Specifications
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CRM State:
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Matrix:
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Mineralisation:
OREAS 551 was prepared from a blend of copper-cobalt oxide 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 hosted within dolomitic argillite, shales, sandstone and dolomite
horizons. Significant oxide minerals include malachite, chalcocite, digenite and
hetrogenite.
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.
Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits High | Method |
---|---|---|---|---|---|
Cu, Copper (wt.%) | 0.566 | 0.012 | 0.561 | 0.570 | Peroxide Fusion ICP |
Co, Cobalt (wt.%) | 0.306 | 0.006 | 0.304 | 0.309 | Peroxide Fusion ICP |
S, Sulphur (wt.%) | 0.163 | 0.009 | 0.160 | 0.166 | Infrared Combustion |
Al2O3, Aluminium(III) oxide (wt.%) | 4.50 | 0.055 | 4.48 | 4.52 | Borate Fusion XRF |
BaO, Barium oxide (ppm) | 457 | 71 | 410 | 504 | Borate Fusion XRF |
CaO, Calcium oxide (wt.%) | 8.18 | 0.092 | 8.14 | 8.22 | Borate Fusion XRF |
Co, Cobalt (wt.%) | 0.303 | 0.008 | 0.299 | 0.308 | Borate Fusion XRF |
Cr2O3, Chromium(III) oxide (ppm) | < 100 | IND | IND | IND | Borate Fusion XRF |
Cu, Copper (wt.%) | 0.569 | 0.015 | 0.561 | 0.577 | Borate Fusion XRF |
Fe2O3, Iron(III) oxide (wt.%) | 1.52 | 0.018 | 1.51 | 1.53 | Borate Fusion XRF |
K2O, Potassium oxide (wt.%) | 0.803 | 0.015 | 0.796 | 0.810 | Borate Fusion XRF |
MgO, Magnesium oxide (wt.%) | 8.13 | 0.106 | 8.07 | 8.19 | Borate Fusion XRF |
MnO, Manganese oxide (wt.%) | 0.187 | 0.005 | 0.184 | 0.189 | Borate Fusion XRF |
P2O5, Phosphorus(V) oxide (wt.%) | 0.080 | 0.005 | 0.078 | 0.083 | Borate Fusion XRF |
SiO2, Silicon dioxide (wt.%) | 60.59 | 0.609 | 60.31 | 60.87 | Borate Fusion XRF |
SO3, Sulphur trioxide (wt.%) | 0.418 | 0.011 | 0.410 | 0.426 | Borate Fusion XRF |
SrO, Strontium oxide (ppm) | < 100 | IND | IND | IND | Borate Fusion XRF |
TiO2, Titanium dioxide (wt.%) | 0.253 | 0.009 | 0.249 | 0.256 | Borate Fusion XRF |
LOI1000, Loss On Ignition @1000 °C (wt.%) | 14.18 | 0.133 | 14.12 | 14.24 | Thermogravimetry |
C, Carbon (wt.%) | 3.51 | 0.072 | 3.48 | 3.54 | Infrared Combustion |
Co, Cobalt (wt.%) | 0.217 | 0.027 | 0.193 | 0.241 | Sulphuric Acid 5% Leach |
