| Description: OREAS 135b has been prepared from a blend of black slate and Zn-Pb-Ag ores from the Dugald River and Cannington deposits located in Northern Queensland, Australia.
Twenty-six commercial analytical laboratories participated in the program to certify: - Majors & base metals by oxidising fusion with X-ray fluorescence finish;
- Loss on ignition at 1000° Celsius;
- Total Sulphur by infrared combustion furnace or C/S analyser;
- Full ICP-OES and MS elemental suites by peroxide fusion;
- Full ICP-OES and MS elemental suites by 4-acid (HNO3-HF-HClO4-HCl) digestion;
- Full ICP-OES and MS elemental suites by aqua regia digestion.
Download Certificate OREAS135b Download DataPack OREAS135b | Analyte | Certified Value | 1SD | 95% CI Low | 95% CI High | Method |
|---|
| Ag, Silver (ppm) | 52.9 | 2.75 | 50.6 | 55.1 | 4-Acid Digestion | | Al, Aluminium (wt.%) | 5.81 | 0.244 | 5.63 | 5.99 | 4-Acid Digestion | | As, Arsenic (ppm) | 707 | 42 | 668 | 746 | 4-Acid Digestion | | Be, Beryllium (ppm) | 2.45 | 0.25 | 2.3 | 2.6 | 4-Acid Digestion | | Bi, Bismuth (ppm) | 2.66 | 0.083 | 2.56 | 2.76 | 4-Acid Digestion | | Ca, Calcium (wt.%) | 0.481 | 0.024 | 0.467 | 0.496 | 4-Acid Digestion | | Cd, Cadmium (ppm) | 69 | 4.3 | 67 | 71 | 4-Acid Digestion | | Ce, Cerium (ppm) | 86 | 9 | 80 | 92 | 4-Acid Digestion | | Co, Cobalt (ppm) | 6.26 | 0.68 | 5.63 | 6.89 | 4-Acid Digestion | | Cr, Chromium (ppm) | 76 | 6.9 | 72 | 80 | 4-Acid Digestion | | Cs, Caesium (ppm) | 3.76 | 0.33 | 3.52 | 3.99 | 4-Acid Digestion | | Cu, Copper (ppm) | 114 | 6 | 109 | 119 | 4-Acid Digestion | | Dy, Dysprosium (ppm) | 4.35 | 0.56 | 3.84 | 4.86 | 4-Acid Digestion | | Er, Erbium (ppm) | 2.04 | 0.34 | 1.73 | 2.35 | 4-Acid Digestion | | Eu, Europium (ppm) | 2.06 | 0.141 | 1.88 | 2.24 | 4-Acid Digestion | | Fe, Iron (wt.%) | 5.36 | 0.243 | 5.2 | 5.51 | 4-Acid Digestion | | Ga, Gallium (ppm) | 18.3 | 1.41 | 17.2 | 19.3 | 4-Acid Digestion | | Gd, Gadolinium (ppm) | 5.87 | 0.47 | 5.33 | 6.4 | 4-Acid Digestion | | Hf, Hafnium (ppm) | 2.12 | 0.19 | 1.93 | 2.3 | 4-Acid Digestion | | Ho, Holmium (ppm) | 0.77 | 0.12 | 0.67 | 0.88 | 4-Acid Digestion | | In, Indium (ppm) | 0.69 | 0.066 | 0.6 | 0.77 | 4-Acid Digestion | | K, Potassium (wt.%) | 2.52 | 0.107 | 2.44 | 2.6 | 4-Acid Digestion | | La, Lanthanum (ppm) | 41 | 7 | 37 | 44.9 | 4-Acid Digestion | | Li, Lithium (ppm) | 21 | 1.37 | 19.7 | 22.2 | 4-Acid Digestion | | Lu, Lutetium (ppm) | 0.29 | 0.04 | 0.25 | 0.33 | 4-Acid Digestion | | Mg, Magnesium (wt.