Specifications
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CRM State:
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Matrix:
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Mineralisation:
OREAS 603b
OREAS 603b was prepared from a blend of silver-copper-gold bearing ores from Evolution Mining’s Mount Carlton Operation in Queensland, Australia and argillic rhyodacite waste rock sourced from a quarry east of Melbourne, Australia. Small quantities of copper concentrate (Sepon, Laos) and copper-gold concentrate (Mount Carlton) were added to help achieve the desired copper and gold 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 advanced argillic altered rhyodacite containing sulphur-salts.
Twenty five commercial analytical laboratories participated in the program to certify the elements reported in Table 1. The following methods were employed:
- Gold via 25-50g fire assay with AAS finish (14 laboratories) and ICP-OES (10 laboratories) finish;
- Gold via 10-40g aqua regia digestion with ICP-MS finish (10 laboratories) and AAS (2 laboratories) finish;
- Sulphur by infra-red combustion analysis (19 laboratories);
- 4-Acid digestion for full elemental suite ICP-OES/MS finish (up to 22 laboratories depending on the element).
- Aqua regia digestion for full elemental suite ICP-OES finish (up to 22 laboratories depending on the element) and AAS finish (1 laboratory);
- Gold by instrumental neutron activation analysis (INAA) on 20 x 85mg subsamples to confirm homogeneity (ANSTO, Lucas Heights).
| Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits High | Method |
|---|---|---|---|---|---|
| Ag, Silver (ppm) | 301 | 10 | 296 | 305 | 4-Acid Digestion |
| Cu, Copper (wt.%) | 0.973 | 0.023 | 0.963 | 0.983 | 4-Acid Digestion |
| Au, Gold (ppm) | 5.21 | 0.209 | 5.12 | 5.29 | Pb Fire Assay |
| Ag, Silver (ppm) | 297 | 8 | 293 | 301 | Pb Fire Assay |
| Au, Gold (ppm) | 5.19 | 0.297 | 4.97 | 5.40 | Aqua Regia Digestion (sample weights 10-50g) |
| S, Sulphur (wt.%) | 4.57 | 0.136 | 4.51 | 4.63 | Infrared Combustion |
| Al, Aluminium (wt.%) | 6.48 | 0.286 | 6.36 | 6.61 | 4-Acid Digestion |
| As, Arsenic (ppm) | 2433 | 101 | 2383 | 2483 | 4-Acid Digestion |
| Be, Beryllium (ppm) | 1.57 | 0.21 | 1.46 | 1.67 | 4-Acid Digestion |
| Bi, Bismuth (ppm) | 154 | 10 | 150 | 159 | 4-Acid Digestion |
| Ca, Calcium (wt.%) | 0.618 | 0.027 | 0.607 | 0.630 | 4-Acid Digestion |
| Cd, Cadmium (ppm) | 12.3 | 0.81 | 12.0 | 12.7 | 4-Acid Digestion |
| Ce, Cerium (ppm) | 47.9 | 3.76 | 45.6 | 50.3 | 4-Acid Digestion |
| Co, Cobalt (ppm) | 9.38 | 0.768 | 9.01 | 9.76 | 4-Acid Digestion |
| Cr, Chromium (ppm) | 26.2 | 4.3 | 24.2 | 28.1 | 4-Acid Digestion |
| Cs, Caesium (ppm) | 3.41 | 0.203 | 3.31 | 3.52 | 4-Acid Digestion |
| Dy, Dysprosium (ppm) | 1.95 | 0.118 | 1.84 | 2.06 | 4-Acid Digestion |
| Er, Erbium (ppm) | 0.71 | 0.08 | 0.64 | 0.77 | 4-Acid Digestion |
| Eu, Europium (ppm) | 0.80 | 0.12 | 0.68 | 0.93 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 3.67 | 0.120 | 3.62 | 3.72 | 4-Acid Digestion |
| Ga, Gallium (ppm) | 27.2 | 1.90 | 26.3 | 28.1 | 4-Acid Digestion |
| Gd, Gadolinium (ppm) | 3.09 | 0.197 | 2.87 | 3.30 | 4-Acid Digestion |
| Ge, Germanium (ppm) | 0.21 | 0.04 | 0.16 | 0.25 | 4-Acid Digestion |
