| Description: OREAS 601c was prepared from a blend of silver-copper-gold bearing ores from Evolution Mining’s Mount Carlton Operation in Queensland, Australia and barren rhyodacite rock sourced from a quarry east of Melbourne, Australia. A small quantity of copper-gold-silver concentrate (Mount Carlton) was added to help achieve the desired grades. The mineralisation assemblage at Mount Carlton consists of pyrite, enargite/tennantite, tetrahedrite, digenite, covellite, sphalerite, galena, alunite, dickite, kaolinite and vuggy silica, hosted in argillic altered rhyodacite containing sulphur-salts. The certification program includes: - Au by fire assay with AAS or ICP finish
- Au by aqua regia digestion with AAS or ICP finish
- Full ICP-OES and MS elemental suites by 4-acid digestion
- Full ICP-OES and MS elemental suites by aqua regia digestion
- Total S by Infrared combustion furnace
Indicative values for Sulphate Sulphur and Sulphide Sulphur (among others) are also available. Download Certificate OREAS601c Download DataPack OREAS601c | Analyte | Certified Value | 1SD | 95% CI Low | 95% CI High | Method |
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| Ag, Silver (ppm) | 50.3 | 2.31 | 48.8 | 51.9 | 4-Acid Digestion | | Al, Aluminium (wt.%) | 7.06 | 0.272 | 6.81 | 7.32 | 4-Acid Digestion | | As, Arsenic (wt.%) | 0.039 | 0.002 | 0.037 | 0.04 | 4-Acid Digestion | | Be, Beryllium (ppm) | 2.46 | 0.157 | 2.26 | 2.67 | 4-Acid Digestion | | Bi, Bismuth (ppm) | 21.1 | 1.91 | 20 | 22.1 | 4-Acid Digestion | | Ca, Calcium (wt.%) | 0.953 | 0.039 | 0.922 | 0.985 | 4-Acid Digestion | | Cd, Cadmium (ppm) | 2.77 | 0.275 | 2.6 | 2.93 | 4-Acid Digestion | | Ce, Cerium (ppm) | 75 | 3.7 | 72 | 78 | 4-Acid Digestion | | Co, Cobalt (ppm) | 4.99 | 0.272 | 4.6 | 5.38 | 4-Acid Digestion | | Cr, Chromium (ppm) | 17.5 | 2.4 | 15.9 | 19 | 4-Acid Digestion | | Cs, Caesium (ppm) | 5.17 | 0.343 | 4.91 | 5.43 | 4-Acid Digestion | | Cu, Copper (wt.%) | 0.116 | 0.005 | 0.111 | 0.12 | 4-Acid Digestion | | Dy, Dysprosium (ppm) | 2.66 | 0.246 | 2.43 | 2.89 | 4-Acid Digestion | | Er, Erbium (ppm) | 0.78 | 0.09 | 0.68 | 0.89 | 4-Acid Digestion | | Eu, Europium (ppm) | 1.08 | 0.096 | 1 | 1.17 | 4-Acid Digestion | | Fe, Iron (wt.%) | 2.41 | 0.1 | 2.32 | 2.5 | 4-Acid Digestion | | Ga, Gallium (ppm) | 23.5 | 1.61 | 22.3 | 24.7 | 4-Acid Digestion | | Gd, Gadolinium (ppm) | 4.65 | 0.213 | 4.45 | 4.86 | 4-Acid Digestion | | Ge, Germanium (ppm) | 0.18 | 0.06 | 0.12 | 0.24 | 4-Acid Digestion | | Hf, Hafnium (ppm) | 4.93 | 0.28 | 4.69 | 5.16 | 4-Acid Digestion | | Ho, Holmium (ppm) | 0.38 | 0.029 | 0.35 | 0.4 | 4-Acid Digestion | | In, Indium (ppm) | 0.56 | 0.05 | 0.53 | 0.59 | 4-Acid Digestion | | K, Potassium (wt.