%) | 0.357 | 0.02 | 0.344 | 0.37 | 4-Acid Digestion | | Mn, Manganese (wt.%) | 0.326 | 0.018 | 0.313 | 0.34 | 4-Acid Digestion | | Mo, Molybdenum (ppm) | 4.14 | 0.49 | 3.68 | 4.59 | 4-Acid Digestion | | Na, Sodium (wt.%) | 0.095 | 0.009 | 0.087 | 0.103 | 4-Acid Digestion | | Nd, Neodymium (ppm) | 36.3 | 2.72 | 33.8 | 38.8 | 4-Acid Digestion | | Ni, Nickel (ppm) | 14.9 | 1.27 | 13.2 | 16.6 | 4-Acid Digestion | | P, Phosphorus (wt.%) | 0.044 | 0.002 | 0.042 | 0.045 | 4-Acid Digestion | | Pb, Lead (wt.%) | 1.71 | 0.061 | 1.66 | 1.76 | 4-Acid Digestion | | Pr, Praseodymium (ppm) | 9.63 | 0.717 | 9 | 10.26 | 4-Acid Digestion | | Rb, Rubidium (ppm) | 137 | 8 | 129 | 144 | 4-Acid Digestion | | S, Sulphur (wt.%) | 3.03 | 0.114 | 2.94 | 3.12 | 4-Acid Digestion | | Sb, Antimony (ppm) | 37.6 | 3.18 | 34.3 | 40.9 | 4-Acid Digestion | | Sc, Scandium (ppm) | 10.3 | 0.54 | 9.5 | 11 | 4-Acid Digestion | | Se, Selenium (ppm) | 2.79 | 0.46 | 1.71 | 3.87 | 4-Acid Digestion | | Sm, Samarium (ppm) | 7.28 | 0.8 | 6.62 | 7.94 | 4-Acid Digestion | | Sn, Tin (ppm) | 4.02 | 0.354 | 3.63 | 4.41 | 4-Acid Digestion | | Sr, Strontium (ppm) | 114 | 8 | 109 | 119 | 4-Acid Digestion | | Tb, Terbium (ppm) | 0.8 | 0.1 | 0.7 | 0.89 | 4-Acid Digestion | | Te, Tellurium (ppm) | 0.2 | 0.08 | 0.09 | 0.31 | 4-Acid Digestion | | Th, Thorium (ppm) | 12.3 | 1.06 | 11.5 | 13.1 | 4-Acid Digestion | | Ti, Titanium (wt.%) | 0.189 | 0.037 | 0.168 | 0.209 | 4-Acid Digestion | | Tl, Thallium (ppm) | 5.65 | 0.348 | 5.38 | 5.92 | 4-Acid Digestion | | Tm, Thulium (ppm) | 0.29 | 0.05 | 0.24 | 0.34 | 4-Acid Digestion | | U, Uranium (ppm) | 5.06 | 0.396 | 4.73 | 5.38 | 4-Acid Digestion | | V, Vanadium (ppm) | 141 | 5 | 136 | 147 | 4-Acid Digestion | | W, Tungsten (ppm) | 3.17 | 0.48 | 2.72 | 3.62 | 4-Acid Digestion | | Y, Yttrium (ppm) | 21.1 | 2.9 | 18.7 | 23.5 | 4-Acid Digestion | | Yb, Ytterbium (ppm) | 1.9 | 0.29 | 1.62 | 2.17 | 4-Acid Digestion | | Zn, Zinc (wt.%) | 2.73 | 0.11 | 2.66 | 2.8 | 4-Acid Digestion | | Zr, Zirconium (ppm) | 67 | 6 | 63 | 71 | 4-Acid Digestion | | Ag, Silver (ppm) | 53.5 | 1.34 | 51.6 | 55.3 | Aqua Regia Digestion | | Al, Aluminium (wt.%) | 1.05 | 0.168 | 0.96 | 1.14 | Aqua Regia Digestion | | As, Arsenic (ppm) | 707 | 47 | 680 | 733 | Aqua Regia Digestion | | Be, Beryllium (ppm) | 0.74 | 0.14 | 0.65 | 0.82 | Aqua Regia Digestion | | Bi, Bismuth (ppm) | 2.5 | 0.181 | 2.34 | 2.66 | Aqua Regia Digestion | | Ca, Calcium (wt.