43 4-Acid Digestion
Tb, Terbium (ppm) 0.74 0.09 0.66 0.83 4-Acid Digestion
Te, Tellurium (ppm) 0.063 0.011 0.049 0.078 4-Acid Digestion
Th, Thorium (ppm) 15.5 0.62 14.8 16.1 4-Acid Digestion
Ti, Titanium (wt.%) 0.258 0.071 0.223 0.293 4-Acid Digestion
Tl, Thallium (ppm) 0.67 0.048 0.63 0.70 4-Acid Digestion
Tm, Thulium (ppm) 0.42 0.08 0.33 0.51 4-Acid Digestion
U, Uranium (ppm) 8.60 0.421 8.26 8.95 4-Acid Digestion
V, Vanadium (ppm) 348 14 339 358 4-Acid Digestion
W, Tungsten (ppm) 2.52 0.215 2.32 2.72 4-Acid Digestion
Y, Yttrium (ppm) 23.8 0.97 22.5 25.0 4-Acid Digestion
Yb, Ytterbium (ppm) 2.84 0.41 2.53 3.15 4-Acid Digestion
Zn, Zinc (ppm) 16.1 1.21 15.1 17.2 4-Acid Digestion
Zr, Zirconium (ppm) 188 10 181 195 4-Acid Digestion
Co, Cobalt (wt.%) 0.127 0.008 0.119 0.135 Sulphuric Acid 5% Leach
Cu, Copper (wt.%) 1.07 0.079 1.02 1.11 Sulphuric Acid 5% Leach
C, Carbon (wt.%) 4.51 0.138 4.43 4.59 Infrared Combustion
Al2O3, Aluminium(III) oxide (wt.%) 12.51 0.197 12.32 12.69 Borate Fusion XRF
BaO, Barium oxide (ppm) 303 45 241 365 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 0.435 0.015 0.423 0.447 Borate Fusion XRF
Co, Cobalt (wt.%) 0.587 0.017 0.572 0.601 Borate Fusion XRF
Cu, Copper (wt.%) 3.62 0.069 3.56 3.69 Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 4.60 0.074 4.53 4.67 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 3.04 0.091 2.99 3.10 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 5.94 0.127 5.84 6.04 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.017 0.004 0.014 0.019 Borate Fusion XRF
Ni, Nickel (ppm) 125 21 87 164 Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.083 0.007 0.074 0.092 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 53.72 0.586 53.17 54.28 Borate Fusion XRF
SO3, Sulphur trioxide (wt.%) 8.59 0.215 8.37 8.82 Borate Fusion XRF
SrO, Strontium oxide (ppm) 96 21 75 116 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.791 0.015 0.775 0.808 Borate Fusion XRF
V2O5, Vanadium(V) oxide (ppm) 614 77 528 700 Borate Fusion XRF
Zr, Zirconium (ppm) 240 48 187 294 Borate Fusion XRF
LOI1000, Loss On Ignition @1000 °C (wt.%) 12.72 0.344 12.53 12.92 Thermogravimetry
Al, Aluminium (wt.%) 6.47 0.156 6.31 6.63 Peroxide Fusion ICP
As, Arsenic (ppm) 53 6 47 59 Peroxide Fusion ICP
B, Boron (ppm) 217 15 196 238 Peroxide Fusion ICP
Ba, Barium (ppm) 264 10 254 274 Peroxide Fusion ICP
Be, Beryllium (ppm) 5.42 0.70 4.62 6.22 Peroxide Fusion ICP
Bi, Bismuth (ppm) 1.77 0.114 1.60 1.94 Peroxide Fusion ICP
Ca, Calcium (wt.%) 0.307 0.037 0.280 0.334 Peroxide Fusion ICP
Ce, Cerium (ppm) 152 5 144 159 Peroxide Fusion ICP
Cr, Chromium (ppm) 110 16 97 124 Peroxide Fusion ICP
Cs, Caesium (ppm) 2.13 0.141 2.01 2.25 Peroxide Fusion ICP
Dy, Dysprosium (ppm) 7.03 0.304 6.61 7.45 Peroxide Fusion ICP
Er, Erbium (ppm) 3.73 0.329 3.39 4.08 Peroxide Fusion ICP
Eu, Europium (ppm) 0.91 0.09 0.82 1.00 Peroxide Fusion ICP