| Hf, Hafnium (ppm) | 4.17 | 0.279 | 4.02 | 4.32 | 4-Acid Digestion |
| Ho, Holmium (ppm) | 0.29 | 0.016 | 0.27 | 0.30 | 4-Acid Digestion |
| In, Indium (ppm) | 3.61 | 0.186 | 3.52 | 3.70 | 4-Acid Digestion |
| K, Potassium (wt.%) | 1.96 | 0.049 | 1.94 | 1.98 | 4-Acid Digestion |
| La, Lanthanum (ppm) | 22.1 | 3.9 | 20.0 | 24.3 | 4-Acid Digestion |
| Li, Lithium (ppm) | 22.4 | 1.68 | 21.7 | 23.2 | 4-Acid Digestion |
| Lu, Lutetium (ppb) | 67.2 | 9.4 | 53.0 | 81.3 | 4-Acid Digestion |
| Mg, Magnesium (ppm) | 730 | 61 | 706 | 754 | 4-Acid Digestion |
| Mn, Manganese (ppm) | 162 | 11 | 157 | 167 | 4-Acid Digestion |
| Mo, Molybdenum (ppm) | 10.0 | 0.66 | 9.7 | 10.3 | 4-Acid Digestion |
| Na, Sodium (wt.%) | 1.38 | 0.064 | 1.36 | 1.41 | 4-Acid Digestion |
| Nb, Niobium (ppm) | 11.1 | 0.71 | 10.7 | 11.4 | 4-Acid Digestion |
| Nd, Neodymium (ppm) | 22.3 | 2.10 | 20.0 | 24.5 | 4-Acid Digestion |
| Ni, Nickel (ppm) | 11.9 | 1.18 | 11.3 | 12.5 | 4-Acid Digestion |
| P, Phosphorus (ppm) | 386 | 28 | 373 | 400 | 4-Acid Digestion |
| Pb, Lead (ppm) | 862 | 49 | 841 | 883 | 4-Acid Digestion |
| Pr, Praseodymium (ppm) | 6.06 | 0.73 | 5.27 | 6.85 | 4-Acid Digestion |
| Rb, Rubidium (ppm) | 70 | 3.9 | 68 | 72 | 4-Acid Digestion |
| S, Sulphur (wt.%) | 4.54 | 0.177 | 4.46 | 4.62 | 4-Acid Digestion |
| Sb, Antimony (ppm) | 307 | 17 | 299 | 314 | 4-Acid Digestion |
| Sc, Scandium (ppm) | 4.10 | 0.342 | 3.92 | 4.29 | 4-Acid Digestion |
| Se, Selenium (ppm) | 41.1 | 3.65 | 39.3 | 42.9 | 4-Acid Digestion |
| Sm, Samarium (ppm) | 4.21 | 0.375 | 3.82 | 4.59 | 4-Acid Digestion |
| Sn, Tin (ppm) | 14.4 | 0.98 | 14.0 | 14.9 | 4-Acid Digestion |
| Sr, Strontium (ppm) | 323 | 29 | 309 | 336 | 4-Acid Digestion |
| Ta, Tantalum (ppm) | 0.88 | 0.056 | 0.84 | 0.92 | 4-Acid Digestion |
| Tb, Terbium (ppm) | 0.41 | 0.06 | 0.38 | 0.44 | 4-Acid Digestion |
| Te, Tellurium (ppm) | 36.5 | 3.18 | 35.0 | 38.1 | 4-Acid Digestion |
| Th, Thorium (ppm) | 8.87 | 1.47 | 8.08 | 9.66 | 4-Acid Digestion |
| Ti, Titanium (wt.%) | 0.150 | 0.008 | 0.146 | 0.153 | 4-Acid Digestion |
| Tl, Thallium (ppm) | 5.52 | 0.468 | 5.28 | 5.75 | 4-Acid Digestion |
| U, Uranium (ppm) | 3.82 | 0.288 | 3.67 | 3.97 | 4-Acid Digestion |
| V, Vanadium (ppm) | 25.9 | 1.35 | 25.3 | 26.5 | 4-Acid Digestion |
| W, Tungsten (ppm) | 12.8 | 0.70 | 12.5 | 13.2 | 4-Acid Digestion |
| Y, Yttrium (ppm) | 8.57 | 0.486 | 8.36 | 8.78 | 4-Acid Digestion |
| Yb, Ytterbium (ppm) | 0.51 | 0.08 | 0.41 | 0.61 | 4-Acid Digestion |
| Zn, Zinc (wt.%) | 0.201 | 0.005 | 0.200 | 0.203 | 4-Acid Digestion |
| Zr, Zirconium (ppm) | 146 | 8 | 143 | 150 | 4-Acid Digestion |
| Ag, Silver (ppm) | 300 | 9 | 296 | 305 | Aqua Regia Digestion |
| Al, Aluminium (wt.%) | 0.758 | 0.042 | 0.738 | 0.778 | Aqua Regia Digestion |
| As, Arsenic (ppm) | 2411 | 128 | 2355 | 2468 | Aqua Regia Digestion |
| Be, Beryllium (ppm) | 0.31 | 0.024 | 0.30 | 0.32 | Aqua Regia Digestion |
| Bi, Bismuth (ppm) | 156 | 7 | 153 | 160 | Aqua Regia Digestion |
| Ca, Calcium (wt.%) | 0.396 | 0.021 | 0.387 | 0.405 | Aqua Regia Digestion |
| Cd, Cadmium (ppm) | 12.4 | 0.79 | 12.0 | 12.8 | Aqua Regia Digestion |
| Ce, Cerium (ppm) | 27.2 | 1.07 | 26.6 | 27.9 | Aqua Regia Digestion |
| Co, Cobalt (ppm) | 9.05 | 0.402 | 8.85 | 9.24 | Aqua Regia Digestion |