%) | 0.425 | 0.016 | 0.412 | 0.438 | Aqua Regia Digestion | | Cd, Cadmium (ppm) | 67 | 2.6 | 65 | 69 | Aqua Regia Digestion | | Ce, Cerium (ppm) | 68 | 8 | 62 | 74 | Aqua Regia Digestion | | Co, Cobalt (ppm) | 5.59 | 0.73 | 5.21 | 5.97 | Aqua Regia Digestion | | Cr, Chromium (ppm) | 29.7 | 2.37 | 28 | 31.3 | Aqua Regia Digestion | | Cs, Caesium (ppm) | 1.43 | 0.114 | 1.33 | 1.54 | Aqua Regia Digestion | | Cu, Copper (ppm) | 116 | 6 | 112 | 120 | Aqua Regia Digestion | | Dy, Dysprosium (ppm) | 2.35 | 0.38 | 1.97 | 2.74 | Aqua Regia Digestion | | Er, Erbium (ppm) | 0.99 | 0.13 | 0.84 | 1.14 | Aqua Regia Digestion | | Eu, Europium (ppm) | 1.4 | 0.135 | 1.24 | 1.56 | Aqua Regia Digestion | | Fe, Iron (wt.%) | 5.1 | 0.201 | 4.98 | 5.22 | Aqua Regia Digestion | | Ga, Gallium (ppm) | 4.48 | 0.82 | 3.91 | 5.04 | Aqua Regia Digestion | | Gd, Gadolinium (ppm) | 4.01 | 0.56 | 3.43 | 4.59 | Aqua Regia Digestion | | Hf, Hafnium (ppm) | 0.56 | 0.08 | 0.5 | 0.62 | Aqua Regia Digestion | | Hg, Mercury (ppm) | 0.91 | 0.067 | 0.83 | 0.98 | Aqua Regia Digestion | | Ho, Holmium (ppm) | 0.39 | 0.06 | 0.33 | 0.45 | Aqua Regia Digestion | | In, Indium (ppm) | 0.63 | 0.06 | 0.58 | 0.68 | Aqua Regia Digestion | | K, Potassium (wt.%) | 0.328 | 0.061 | 0.297 | 0.359 | Aqua Regia Digestion | | La, Lanthanum (ppm) | 29.5 | 4.7 | 26.5 | 32.4 | Aqua Regia Digestion | | Li, Lithium (ppm) | 5.37 | 1.16 | 4.43 | 6.31 | Aqua Regia Digestion | | Lu, Lutetium (ppm) | 0.11 | 0.02 | 0.1 | 0.13 | Aqua Regia Digestion | | Mg, Magnesium (wt.%) | 0.118 | 0.012 | 0.108 | 0.127 | Aqua Regia Digestion | | Mn, Manganese (wt.%) | 0.293 | 0.017 | 0.284 | 0.303 | Aqua Regia Digestion | | Mo, Molybdenum (ppm) | 3.86 | 0.4 | 3.58 | 4.13 | Aqua Regia Digestion | | Nd, Neodymium (ppm) | 25.8 | 3.3 | 22.3 | 29.2 | Aqua Regia Digestion | | Ni, Nickel (ppm) | 13 | 1.13 | 12.2 | 13.8 | Aqua Regia Digestion | | P, Phosphorus (wt.%) | 0.041 | 0.002 | 0.039 | 0.042 | Aqua Regia Digestion | | Pb, Lead (wt.%) | 1.69 | 0.037 | 1.66 | 1.73 | Aqua Regia Digestion | | Pr, Praseodymium (ppm) | 6.84 | 1.03 | 5.64 | 8.04 | Aqua Regia Digestion | | Rb, Rubidium (ppm) | 23.5 | 5.4 | 20 | 27 | Aqua Regia Digestion | | S, Sulphur (wt.