Fe, Iron (wt.%) 3.17 0.092 3.08 3.25 Peroxide Fusion ICP
Ga, Gallium (ppm) 27.7 1.09 26.3 29.0 Peroxide Fusion ICP
Gd, Gadolinium (ppm) 6.87 0.419 6.45 7.29 Peroxide Fusion ICP
Ge, Germanium (ppm) 2.24 0.67 1.35 3.12 Peroxide Fusion ICP
Ho, Holmium (ppm) 1.35 0.107 1.21 1.49 Peroxide Fusion ICP
In, Indium (ppm) 2.22 0.166 2.03 2.40 Peroxide Fusion ICP
K, Potassium (wt.%) 2.58 0.094 2.51 2.65 Peroxide Fusion ICP
La, Lanthanum (ppm) 77 4.1 73 81 Peroxide Fusion ICP
Li, Lithium (ppm) 65 4.6 60 69 Peroxide Fusion ICP
Lu, Lutetium (ppm) 0.56 0.050 0.47 0.65 Peroxide Fusion ICP
Mg, Magnesium (wt.%) 3.57 0.087 3.48 3.65 Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.014 0.002 0.013 0.015 Peroxide Fusion ICP
Mo, Molybdenum (ppm) 16.0 1.47 14.5 17.4 Peroxide Fusion ICP
Nb, Niobium (ppm) 25.6 1.58 23.8 27.3 Peroxide Fusion ICP
Nd, Neodymium (ppm) 65 2.1 62 67 Peroxide Fusion ICP
Ni, Nickel (ppm) 126 11 116 136 Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.037 0.008 0.027 0.048 Peroxide Fusion ICP
Pb, Lead (ppm) 32.8 19.5 21.9 43.8 Peroxide Fusion ICP
Pr, Praseodymium (ppm) 18.1 0.51 17.3 19.0 Peroxide Fusion ICP
Rb, Rubidium (ppm) 96 4.1 93 100 Peroxide Fusion ICP
Re, Rhenium (ppm) < 0.10 IND IND IND Peroxide Fusion ICP
S, Sulphur (wt.%) 3.29 0.188 3.18 3.41 Peroxide Fusion ICP
Sb, Antimony (ppm) 3.35 0.274 2.93 3.77 Peroxide Fusion ICP
Sc, Scandium (ppm) 12.2 0.99 11.2 13.3 Peroxide Fusion ICP
Si, Silicon (wt.%) 25.17 0.789 24.57 25.78 Peroxide Fusion ICP
Sm, Samarium (ppm) 8.90 0.663 8.21 9.59 Peroxide Fusion ICP
Sr, Strontium (ppm) 70 3.6 66 74 Peroxide Fusion ICP
Ta, Tantalum (ppm) 2.01 0.30 1.66 2.36 Peroxide Fusion ICP
Tb, Terbium (ppm) 1.18 0.068 1.10 1.27 Peroxide Fusion ICP
Th, Thorium (ppm) 16.0 0.39 15.3 16.6 Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.461 0.017 0.447 0.475 Peroxide Fusion ICP
Tl, Thallium (ppm) 0.73 0.065 0.61 0.84 Peroxide Fusion ICP
Tm, Thulium (ppm) 0.57 0.052 0.51 0.63 Peroxide Fusion ICP
U, Uranium (ppm) 8.70 0.411 8.28 9.12 Peroxide Fusion ICP
V, Vanadium (ppm) 365 16 352 378 Peroxide Fusion ICP
W, Tungsten (ppm) 3.18 0.49 2.50 3.86 Peroxide Fusion ICP
Y, Yttrium (ppm) 35.6 1.89 34.1 37.1 Peroxide Fusion ICP
Yb, Ytterbium (ppm) 3.63 0.348 3.26 4.00 Peroxide Fusion ICP
Ag, Silver (ppm) 0.077 0.008 0.064 0.089 Aqua Regia Digestion
Al, Aluminium (wt.%) 0.940 0.135 0.869 1.010 Aqua Regia Digestion
As, Arsenic (ppm) 51 2.5 49 53 Aqua Regia Digestion
Au, Gold (ppm) < 0.020 IND IND IND Aqua Regia Digestion
B, Boron (ppm) < 10.0 IND IND IND Aqua Regia Digestion
Ba, Barium (ppm) 49.9 6.1 46.5 53.3 Aqua Regia Digestion
Be, Beryllium (ppm) 2.16 0.189 2.01 2.30 Aqua Regia Digestion
Bi, Bismuth (ppm) 1.58 0.111 1.51 1.65 Aqua Regia Digestion
Ca, Calcium (wt.%) 0.300 0.013 0.289 0.311 Aqua Regia Digestion
Cd, Cadmium (ppm) 0.30 0.023 0.27 0.32 Aqua Regia Digestion
Ce, Cerium (ppm) 42.9 6.2 39.4 46.3 Aqua Regia Digestion