%) | 2.72 | 0.139 | 2.64 | 2.81 | 4-Acid Digestion | | La, Lanthanum (ppm) | 37.1 | 2.59 | 35 | 39.2 | 4-Acid Digestion | | Li, Lithium (ppm) | 26.7 | 1.41 | 25.2 | 28.1 | 4-Acid Digestion | | Lu, Lutetium (ppm) | 0.077 | 0.01 | 0.062 | 0.092 | 4-Acid Digestion | | Mg, Magnesium (wt.%) | 0.169 | 0.011 | 0.16 | 0.178 | 4-Acid Digestion | | Mn, Manganese (wt.%) | 0.023 | 0.001 | 0.022 | 0.024 | 4-Acid Digestion | | Mo, Molybdenum (ppm) | 3.66 | 0.249 | 3.46 | 3.85 | 4-Acid Digestion | | Na, Sodium (wt.%) | 1.94 | 0.091 | 1.88 | 2.01 | 4-Acid Digestion | | Nb, Niobium (ppm) | 14.7 | 1.17 | 13.9 | 15.6 | 4-Acid Digestion | | Nd, Neodymium (ppm) | 29.8 | 2.57 | 27.8 | 31.9 | 4-Acid Digestion | | Ni, Nickel (ppm) | 6.83 | 0.85 | 6.19 | 7.47 | 4-Acid Digestion | | P, Phosphorus (wt.%) | 0.039 | 0.003 | 0.038 | 0.041 | 4-Acid Digestion | | Pb, Lead (ppm) | 328 | 18 | 315 | 341 | 4-Acid Digestion | | Pr, Praseodymium (ppm) | 8.41 | 0.486 | 7.87 | 8.95 | 4-Acid Digestion | | Rb, Rubidium (ppm) | 115 | 13 | 107 | 122 | 4-Acid Digestion | | Re, Rhenium (ppm) | 0.002 | IND | IND | IND | 4-Acid Digestion | | S, Sulphur (wt.%) | 1.58 | 0.055 | 1.53 | 1.64 | 4-Acid Digestion | | Sb, Antimony (ppm) | 37.2 | 3.7 | 35 | 39.4 | 4-Acid Digestion | | Sc, Scandium (ppm) | 4.01 | 0.206 | 3.81 | 4.22 | 4-Acid Digestion | | Se, Selenium (ppm) | 8.75 | 0.834 | 7.9 | 9.59 | 4-Acid Digestion | | Sm, Samarium (ppm) | 5.76 | 0.59 | 5.32 | 6.21 | 4-Acid Digestion | | Sn, Tin (ppm) | 4.23 | 0.384 | 3.98 | 4.49 | 4-Acid Digestion | | Sr, Strontium (ppm) | 230 | 11 | 222 | 238 | 4-Acid Digestion | | Ta, Tantalum (ppm) | 1.11 | 0.14 | 1.02 | 1.21 | 4-Acid Digestion | | Tb, Terbium (ppm) | 0.55 | 0.054 | 0.49 | 0.61 | 4-Acid Digestion | | Te, Tellurium (ppm) | 7.5 | 0.82 | 6.98 | 8.03 | 4-Acid Digestion | | Th, Thorium (ppm) | 12.4 | 1.23 | 11.6 | 13.3 | 4-Acid Digestion | | Ti, Titanium (wt.