| Cr, Chromium (ppm) | 26.1 | 2.7 | 24.9 | 27.4 | Aqua Regia Digestion |
| Cs, Caesium (ppm) | 0.79 | 0.030 | 0.78 | 0.81 | Aqua Regia Digestion |
| Cu, Copper (wt.%) | 0.985 | 0.015 | 0.979 | 0.990 | Aqua Regia Digestion |
| Fe, Iron (wt.%) | 3.47 | 0.177 | 3.39 | 3.55 | Aqua Regia Digestion |
| Ga, Gallium (ppm) | 6.27 | 0.509 | 5.99 | 6.56 | Aqua Regia Digestion |
| Ge, Germanium (ppm) | 0.19 | 0.05 | 0.15 | 0.24 | Aqua Regia Digestion |
| Hf, Hafnium (ppm) | 0.90 | 0.085 | 0.85 | 0.95 | Aqua Regia Digestion |
| Hg, Mercury (ppm) | 1.14 | 0.075 | 1.09 | 1.18 | Aqua Regia Digestion |
| In, Indium (ppm) | 3.53 | 0.144 | 3.46 | 3.61 | Aqua Regia Digestion |
| K, Potassium (wt.%) | 0.211 | 0.012 | 0.206 | 0.216 | Aqua Regia Digestion |
| La, Lanthanum (ppm) | 12.9 | 0.87 | 12.5 | 13.3 | Aqua Regia Digestion |
| Li, Lithium (ppm) | 6.73 | 0.75 | 6.33 | 7.13 | Aqua Regia Digestion |
| Mg, Magnesium (ppm) | 304 | 13 | 297 | 312 | Aqua Regia Digestion |
| Mn, Manganese (ppm) | 142 | 8 | 139 | 146 | Aqua Regia Digestion |
| Mo, Molybdenum (ppm) | 9.63 | 0.333 | 9.48 | 9.78 | Aqua Regia Digestion |
| Na, Sodium (wt.%) | 0.053 | 0.007 | 0.050 | 0.057 | Aqua Regia Digestion |
| Ni, Nickel (ppm) | 11.4 | 0.92 | 10.9 | 11.8 | Aqua Regia Digestion |
| P, Phosphorus (ppm) | 146 | 10 | 141 | 151 | Aqua Regia Digestion |
| Pb, Lead (ppm) | 634 | 33 | 619 | 649 | Aqua Regia Digestion |
| Rb, Rubidium (ppm) | 8.58 | 0.849 | 8.08 | 9.09 | Aqua Regia Digestion |
| Re, Rhenium (ppb) | 3.76 | 0.64 | 3.54 | 3.98 | Aqua Regia Digestion |
| S, Sulphur (wt.%) | 3.50 | 0.166 | 3.42 | 3.58 | Aqua Regia Digestion |
| Sb, Antimony (ppm) | 259 | 26 | 248 | 271 | Aqua Regia Digestion |
| Sc, Scandium (ppm) | 1.00 | 0.11 | 0.95 | 1.06 | Aqua Regia Digestion |
| Se, Selenium (ppm) | 41.0 | 2.79 | 39.4 | 42.6 | Aqua Regia Digestion |
| Sn, Tin (ppm) | 12.9 | 0.57 | 12.6 | 13.2 | Aqua Regia Digestion |
| Sr, Strontium (ppm) | 40.5 | 5.1 | 38.1 | 43.0 | Aqua Regia Digestion |
| Tb, Terbium (ppm) | 0.23 | 0.04 | 0.18 | 0.28 | Aqua Regia Digestion |
| Te, Tellurium (ppm) | 38.5 | 1.48 | 37.8 | 39.3 | Aqua Regia Digestion |
| Th, Thorium (ppm) | 4.74 | 0.58 | 4.40 | 5.08 | Aqua Regia Digestion |
| Ti, Titanium (ppm) | 149 | 12 | 141 | 157 | Aqua Regia Digestion |
| Tl, Thallium (ppm) | 5.33 | 0.317 | 5.15 | 5.50 | Aqua Regia Digestion |
| U, Uranium (ppm) | 1.71 | 0.138 | 1.63 | 1.79 | Aqua Regia Digestion |
| V, Vanadium (ppm) | 8.78 | 0.853 | 8.39 | 9.17 | Aqua Regia Digestion |
| W, Tungsten (ppm) | 4.56 | 0.288 | 4.40 | 4.72 | Aqua Regia Digestion |
| Y, Yttrium (ppm) | 3.96 | 0.381 | 3.77 | 4.15 | Aqua Regia Digestion |
| Yb, Ytterbium (ppm) | 0.17 | 0.03 | 0.15 | 0.20 | Aqua Regia Digestion |
| Zn, Zinc (wt.%) | 0.199 | 0.007 | 0.196 | 0.202 | Aqua Regia Digestion |
| Zr, Zirconium (ppm) | 30.0 | 5.7 | 27.4 | 32.5 | Aqua Regia Digestion |
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Certificate DataPack SDS NRAM (412 KB)Specifications
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CRM State:
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Matrix:
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Mineralisation:
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CRM Group(s):