Cu, Copper (wt.%) | 0.419 | 0.018 | 0.410 | 0.428 | Sulphuric Acid 5% Leach |
Co, Cobalt (wt.%) | 0.203 | 0.036 | 0.179 | 0.227 | Sulphuric Acid 10% Leach |
Cu, Copper (wt.%) | 0.445 | 0.042 | 0.416 | 0.473 | Sulphuric Acid 10% Leach |
Ag, Silver (ppm) | < 1.00 | IND | IND | IND | Peroxide Fusion ICP |
Al, Aluminium (wt.%) | 2.39 | 0.050 | 2.37 | 2.41 | Peroxide Fusion ICP |
B, Boron (ppm) | 198 | 8 | 191 | 206 | Peroxide Fusion ICP |
Ba, Barium (ppm) | 441 | 16 | 434 | 449 | Peroxide Fusion ICP |
Bi, Bismuth (ppm) | 1.46 | 0.27 | 1.23 | 1.69 | Peroxide Fusion ICP |
Ca, Calcium (wt.%) | 5.89 | 0.108 | 5.84 | 5.93 | Peroxide Fusion ICP |
Ce, Cerium (ppm) | 34.5 | 2.24 | 32.4 | 36.5 | Peroxide Fusion ICP |
Cs, Caesium (ppm) | 0.70 | 0.08 | 0.64 | 0.75 | Peroxide Fusion ICP |
Dy, Dysprosium (ppm) | 2.95 | 0.203 | 2.85 | 3.04 | Peroxide Fusion ICP |
Er, Erbium (ppm) | 1.58 | 0.115 | 1.51 | 1.65 | Peroxide Fusion ICP |
Eu, Europium (ppm) | 0.71 | 0.11 | 0.64 | 0.78 | Peroxide Fusion ICP |
Fe, Iron (wt.%) | 1.08 | 0.030 | 1.06 | 1.09 | Peroxide Fusion ICP |
Ga, Gallium (ppm) | 6.25 | 0.74 | 5.82 | 6.69 | Peroxide Fusion ICP |
Gd, Gadolinium (ppm) | 3.71 | 0.44 | 3.37 | 4.05 | Peroxide Fusion ICP |
Ho, Holmium (ppm) | 0.56 | 0.039 | 0.54 | 0.58 | Peroxide Fusion ICP |
K, Potassium (wt.%) | 0.710 | 0.026 | 0.693 | 0.727 | Peroxide Fusion ICP |
La, Lanthanum (ppm) | 21.3 | 1.04 | 20.8 | 21.8 | Peroxide Fusion ICP |
Li, Lithium (ppm) | 79 | 3.7 | 76 | 82 | Peroxide Fusion ICP |
Lu, Lutetium (ppm) | 0.21 | 0.018 | 0.20 | 0.23 | Peroxide Fusion ICP |
Mg, Magnesium (wt.%) | 4.88 | 0.066 | 4.85 | 4.91 | Peroxide Fusion ICP |
Mn, Manganese (wt.%) | 0.144 | 0.006 | 0.141 | 0.146 | Peroxide Fusion ICP |
Mo, Molybdenum (ppm) | 2.57 | 0.49 | 2.17 | 2.98 | Peroxide Fusion ICP |
Nd, Neodymium (ppm) | 17.0 | 1.19 | 16.1 | 18.0 | Peroxide Fusion ICP |
P, Phosphorus (wt.%) | 0.038 | 0.006 | 0.033 | 0.043 | Peroxide Fusion ICP |
Pb, Lead (ppm) | 9.90 | 2.92 | 7.82 | 11.99 | Peroxide Fusion ICP |
Pr, Praseodymium (ppm) | 4.57 | 0.279 | 4.41 | 4.73 | Peroxide Fusion ICP |
Rb, Rubidium (ppm) | 25.8 | 2.27 | 24.7 | 27.0 | Peroxide Fusion ICP |
S, Sulphur (wt.%) | 0.167 | 0.015 | 0.159 | 0.176 | Peroxide Fusion ICP |