Co, Cobalt (wt.%) 0.548 0.053 0.521 0.574 Aqua Regia Digestion
Cr, Chromium (ppm) 33.9 3.31 32.1 35.8 Aqua Regia Digestion
Cs, Caesium (ppm) 0.29 0.08 0.25 0.34 Aqua Regia Digestion
Cu, Copper (wt.%) 3.60 0.077 3.56 3.65 Aqua Regia Digestion
Dy, Dysprosium (ppm) 0.80 0.08 0.68 0.92 Aqua Regia Digestion
Er, Erbium (ppm) 0.36 0.030 0.33 0.40 Aqua Regia Digestion
Eu, Europium (ppm) 0.31 0.04 0.27 0.36 Aqua Regia Digestion
Fe, Iron (wt.%) 2.97 0.111 2.89 3.05 Aqua Regia Digestion
Ga, Gallium (ppm) 7.67 1.29 7.01 8.34 Aqua Regia Digestion
Gd, Gadolinium (ppm) 1.74 0.23 1.48 1.99 Aqua Regia Digestion
Hf, Hafnium (ppm) 0.30 0.024 0.28 0.32 Aqua Regia Digestion
Hg, Mercury (ppm) 0.050 0.012 0.037 0.064 Aqua Regia Digestion
Ho, Holmium (ppm) 0.14 0.03 0.12 0.16 Aqua Regia Digestion
In, Indium (ppm) 1.54 0.108 1.46 1.63 Aqua Regia Digestion
K, Potassium (wt.%) 0.190 0.017 0.180 0.200 Aqua Regia Digestion
La, Lanthanum (ppm) 19.0 2.4 17.5 20.4 Aqua Regia Digestion
Li, Lithium (ppm) 35.5 6.3 32.2 38.8 Aqua Regia Digestion
Lu, Lutetium (ppm) 0.041 0.002 0.037 0.045 Aqua Regia Digestion
Mg, Magnesium (wt.%) 2.85 0.209 2.73 2.97 Aqua Regia Digestion
Mn, Manganese (wt.%) 0.013 0.001 0.012 0.013 Aqua Regia Digestion
Mo, Molybdenum (ppm) 14.2 0.61 13.7 14.7 Aqua Regia Digestion
Na, Sodium (wt.%) 0.010 0.001 0.009 0.011 Aqua Regia Digestion
Nd, Neodymium (ppm) 20.2 3.7 15.6 24.7 Aqua Regia Digestion
Ni, Nickel (ppm) 115 4 111 119 Aqua Regia Digestion
P, Phosphorus (wt.%) 0.021 0.001 0.020 0.021 Aqua Regia Digestion
Pb, Lead (ppm) 8.42 0.837 7.99 8.85 Aqua Regia Digestion
Pr, Praseodymium (ppm) 5.28 0.89 4.22 6.34 Aqua Regia Digestion
Rb, Rubidium (ppm) 6.29 1.14 5.66 6.93 Aqua Regia Digestion
Re, Rhenium (ppm) 0.026 0.001 0.023 0.029 Aqua Regia Digestion
S, Sulphur (wt.%) 3.26 0.103 3.18 3.35 Aqua Regia Digestion
Sb, Antimony (ppm) 1.86 0.23 1.71 2.00 Aqua Regia Digestion
Sc, Scandium (ppm) 3.30 0.36 3.08 3.52 Aqua Regia Digestion
Se, Selenium (ppm) 5.65 0.367 5.18 6.12 Aqua Regia Digestion
Sm, Samarium (ppm) 3.20 0.46 2.67 3.73 Aqua Regia Digestion
Sn, Tin (ppm) 1.28 0.070 1.19 1.37 Aqua Regia Digestion
Sr, Strontium (ppm) 16.4 2.5 15.1 17.8 Aqua Regia Digestion
Ta, Tantalum (ppm) < 0.010 IND IND IND Aqua Regia Digestion
Tb, Terbium (ppm) 0.19 0.015 0.17 0.21 Aqua Regia Digestion
Te, Tellurium (ppm) 0.048 0.012 0.033 0.062 Aqua Regia Digestion
Th, Thorium (ppm) 6.18 0.66 5.80 6.55 Aqua Regia Digestion
U, Uranium (ppm) 3.01 0.226 2.86 3.15 Aqua Regia Digestion
V, Vanadium (ppm) 56 9 51 60 Aqua Regia Digestion
W, Tungsten (ppm) 0.96 0.067 0.88 1.05 Aqua Regia Digestion
Y, Yttrium (ppm) 3.10 0.38 2.88 3.32 Aqua Regia Digestion
Yb, Ytterbium (ppm) 0.28 0.04 0.22 0.34 Aqua Regia Digestion
Zn, Zinc (ppm) 13.0 1.23 12.0 14.0 Aqua Regia Digestion
Zr, Zirconium (ppm) 9.39 1.35 8.63 10.15 Aqua Regia Digestion
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