%) | 3.08 | 0.15 | 2.99 | 3.18 | Aqua Regia Digestion | | Sb, Antimony (ppm) | 29.9 | 4.3 | 27.4 | 32.3 | Aqua Regia Digestion | | Sc, Scandium (ppm) | 1.95 | 0.38 | 1.62 | 2.29 | Aqua Regia Digestion | | Se, Selenium (ppm) | 2.71 | 0.56 | 2.11 | 3.31 | Aqua Regia Digestion | | Sm, Samarium (ppm) | 4.86 | 0.72 | 4.14 | 5.58 | Aqua Regia Digestion | | Sn, Tin (ppm) | 1.65 | 0.2 | 1.48 | 1.81 | Aqua Regia Digestion | | Sr, Strontium (ppm) | 26.2 | 2.7 | 24.9 | 27.6 | Aqua Regia Digestion | | Tb, Terbium (ppm) | 0.53 | 0.06 | 0.46 | 0.6 | Aqua Regia Digestion | | Te, Tellurium (ppm) | 0.15 | 0.03 | 0.11 | 0.2 | Aqua Regia Digestion | | Th, Thorium (ppm) | 9.29 | 1.09 | 8.59 | 9.99 | Aqua Regia Digestion | | Ti, Titanium (wt.%) | 0.01 | 0.001 | 0.01 | 0.011 | Aqua Regia Digestion | | Tl, Thallium (ppm) | 1.22 | 0.17 | 1.11 | 1.34 | Aqua Regia Digestion | | Tm, Thulium (ppm) | 0.12 | 0.02 | 0.09 | 0.15 | Aqua Regia Digestion | | U, Uranium (ppm) | 3.51 | 0.223 | 3.3 | 3.71 | Aqua Regia Digestion | | V, Vanadium (ppm) | 28.1 | 4.7 | 25.6 | 30.5 | Aqua Regia Digestion | | W, Tungsten (ppm) | 1.34 | 0.23 | 1.14 | 1.53 | Aqua Regia Digestion | | Y, Yttrium (ppm) | 10.5 | 0.62 | 9.9 | 11 | Aqua Regia Digestion | | Yb, Ytterbium (ppm) | 0.78 | 0.14 | 0.59 | 0.96 | Aqua Regia Digestion | | Zn, Zinc (wt.%) | 2.73 | 0.075 | 2.66 | 2.79 | Aqua Regia Digestion | | Zr, Zirconium (ppm) | 17.1 | 2.1 | 15.8 | 18.5 | Aqua Regia Digestion | | Ag, Silver (ppm) | 54.8 | 3.26 | 49.7 | 59.9 | Borate / Peroxide Fusion ICP | | Al, Aluminium (wt.%) | 5.95 | 0.12 | 5.81 | 6.08 | Borate / Peroxide Fusion ICP | | As, Arsenic (ppm) | 708 | 69 | 644 | 771 | Borate / Peroxide Fusion ICP | | B, Boron (ppm) | 106 | 15 | 79 | 133 | Borate / Peroxide Fusion ICP | | Ba, Barium (wt.%) | 0.357 | 0.019 | 0.342 | 0.372 | Borate / Peroxide Fusion ICP | | Be, Beryllium (ppm) | 2.7 | 0.56 | 2.16 | 3.24 | Borate / Peroxide Fusion ICP | | Bi, Bismuth (ppm) | 2.71 | 0.63 | 2.05 | 3.37 | Borate / Peroxide Fusion ICP | | Ca, Calcium (wt.%) | 0.474 | 0.06 | 0.43 | 0.518 | Borate / Peroxide Fusion ICP | | Cd, Cadmium (ppm) | 69 | 7 | 62 | 76 | Borate / Peroxide Fusion ICP | | Ce, Cerium (ppm) | 91 | 4.8 | 86 | 95 | Borate / Peroxide Fusion ICP | | Co, Cobalt (ppm) | 7.33 | 1.15 | 5.88 | 8.77 | Borate / Peroxide Fusion ICP | | Cr, Chromium (ppm) | 104 | 31 | 86 | 122 | Borate / Peroxide Fusion ICP | | Cs, Caesium (ppm) | 3.89 | 0.339 | 3.57 | 4.2 | Borate / Peroxide Fusion ICP | | Cu, Copper (ppm) | 112 | 20 | 98 | 126 | Borate / Peroxide Fusion ICP | | Dy, Dysprosium (ppm) | 5.3 | 0.333 | 4.8 | 5.79 | Borate / Peroxide Fusion ICP | | Er, Erbium (ppm) | 2.92 | 0.216 | 2.6 | 3.23 | Borate / Peroxide Fusion ICP | | Eu, Europium (ppm) | 2.13 | 0.172 | 1.91 | 2.34 | Borate / Peroxide Fusion ICP | | Fe, Iron (wt.