| Description: OREAS 994 was prepared from a blend of copper concentrate laboratory reject samples sourced from several Australian mine site metallurgical plants. Copper, Iron and Sulphur by weight account for 82.5% of the total chemical composition of OREAS 994.
Fifteen ‘umpire’ laboratories undertook copper, silver and moisture analysis on the sample as received. The term ‘umpire’ here refers to the routine analysis by these laboratories using classical methodologies for precious and base metals. Fifteen geoanalytical laboratories also participated in the analytical program to undertake the following: - Full elemental suites by peroxide fusion with ICP-OES and MS finish;
- Full elemental suites by 4-acid digestion with ICP-OES and MS finish;
- Total S by IR combustion furnace.
Download Certificate OREAS994 Download DataPack OREAS994 | Analyte | Certified Value | 1SD | 95% CI Low | 95% CI High | Method |
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| Ag, Silver (ppm) | 183 | 7 | 178 | 187 | 4-Acid Digestion | | Al, Aluminium (wt.%) | 0.696 | 0.02 | 0.685 | 0.708 | 4-Acid Digestion | | As, Arsenic (ppm) | 3483 | 135 | 3402 | 3564 | 4-Acid Digestion | | Be, Beryllium (ppm) | 0.23 | 0.04 | 0.19 | 0.26 | 4-Acid Digestion | | Bi, Bismuth (ppm) | 111 | 5 | 109 | 114 | 4-Acid Digestion | | Ca, Calcium (wt.%) | 0.522 | 0.019 | 0.51 | 0.533 | 4-Acid Digestion | | Cd, Cadmium (ppm) | 27.7 | 1.53 | 26.8 | 28.6 | 4-Acid Digestion | | Ce, Cerium (ppm) | 13.6 | 0.52 | 13.2 | 14 | 4-Acid Digestion | | Co, Cobalt (ppm) | 348 | 9 | 343 | 353 | 4-Acid Digestion | | Cr, Chromium (ppm) | 30.9 | 2.81 | 29 | 32.7 | 4-Acid Digestion | | Cu, Copper (wt.%) | 30.22 | 0.841 | 29.59 | 30.85 | 4-Acid Digestion | | Dy, Dysprosium (ppm) | 0.92 | 0.11 | 0.84 | 1.01 | 4-Acid Digestion | | Er, Erbium (ppm) | 0.47 | 0.08 | 0.41 | 0.53 | 4-Acid Digestion | | Eu, Europium (ppm) | 0.3 | 0.012 | 0.29 | 0.31 | 4-Acid Digestion | | Fe, Iron (wt.%) | 21.45 | 0.679 | 21.11 | 21.8 | 4-Acid Digestion | | Ga, Gallium (ppm) | 4.12 | 0.402 | 3.85 | 4.4 | 4-Acid Digestion | | Gd, Gadolinium (ppm) | 1.1 | 0.12 | 1.01 | 1.19 | 4-Acid Digestion | | Hf, Hafnium (ppm) | 0.59 | 0.06 | 0.56 | 0.62 | 4-Acid Digestion | | In, Indium (ppm) | 7.12 | 0.221 | 6.98 | 7.25 | 4-Acid Digestion | | K, Potassium (wt.%) | 0.181 | 0.013 | 0.174 | 0.188 | 4-Acid Digestion | | La, Lanthanum (ppm) | 7.57 | 0.453 | 7.27 | 7.86 | 4-Acid Digestion | | Li, Lithium (ppm) | 2.12 | 0.38 | 1.82 | 2.42 | 4-Acid Digestion | | Mg, Magnesium (wt.%) | 0.307 | 0.016 | 0.298 | 0.316 | 4-Acid Digestion | | Mn, Manganese (wt.