Sb, Antimony (ppm) | < 1.00 | IND | IND | IND | Peroxide Fusion ICP |
Si, Silicon (wt.%) | 28.94 | 0.586 | 28.61 | 29.27 | Peroxide Fusion ICP |
Sm, Samarium (ppm) | 3.66 | 0.280 | 3.56 | 3.77 | Peroxide Fusion ICP |
Sr, Strontium (ppm) | 67 | 4.1 | 65 | 69 | Peroxide Fusion ICP |
Tb, Terbium (ppm) | 0.53 | 0.06 | 0.50 | 0.56 | Peroxide Fusion ICP |
Th, Thorium (ppm) | 4.20 | 0.363 | 3.99 | 4.41 | Peroxide Fusion ICP |
Ti, Titanium (wt.%) | 0.152 | 0.006 | 0.150 | 0.154 | Peroxide Fusion ICP |
Tl, Thallium (ppm) | < 0.50 | IND | IND | IND | Peroxide Fusion ICP |
Tm, Thulium (ppm) | 0.22 | 0.03 | 0.20 | 0.23 | Peroxide Fusion ICP |
U, Uranium (ppm) | 8.73 | 0.612 | 8.30 | 9.17 | Peroxide Fusion ICP |
V, Vanadium (ppm) | 54 | 7 | 50 | 58 | Peroxide Fusion ICP |
Y, Yttrium (ppm) | 15.2 | 0.96 | 14.5 | 15.9 | Peroxide Fusion ICP |
Yb, Ytterbium (ppm) | 1.45 | 0.121 | 1.37 | 1.52 | Peroxide Fusion ICP |
Zn, Zinc (ppm) | 41.1 | 11.1 | 35.4 | 46.8 | Peroxide Fusion ICP |
Ag, Silver (ppm) | 0.125 | 0.029 | 0.111 | 0.139 | 4-Acid Digestion |
Al, Aluminium (wt.%) | 2.36 | 0.056 | 2.34 | 2.38 | 4-Acid Digestion |
As, Arsenic (ppm) | 6.50 | 0.79 | 6.16 | 6.85 | 4-Acid Digestion |
Ba, Barium (ppm) | 437 | 18 | 430 | 445 | 4-Acid Digestion |
Be, Beryllium (ppm) | 1.21 | 0.107 | 1.19 | 1.24 | 4-Acid Digestion |
Bi, Bismuth (ppm) | 1.51 | 0.100 | 1.47 | 1.55 | 4-Acid Digestion |
Ca, Calcium (wt.%) | 5.81 | 0.170 | 5.74 | 5.88 | 4-Acid Digestion |
Cd, Cadmium (ppm) | 0.12 | 0.011 | 0.11 | 0.12 | 4-Acid Digestion |
Ce, Cerium (ppm) | 29.5 | 4.2 | 27.5 | 31.6 | 4-Acid Digestion |
Co, Cobalt (wt.%) | 0.305 | 0.015 | 0.299 | 0.311 | 4-Acid Digestion |
Cr, Chromium (ppm) | 20.3 | 5.1 | 18.0 | 22.6 | 4-Acid Digestion |
Cs, Caesium (ppm) | 0.63 | 0.038 | 0.61 | 0.64 | 4-Acid Digestion |
Cu, Copper (wt.%) | 0.565 | 0.017 | 0.559 | 0.571 | 4-Acid Digestion |
Dy, Dysprosium (ppm) | 2.80 | 0.116 | 2.68 | 2.93 | 4-Acid Digestion |
Er, Erbium (ppm) | 1.49 | 0.055 | 1.44 | 1.53 | 4-Acid Digestion |
Eu, Europium (ppm) | 0.68 | 0.027 | 0.66 | 0.70 | 4-Acid Digestion |
Fe, Iron (wt.%) | 1.05 | 0.048 | 1.03 | 1.07 | 4-Acid Digestion |
Ga, Gallium (ppm) | 6.06 | 0.260 | 5.95 | 6.17 | 4-Acid Digestion |
Gd, Gadolinium (ppm) | 3.43 | 0.179 | 3.31 | 3.54 | 4-Acid Digestion |
Hf, Hafnium (ppm) | 1.58 | 0.16 | 1.51 | 1.64 | 4-Acid Digestion |