%) | 0.135 | 0.007 | 0.128 | 0.142 | 4-Acid Digestion | | Tl, Thallium (ppm) | 1.75 | 0.119 | 1.66 | 1.84 | 4-Acid Digestion | | Tm, Thulium (ppm) | 0.094 | 0.008 | 0.084 | 0.103 | 4-Acid Digestion | | U, Uranium (ppm) | 4.4 | 0.307 | 4.12 | 4.67 | 4-Acid Digestion | | V, Vanadium (ppm) | 15.5 | 1.13 | 14.6 | 16.4 | 4-Acid Digestion | | W, Tungsten (ppm) | 4.67 | 0.356 | 4.39 | 4.95 | 4-Acid Digestion | | Y, Yttrium (ppm) | 11.5 | 0.66 | 11 | 12 | 4-Acid Digestion | | Yb, Ytterbium (ppm) | 0.54 | 0.06 | 0.49 | 0.58 | 4-Acid Digestion | | Zn, Zinc (ppm) | 425 | 16 | 411 | 439 | 4-Acid Digestion | | Zr, Zirconium (ppm) | 178 | 9 | 171 | 185 | 4-Acid Digestion | | Ag, Silver (ppm) | 50.4 | 1.39 | 49.2 | 51.6 | Aqua Regia Digestion | | Al, Aluminium (wt.%) | 0.663 | 0.071 | 0.627 | 0.699 | Aqua Regia Digestion | | As, Arsenic (wt.%) | 0.038 | 0.002 | 0.037 | 0.039 | Aqua Regia Digestion | | B, Boron (ppm) | 10 | IND | IND | IND | Aqua Regia Digestion | | Be, Beryllium (ppm) | 0.59 | 0.08 | 0.52 | 0.66 | Aqua Regia Digestion | | Bi, Bismuth (ppm) | 21.3 | 0.97 | 20.3 | 22.4 | Aqua Regia Digestion | | Ca, Calcium (wt.%) | 0.779 | 0.039 | 0.755 | 0.804 | Aqua Regia Digestion | | Cd, Cadmium (ppm) | 2.7 | 0.2 | 2.57 | 2.83 | Aqua Regia Digestion | | Ce, Cerium (ppm) | 34.7 | 4.5 | 32.1 | 37.4 | Aqua Regia Digestion | | Co, Cobalt (ppm) | 4.27 | 0.167 | 4.09 | 4.46 | Aqua Regia Digestion | | Cr, Chromium (ppm) | 14.7 | 1.39 | 13.7 | 15.8 | Aqua Regia Digestion | | Cs, Caesium (ppm) | 1.32 | 0.13 | 1.24 | 1.41 | Aqua Regia Digestion | | Cu, Copper (wt.%) | 0.116 | 0.003 | 0.113 | 0.119 | Aqua Regia Digestion | | Dy, Dysprosium (ppm) | 1.36 | 0.122 | 1.23 | 1.49 | Aqua Regia Digestion | | Er, Erbium (ppm) | 0.37 | 0.037 | 0.32 | 0.41 | Aqua Regia Digestion | | Eu, Europium (ppm) | 0.51 | 0.07 | 0.43 | 0.59 | Aqua Regia Digestion | | Fe, Iron (wt.%) | 1.84 | 0.077 | 1.78 | 1.89 | Aqua Regia Digestion | | Ga, Gallium (ppm) | 3.86 | 0.57 | 3.51 | 4.22 | Aqua Regia Digestion | | Gd, Gadolinium (ppm) | 2.38 | 0.176 | 2.19 | 2.56 | Aqua Regia Digestion | | Ge, Germanium (ppm) | 0.084 | 0.015 | 0.064 | 0.103 | Aqua Regia Digestion | | Hf, Hafnium (ppm) | 0.97 | 0.13 | 0.89 | 1.06 | Aqua Regia Digestion | | Hg, Mercury (ppm) | 0.22 | 0.016 | 0.2 | 0.24 | Aqua Regia Digestion | | Ho, Holmium (ppm) | 0.18 | 0.018 | 0.16 | 0.2 | Aqua Regia Digestion | | In, Indium (ppm) | 0.5 | 0.022 | 0.47 | 0.52 | Aqua Regia Digestion | | K, Potassium (wt.%) | 0.254 | 0.033 | 0.237 | 0.271 | Aqua Regia Digestion | | La, Lanthanum (ppm) | 17.3 | 2.1 | 15.9 | 18.6 | Aqua Regia Digestion | | Li, Lithium (ppm) | 7.56 | 0.623 | 7.03 | 8.09 | Aqua Regia Digestion | | Lu, Lutetium (ppm) | 0.028 | 0.003 | 0.022 | 0.035 | Aqua Regia Digestion | | Mg, Magnesium (wt.%) | 0.084 | 0.005 | 0.082 | 0.087 | Aqua Regia Digestion | | Mn, Manganese (wt.