%) | 0.022 | 0.001 | 0.022 | 0.023 | 4-Acid Digestion | | Mo, Molybdenum (ppm) | 661 | 33 | 643 | 680 | 4-Acid Digestion | | Na, Sodium (wt.%) | 0.111 | 0.004 | 0.109 | 0.113 | 4-Acid Digestion | | Nb, Niobium (ppm) | 1.1 | 0.15 | 0.99 | 1.21 | 4-Acid Digestion | | Nd, Neodymium (ppm) | 5.63 | 0.417 | 5.31 | 5.95 | 4-Acid Digestion | | Ni, Nickel (ppm) | 3498 | 130 | 3422 | 3574 | 4-Acid Digestion | | P, Phosphorus (wt.%) | 0.025 | 0.004 | 0.023 | 0.028 | 4-Acid Digestion | | Pb, Lead (wt.%) | 0.225 | 0.008 | 0.221 | 0.229 | 4-Acid Digestion | | Pr, Praseodymium (ppm) | 1.53 | 0.083 | 1.46 | 1.59 | 4-Acid Digestion | | Rb, Rubidium (ppm) | 8.35 | 0.581 | 8.02 | 8.68 | 4-Acid Digestion | | Re, Rhenium (ppm) | 0.44 | 0.029 | 0.42 | 0.46 | 4-Acid Digestion | | Sb, Antimony (ppm) | 489 | 24 | 474 | 504 | 4-Acid Digestion | | Sc, Scandium (ppm) | 1.34 | 0.18 | 1.14 | 1.54 | 4-Acid Digestion | | Se, Selenium (ppm) | 83 | 6.7 | 79 | 87 | 4-Acid Digestion | | Sm, Samarium (ppm) | 1.12 | 0.11 | 1.1 | 1.14 | 4-Acid Digestion | | Sn, Tin (ppm) | 48.7 | 2.98 | 46.8 | 50.5 | 4-Acid Digestion | | Sr, Strontium (ppm) | 25.5 | 1.39 | 24.6 | 26.4 | 4-Acid Digestion | | Tb, Terbium (ppm) | 0.15 | 0.03 | 0.14 | 0.16 | 4-Acid Digestion | | Te, Tellurium (ppm) | 11.5 | 0.48 | 11.2 | 11.8 | 4-Acid Digestion | | Th, Thorium (ppm) | 2.77 | 0.189 | 2.66 | 2.88 | 4-Acid Digestion | | Ti, Titanium (wt.%) | 0.04 | 0.005 | 0.037 | 0.042 | 4-Acid Digestion | | Tl, Thallium (ppm) | 28.1 | 1.03 | 27.5 | 28.7 | 4-Acid Digestion | | Tm, Thulium (ppm) | 0.1 | IND | IND | IND | 4-Acid Digestion | | U, Uranium (ppm) | 4.22 | 0.233 | 4.11 | 4.33 | 4-Acid Digestion | | V, Vanadium (ppm) | 14.9 | 1.8 | 13.7 | 16.2 | 4-Acid Digestion | | W, Tungsten (ppm) | 9.75 | 0.617 | 9.36 | 10.14 | 4-Acid Digestion | | Y, Yttrium (ppm) | 4.48 | 0.54 | 4.15 | 4.81 | 4-Acid Digestion | | Yb, Ytterbium (ppm) | 0.47 | 0.09 | 0.39 | 0.54 | 4-Acid Digestion | | Zn, Zinc (wt.%) | 0.602 | 0.029 | 0.585 | 0.619 | 4-Acid Digestion | | Zr, Zirconium (ppm) | 20.6 | 2.3 | 19.1 | 22.1 | 4-Acid Digestion | | Ag, Silver (ppm) | 181 | 4 | 179 | 184 | Acid Digestion (no HF) | | Cu, Copper (wt.%) | 30 | 0.086 | 29.96 | 30.05 | Classical Wet Chemistry | | S, Sulphur (wt.%) | 31.61 | 0.767 | 31.2 | 32.03 | Infrared Combustion | | Al, Aluminium (wt.%) | 0.706 | 0.017 | 0.695 | 0.717 | Peroxide Fusion ICP | | As, Arsenic (ppm) | 3607 | 135 | 3521 | 3693 | Peroxide Fusion ICP | | Ba, Barium (ppm) | 213 | 9 | 204 | 222 | Peroxide Fusion ICP | | Be, Beryllium (ppm) | 1 | IND | IND | IND | Peroxide Fusion ICP | | Bi, Bismuth (ppm) | 115 | 6 | 110 | 120 | Peroxide Fusion ICP | | Ca, Calcium (wt.