Ho, Holmium (ppm) | 0.52 | 0.05 | 0.48 | 0.56 | 4-Acid Digestion |
In, Indium (ppm) | 0.16 | 0.008 | 0.15 | 0.16 | 4-Acid Digestion |
K, Potassium (wt.%) | 0.689 | 0.035 | 0.673 | 0.705 | 4-Acid Digestion |
La, Lanthanum (ppm) | 16.4 | 2.7 | 15.1 | 17.7 | 4-Acid Digestion |
Li, Lithium (ppm) | 79 | 4.1 | 77 | 81 | 4-Acid Digestion |
Lu, Lutetium (ppm) | 0.19 | 0.011 | 0.19 | 0.20 | 4-Acid Digestion |
Mg, Magnesium (wt.%) | 4.90 | 0.127 | 4.85 | 4.95 | 4-Acid Digestion |
Mn, Manganese (wt.%) | 0.141 | 0.006 | 0.139 | 0.143 | 4-Acid Digestion |
Mo, Molybdenum (ppm) | 2.41 | 0.160 | 2.34 | 2.48 | 4-Acid Digestion |
Na, Sodium (wt.%) | 0.024 | 0.006 | 0.021 | 0.027 | 4-Acid Digestion |
Nb, Niobium (ppm) | 4.00 | 0.88 | 3.59 | 4.41 | 4-Acid Digestion |
Nd, Neodymium (ppm) | 15.0 | 1.6 | 14.0 | 16.1 | 4-Acid Digestion |
Ni, Nickel (ppm) | 17.7 | 1.68 | 17.0 | 18.4 | 4-Acid Digestion |
P, Phosphorus (wt.%) | 0.035 | 0.002 | 0.035 | 0.036 | 4-Acid Digestion |
Pb, Lead (ppm) | 7.72 | 0.78 | 7.28 | 8.15 | 4-Acid Digestion |
Pr, Praseodymium (ppm) | 3.71 | 0.45 | 3.40 | 4.01 | 4-Acid Digestion |
Rb, Rubidium (ppm) | 25.1 | 1.21 | 24.6 | 25.7 | 4-Acid Digestion |
Re, Rhenium (ppm) | 0.005 | 0.001 | 0.004 | 0.006 | 4-Acid Digestion |
S, Sulphur (wt.%) | 0.172 | 0.009 | 0.168 | 0.175 | 4-Acid Digestion |
Sb, Antimony (ppm) | 0.29 | 0.025 | 0.28 | 0.30 | 4-Acid Digestion |
Sc, Scandium (ppm) | 5.13 | 0.259 | 5.01 | 5.26 | 4-Acid Digestion |
Sm, Samarium (ppm) | 3.38 | 0.255 | 3.22 | 3.55 | 4-Acid Digestion |
Sn, Tin (ppm) | 0.97 | 0.12 | 0.92 | 1.02 | 4-Acid Digestion |
Sr, Strontium (ppm) | 62 | 2.8 | 61 | 64 | 4-Acid Digestion |
Ta, Tantalum (ppm) | 0.28 | 0.09 | 0.23 | 0.33 | 4-Acid Digestion |
Tb, Terbium (ppm) | 0.51 | 0.022 | 0.50 | 0.53 | 4-Acid Digestion |
Th, Thorium (ppm) | 4.01 | 0.307 | 3.88 | 4.13 | 4-Acid Digestion |
Ti, Titanium (wt.%) | 0.088 | 0.023 | 0.078 | 0.099 | 4-Acid Digestion |
Tl, Thallium (ppm) | 0.089 | 0.008 | 0.086 | 0.091 | 4-Acid Digestion |
Tm, Thulium (ppm) | 0.20 | 0.008 | 0.20 | 0.21 | 4-Acid Digestion |
U, Uranium (ppm) | 8.81 | 0.711 | 8.56 | 9.07 | 4-Acid Digestion |
V, Vanadium (ppm) | 51 | 2.8 | 50 | 52 | 4-Acid Digestion |
W, Tungsten (ppm) | 0.82 | 0.18 | 0.76 | 0.88 | 4-Acid Digestion |