%) | 5.46 | 0.217 | 5.3 | 5.62 | Borate / Peroxide Fusion ICP | | Ga, Gallium (ppm) | 18.1 | 1.9 | 16.5 | 19.8 | Borate / Peroxide Fusion ICP | | Gd, Gadolinium (ppm) | 6.48 | 0.5 | 5.61 | 7.34 | Borate / Peroxide Fusion ICP | | Ge, Germanium (ppm) | 3.26 | 0.75 | 2.18 | 4.34 | Borate / Peroxide Fusion ICP | | Hf, Hafnium (ppm) | 2.74 | 0.71 | 1.83 | 3.64 | Borate / Peroxide Fusion ICP | | Ho, Holmium (ppm) | 0.97 | 0.11 | 0.85 | 1.09 | Borate / Peroxide Fusion ICP | | In, Indium (ppm) | 0.71 | 0.07 | 0.58 | 0.83 | Borate / Peroxide Fusion ICP | | K, Potassium (wt.%) | 2.57 | 0.12 | 2.47 | 2.67 | Borate / Peroxide Fusion ICP | | La, Lanthanum (ppm) | 44.9 | 3.75 | 42.4 | 47.4 | Borate / Peroxide Fusion ICP | | Li, Lithium (ppm) | 22.3 | 2.04 | 19.9 | 24.7 | Borate / Peroxide Fusion ICP | | Lu, Lutetium (ppm) | 0.37 | 0.04 | 0.28 | 0.46 | Borate / Peroxide Fusion ICP | | Mg, Magnesium (wt.%) | 0.368 | 0.015 | 0.353 | 0.384 | Borate / Peroxide Fusion ICP | | Mn, Manganese (wt.%) | 0.341 | 0.012 | 0.328 | 0.353 | Borate / Peroxide Fusion ICP | | Mo, Molybdenum (ppm) | 6.97 | 2.49 | 3.65 | 10.28 | Borate / Peroxide Fusion ICP | | Nb, Niobium (ppm) | 10.3 | 2 | 8.7 | 11.9 | Borate / Peroxide Fusion ICP | | Nd, Neodymium (ppm) | 38.7 | 2.15 | 36 | 41.4 | Borate / Peroxide Fusion ICP | | Ni, Nickel (ppm) | 21.3 | 7.1 | 8.8 | 33.7 | Borate / Peroxide Fusion ICP | | P, Phosphorus (wt.%) | 0.045 | 0.004 | 0.038 | 0.053 | Borate / Peroxide Fusion ICP | | Pb, Lead (wt.%) | 1.68 | 0.069 | 1.61 | 1.74 | Borate / Peroxide Fusion ICP | | Pr, Praseodymium (ppm) | 10.5 | 0.64 | 9.6 | 11.3 | Borate / Peroxide Fusion ICP | | Rb, Rubidium (ppm) | 140 | 11 | 130 | 149 | Borate / Peroxide Fusion ICP | | S, Sulphur (wt.%) | 3.06 | 0.126 | 2.96 | 3.17 | Borate / Peroxide Fusion ICP | | Sb, Antimony (ppm) | 40.9 | 2.59 | 36.5 | 45.3 | Borate / Peroxide Fusion ICP | | Sc, Scandium (ppm) | 9.46 | 0.927 | 8.02 | 10.89 | Borate / Peroxide Fusion ICP | | Si, Silicon (wt.%) | 30.68 | 1.344 | 29.65 | 31.71 | Borate / Peroxide Fusion ICP | | Sm, Samarium (ppm) | 7.25 | 0.699 | 6.63 | 7.88 | Borate / Peroxide Fusion ICP | | Sr, Strontium (ppm) | 125 | 7 | 117 | 132 | Borate / Peroxide Fusion ICP | | Ta, Tantalum (ppm) | 0.92 | 0.12 | 0.61 | 1.23 | Borate / Peroxide Fusion ICP | | Tb, Terbium (ppm) | 0.92 | 0.09 | 0.77 | 1.06 | Borate / Peroxide Fusion ICP | | Th, Thorium (ppm) | 12.8 | 0.78 | 12.2 | 13.5 | Borate / Peroxide Fusion ICP | | Ti, Titanium (wt.