%) | 0.542 | 0.018 | 0.528 | 0.557 | Peroxide Fusion ICP | | Cd, Cadmium (ppm) | 29.9 | 2.75 | 26.9 | 32.9 | Peroxide Fusion ICP | | Ce, Cerium (ppm) | 14.5 | 1.13 | 13.3 | 15.8 | Peroxide Fusion ICP | | Co, Cobalt (ppm) | 353 | 8 | 349 | 356 | Peroxide Fusion ICP | | Cr, Chromium (ppm) | 100 | IND | IND | IND | Peroxide Fusion ICP | | Cu, Copper (wt.%) | 29.62 | 0.426 | 29.36 | 29.88 | Peroxide Fusion ICP | | Dy, Dysprosium (ppm) | 1.02 | 0.076 | 0.95 | 1.09 | Peroxide Fusion ICP | | Er, Erbium (ppm) | 0.57 | 0.08 | 0.51 | 0.63 | Peroxide Fusion ICP | | Eu, Europium (ppm) | 0.35 | 0.06 | 0.31 | 0.4 | Peroxide Fusion ICP | | Fe, Iron (wt.%) | 21.48 | 0.498 | 21.24 | 21.72 | Peroxide Fusion ICP | | Ga, Gallium (ppm) | 4.3 | 0.358 | 4.07 | 4.52 | Peroxide Fusion ICP | | In, Indium (ppm) | 7.71 | 0.547 | 7.12 | 8.3 | Peroxide Fusion ICP | | K, Potassium (wt.%) | 0.193 | 0.019 | 0.181 | 0.204 | Peroxide Fusion ICP | | Mg, Magnesium (wt.%) | 0.317 | 0.016 | 0.308 | 0.326 | Peroxide Fusion ICP | | Mn, Manganese (wt.%) | 0.023 | 0.001 | 0.023 | 0.023 | Peroxide Fusion ICP | | Mo, Molybdenum (ppm) | 677 | 25 | 657 | 697 | Peroxide Fusion ICP | | Nd, Neodymium (ppm) | 5.71 | 0.361 | 5.4 | 6.03 | Peroxide Fusion ICP | | Ni, Nickel (ppm) | 3548 | 103 | 3489 | 3608 | Peroxide Fusion ICP | | Pb, Lead (wt.%) | 0.227 | 0.013 | 0.22 | 0.235 | Peroxide Fusion ICP | | Pr, Praseodymium (ppm) | 1.59 | 0.106 | 1.49 | 1.68 | Peroxide Fusion ICP | | Rb, Rubidium (ppm) | 8.81 | 0.569 | 8.29 | 9.32 | Peroxide Fusion ICP | | S, Sulphur (wt.%) | 31.44 | 0.675 | 31.09 | 31.8 | Peroxide Fusion ICP | | Sb, Antimony (ppm) | 499 | 44 | 451 | 547 | Peroxide Fusion ICP | | Se, Selenium (ppm) | 83 | 9 | 76 | 91 | Peroxide Fusion ICP | | Si, Silicon (wt.%) | 3.15 | 0.075 | 3.11 | 3.18 | Peroxide Fusion ICP | | Sm, Samarium (ppm) | 1.23 | 0.22 | 1.06 | 1.41 | Peroxide Fusion ICP | | Sn, Tin (ppm) | 50 | 2.24 | 47.6 | 52.4 | Peroxide Fusion ICP | | Sr, Strontium (ppm) | 28.3 | 3.5 | 24.8 | 31.8 | Peroxide Fusion ICP | | Te, Tellurium (ppm) | 13.8 | 2.2 | 10.8 | 16.7 | Peroxide Fusion ICP | | Th, Thorium (ppm) | 2.86 | 0.138 | 2.76 | 2.95 | Peroxide Fusion ICP | | Ti, Titanium (wt.%) | 0.05 | 0.001 | 0.049 | 0.05 | Peroxide Fusion ICP | | Tl, Thallium (ppm) | 27.7 | 1.16 | 26.7 | 28.6 | Peroxide Fusion ICP | | U, Uranium (ppm) | 4.26 | 0.48 | 3.83 | 4.68 | Peroxide Fusion ICP | | W, Tungsten (ppm) | 10.9 | 1.9 | 9.1 | 12.6 | Peroxide Fusion ICP | | Y, Yttrium (ppm) | 5.42 | 0.497 | 4.98 | 5.85 | Peroxide Fusion ICP | | Zn, Zinc (wt.%) | 0.611 | 0.024 | 0.598 | 0.624 | Peroxide Fusion ICP |
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