Y, Yttrium (ppm) | 14.0 | 0.81 | 13.6 | 14.3 | 4-Acid Digestion |
Yb, Ytterbium (ppm) | 1.35 | 0.125 | 1.28 | 1.43 | 4-Acid Digestion |
Zn, Zinc (ppm) | 31.3 | 2.18 | 30.4 | 32.2 | 4-Acid Digestion |
Zr, Zirconium (ppm) | 56 | 2.9 | 55 | 57 | 4-Acid Digestion |
Ag, Silver (ppm) | 0.086 | 0.009 | 0.083 | 0.089 | Aqua Regia Digestion |
Al, Aluminium (wt.%) | 0.987 | 0.085 | 0.946 | 1.028 | Aqua Regia Digestion |
As, Arsenic (ppm) | 5.69 | 0.557 | 5.35 | 6.03 | Aqua Regia Digestion |
Au, Gold (ppm) | 0.005 | 0.001 | 0.004 | 0.005 | Aqua Regia Digestion |
B, Boron (ppm) | 9.07 | 1.20 | 7.45 | 10.68 | Aqua Regia Digestion |
Ba, Barium (ppm) | 393 | 28 | 379 | 407 | Aqua Regia Digestion |
Be, Beryllium (ppm) | 0.84 | 0.051 | 0.82 | 0.86 | Aqua Regia Digestion |
Bi, Bismuth (ppm) | 1.24 | 0.057 | 1.21 | 1.26 | Aqua Regia Digestion |
Ca, Calcium (wt.%) | 5.70 | 0.094 | 5.66 | 5.74 | Aqua Regia Digestion |
Cd, Cadmium (ppm) | 0.11 | 0.01 | 0.11 | 0.12 | Aqua Regia Digestion |
Ce, Cerium (ppm) | 11.3 | 0.98 | 10.8 | 11.7 | Aqua Regia Digestion |
Co, Cobalt (wt.%) | 0.287 | 0.012 | 0.282 | 0.292 | Aqua Regia Digestion |
Cr, Chromium (ppm) | 18.2 | 1.82 | 17.4 | 19.1 | Aqua Regia Digestion |
Cs, Caesium (ppm) | 0.12 | 0.03 | 0.10 | 0.14 | Aqua Regia Digestion |
Cu, Copper (wt.%) | 0.561 | 0.015 | 0.554 | 0.567 | Aqua Regia Digestion |
Dy, Dysprosium (ppm) | 1.83 | 0.093 | 1.74 | 1.92 | Aqua Regia Digestion |
Er, Erbium (ppm) | 0.82 | 0.028 | 0.78 | 0.86 | Aqua Regia Digestion |
Eu, Europium (ppm) | 0.50 | 0.010 | 0.49 | 0.51 | Aqua Regia Digestion |
Fe, Iron (wt.%) | 0.885 | 0.035 | 0.869 | 0.901 | Aqua Regia Digestion |
Ga, Gallium (ppm) | 2.75 | 0.203 | 2.65 | 2.86 | Aqua Regia Digestion |
Gd, Gadolinium (ppm) | 2.46 | 0.25 | 2.13 | 2.79 | Aqua Regia Digestion |
Ge, Germanium (ppm) | < 0.050 | IND | IND | IND | Aqua Regia Digestion |
Hf, Hafnium (ppm) | 0.24 | 0.04 | 0.22 | 0.26 | Aqua Regia Digestion |
Hg, Mercury (ppm) | 0.027 | 0.006 | 0.023 | 0.031 | Aqua Regia Digestion |
Ho, Holmium (ppm) | 0.32 | 0.017 | 0.30 | 0.33 | Aqua Regia Digestion |
In, Indium (ppm) | 0.14 | 0.007 | 0.13 | 0.14 | Aqua Regia Digestion |
K, Potassium (wt.%) | 0.129 | 0.016 | 0.122 | 0.137 | Aqua Regia Digestion |
La, Lanthanum (ppm) | 4.60 | 0.62 | 4.30 | 4.89 | Aqua Regia Digestion |