%) | 0.276 | 0.011 | 0.265 | 0.287 | Borate / Peroxide Fusion ICP | | Tl, Thallium (ppm) | 5.47 | 0.393 | 4.93 | 6.02 | Borate / Peroxide Fusion ICP | | Tm, Thulium (ppm) | 0.4 | 0.04 | 0.31 | 0.49 | Borate / Peroxide Fusion ICP | | U, Uranium (ppm) | 5.26 | 0.384 | 4.68 | 5.85 | Borate / Peroxide Fusion ICP | | V, Vanadium (ppm) | 147 | 8 | 142 | 151 | Borate / Peroxide Fusion ICP | | W, Tungsten (ppm) | 3.37 | 0.59 | 2.42 | 4.32 | Borate / Peroxide Fusion ICP | | Y, Yttrium (ppm) | 29 | 3.4 | 26.1 | 31.9 | Borate / Peroxide Fusion ICP | | Yb, Ytterbium (ppm) | 2.69 | 0.143 | 2.4 | 2.98 | Borate / Peroxide Fusion ICP | | Zn, Zinc (wt.%) | 2.71 | 0.083 | 2.63 | 2.79 | Borate / Peroxide Fusion ICP | | Zr, Zirconium (ppm) | 96 | 13 | 75 | 117 | Borate / Peroxide Fusion ICP | | Al2O3, Aluminium(III) oxide (wt.%) | 11.14 | 0.292 | 10.96 | 11.32 | Borate Fusion XRF | | As, Arsenic (ppm) | 751 | 121 | 644 | 858 | Borate Fusion XRF | | BaO, Barium oxide (wt.%) | 0.393 | 0.025 | 0.376 | 0.409 | Borate Fusion XRF | | CaO, Calcium oxide (wt.%) | 0.665 | 0.021 | 0.65 | 0.68 | Borate Fusion XRF | | Cu, Copper (ppm) | 131 | 31 | 108 | 153 | Borate Fusion XRF | | Fe, Iron (wt.%) | 5.41 | 0.102 | 5.34 | 5.49 | Borate Fusion XRF | | K2O, Potassium oxide (wt.%) | 3.04 | 0.103 | 2.98 | 3.1 | Borate Fusion XRF | | MgO, Magnesium oxide (wt.%) | 0.636 | 0.033 | 0.609 | 0.662 | Borate Fusion XRF | | Mn, Manganese (wt.%) | 0.339 | 0.011 | 0.33 | 0.347 | Borate Fusion XRF | | Na2O, Sodium oxide (wt.%) | 0.158 | 0.039 | 0.109 | 0.207 | Borate Fusion XRF | | P2O5, Phosphorus(V) oxide (wt.%) | 0.1 | 0.009 | 0.093 | 0.108 | Borate Fusion XRF | | Pb, Lead (wt.%) | 1.72 | 0.071 | 1.68 | 1.76 | Borate Fusion XRF | | S, Sulphur (wt.%) | 3.1 | 0.12 | 3.01 | 3.19 | Borate Fusion XRF | | SiO2, Silicon dioxide (wt.%) | 64.01 | 0.934 | 63.41 | 64.62 | Borate Fusion XRF | | TiO2, Titanium dioxide (wt.%) | 0.463 | 0.012 | 0.45 | 0.477 | Borate Fusion XRF | | Zn, Zinc (wt.%) | 2.77 | 0.077 | 2.72 | 2.82 | Borate Fusion XRF | | C, Carbon (wt.%) | 1.14 | 0.05 | 1.12 | 1.17 | Infrared Combustion | | S, Sulphur (wt.%) | 3.14 | 0.103 | 3.08 | 3.2 | Infrared Combustion | | LOI1000, Loss On Ignition @1000°C (wt.%) | 5.22 | 0.179 | 5.08 | 5.36 | Thermogravimetry |
|