%) | 0.021 | 0.001 | 0.021 | 0.022 | Aqua Regia Digestion | | Mo, Molybdenum (ppm) | 3.35 | 0.231 | 3.18 | 3.53 | Aqua Regia Digestion | | Na, Sodium (wt.%) | 0.053 | 0.009 | 0.049 | 0.057 | Aqua Regia Digestion | | Nd, Neodymium (ppm) | 15.3 | 3.1 | 12.6 | 18 | Aqua Regia Digestion | | Ni, Nickel (ppm) | 6 | 0.397 | 5.67 | 6.34 | Aqua Regia Digestion | | P, Phosphorus (wt.%) | 0.024 | 0.001 | 0.024 | 0.025 | Aqua Regia Digestion | | Pb, Lead (ppm) | 248 | 10 | 241 | 255 | Aqua Regia Digestion | | Pr, Praseodymium (ppm) | 3.97 | 0.71 | 3.28 | 4.67 | Aqua Regia Digestion | | Rb, Rubidium (ppm) | 12.4 | 1.5 | 11.5 | 13.4 | Aqua Regia Digestion | | Re, Rhenium (ppm) | 0.001 | IND | IND | IND | Aqua Regia Digestion | | S, Sulphur (wt.%) | 0.909 | 0.053 | 0.874 | 0.944 | Aqua Regia Digestion | | Sb, Antimony (ppm) | 29.7 | 3.3 | 27.8 | 31.6 | Aqua Regia Digestion | | Sc, Scandium (ppm) | 1.03 | 0.17 | 0.9 | 1.15 | Aqua Regia Digestion | | Se, Selenium (ppm) | 8.02 | 0.604 | 7.3 | 8.74 | Aqua Regia Digestion | | Sm, Samarium (ppm) | 2.97 | 0.45 | 2.47 | 3.47 | Aqua Regia Digestion | | Sn, Tin (ppm) | 1.59 | 0.16 | 1.46 | 1.71 | Aqua Regia Digestion | | Sr, Strontium (ppm) | 36.3 | 2.6 | 34.7 | 37.8 | Aqua Regia Digestion | | Ta, Tantalum (ppm) | 0.05 | IND | IND | IND | Aqua Regia Digestion | | Tb, Terbium (ppm) | 0.3 | 0.013 | 0.28 | 0.33 | Aqua Regia Digestion | | Te, Tellurium (ppm) | 7.22 | 0.694 | 6.78 | 7.66 | Aqua Regia Digestion | | Th, Thorium (ppm) | 6.13 | 0.384 | 5.82 | 6.44 | Aqua Regia Digestion | | Ti, Titanium (wt.%) | 0.01 | 0.002 | 0.009 | 0.011 | Aqua Regia Digestion | | Tl, Thallium (ppm) | 1.2 | 0.072 | 1.14 | 1.25 | Aqua Regia Digestion | | U, Uranium (ppm) | 2.04 | 0.159 | 1.92 | 2.16 | Aqua Regia Digestion | | V, Vanadium (ppm) | 4.75 | 1.06 | 4.28 | 5.21 | Aqua Regia Digestion | | W, Tungsten (ppm) | 1.16 | 0.16 | 1.04 | 1.29 | Aqua Regia Digestion | | Y, Yttrium (ppm) | 5.1 | 0.455 | 4.82 | 5.38 | Aqua Regia Digestion | | Yb, Ytterbium (ppm) | 0.23 | 0.07 | 0.16 | 0.3 | Aqua Regia Digestion | | Zn, Zinc (ppm) | 381 | 12 | 370 | 391 | Aqua Regia Digestion | | Zr, Zirconium (ppm) | 33.5 | 6.6 | 30.1 | 37 | Aqua Regia Digestion | | Au, Gold (ppm) | 0.993 | 0.04 | 0.972 | 1.014 | Aqua Regia Digestion (sample weights 10-50g) | | S, Sulphur (wt.%) | 1.59 | 0.065 | 1.54 | 1.64 | Infrared Combustion | | Au, Gold (ppm) | 0.996 | 0.048 | 0.976 | 1.017 | Pb Fire Assay |
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