Li, Lithium (ppm) | 61 | 6 | 58 | 65 | Aqua Regia Digestion |
Lu, Lutetium (ppm) | 0.099 | 0.009 | 0.090 | 0.109 | Aqua Regia Digestion |
Mg, Magnesium (wt.%) | 4.60 | 0.195 | 4.51 | 4.69 | Aqua Regia Digestion |
Mn, Manganese (wt.%) | 0.140 | 0.008 | 0.137 | 0.144 | Aqua Regia Digestion |
Mo, Molybdenum (ppm) | 2.29 | 0.130 | 2.23 | 2.34 | Aqua Regia Digestion |
Na, Sodium (wt.%) | 0.010 | 0.003 | 0.009 | 0.012 | Aqua Regia Digestion |
Nb, Niobium (ppm) | < 0.050 | IND | IND | IND | Aqua Regia Digestion |
Nd, Neodymium (ppm) | 7.34 | 0.300 | 7.02 | 7.65 | Aqua Regia Digestion |
Ni, Nickel (ppm) | 16.7 | 1.35 | 16.0 | 17.4 | Aqua Regia Digestion |
P, Phosphorus (wt.%) | 0.033 | 0.002 | 0.032 | 0.034 | Aqua Regia Digestion |
Pb, Lead (ppm) | 6.69 | 0.559 | 6.41 | 6.98 | Aqua Regia Digestion |
Pr, Praseodymium (ppm) | 1.41 | 0.21 | 1.13 | 1.69 | Aqua Regia Digestion |
Rb, Rubidium (ppm) | 4.16 | 0.49 | 3.91 | 4.42 | Aqua Regia Digestion |
Re, Rhenium (ppm) | 0.005 | 0.001 | 0.004 | 0.005 | Aqua Regia Digestion |
S, Sulphur (wt.%) | 0.157 | 0.015 | 0.150 | 0.164 | Aqua Regia Digestion |
Sb, Antimony (ppm) | 0.18 | 0.018 | 0.18 | 0.19 | Aqua Regia Digestion |
Sc, Scandium (ppm) | 3.78 | 0.317 | 3.61 | 3.96 | Aqua Regia Digestion |
Se, Selenium (ppm) | 1.02 | 0.24 | 0.89 | 1.16 | Aqua Regia Digestion |
Sn, Tin (ppm) | 0.31 | 0.03 | 0.29 | 0.32 | Aqua Regia Digestion |
Sr, Strontium (ppm) | 49.7 | 3.06 | 48.2 | 51.2 | Aqua Regia Digestion |
Ta, Tantalum (ppm) | < 0.010 | IND | IND | IND | Aqua Regia Digestion |
Tb, Terbium (ppm) | 0.35 | 0.019 | 0.34 | 0.37 | Aqua Regia Digestion |
Th, Thorium (ppm) | 1.80 | 0.145 | 1.74 | 1.86 | Aqua Regia Digestion |
Tl, Thallium (ppm) | 0.046 | 0.006 | 0.043 | 0.048 | Aqua Regia Digestion |
U, Uranium (ppm) | 6.71 | 0.410 | 6.56 | 6.86 | Aqua Regia Digestion |
V, Vanadium (ppm) | 29.8 | 1.54 | 29.0 | 30.5 | Aqua Regia Digestion |
W, Tungsten (ppm) | 0.42 | 0.08 | 0.40 | 0.45 | Aqua Regia Digestion |
Y, Yttrium (ppm) | 8.46 | 0.350 | 8.26 | 8.65 | Aqua Regia Digestion |
Yb, Ytterbium (ppm) | 0.66 | 0.048 | 0.63 | 0.70 | Aqua Regia Digestion |
Zn, Zinc (ppm) | 28.6 | 1.56 | 27.9 | 29.4 | Aqua Regia Digestion |
Zr, Zirconium (ppm) | 7.42 | 0.437 | 7.16 | 7.68 | Aqua Regia Digestion |