OREAS 611b

OREAS 611b was prepared from a blend of gold-copper-silver 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.

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.

Analyte Certified Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Au, Gold (ppm) 14.38 0.869 14.07 14.70 Pb Fire Assay
Ag, Silver (ppm) 76.1 2.05 73.8 78.4 4-Acid Digestion
Cu, Copper (wt.%) 0.914 0.032 0.888 0.940 4-Acid Digestion
Au, Gold (ppm) 14.64 0.651 14.33 14.96 Aqua Regia Digestion (sample weights 10-50g)
S, Sulphur (wt.%) 2.73 0.080 2.66 2.81 Infrared Combustion
Al, Aluminium (wt.%) 6.38 0.247 6.20 6.56 4-Acid Digestion
As, Arsenic (ppm) 1928 66 1868 1987 4-Acid Digestion
Be, Beryllium (ppm) 2.42 0.141 2.30 2.54 4-Acid Digestion
Bi, Bismuth (ppm) 138 6 132 144 4-Acid Digestion
Ca, Calcium (wt.%) 0.825 0.030 0.803 0.847 4-Acid Digestion
Cd, Cadmium (ppm) 12.8 0.50 12.1 13.5 4-Acid Digestion
Ce, Cerium (ppm) 72 5.8 67 76 4-Acid Digestion
Co, Cobalt (ppm) 7.32 0.382 6.93 7.71 4-Acid Digestion
Cr, Chromium (ppm) 22.0 2.5 19.5 24.6 4-Acid Digestion
Cs, Caesium (ppm) 5.12 0.167 4.91 5.32 4-Acid Digestion
Dy, Dysprosium (ppm) 3.06 0.110 2.91 3.21 4-Acid Digestion
Er, Erbium (ppm) 1.01 0.049 0.94 1.08 4-Acid Digestion
Eu, Europium (ppm) 1.02 0.14 0.89 1.16 4-Acid Digestion
Fe, Iron (wt.%) 3.48 0.079 3.36 3.60 4-Acid Digestion
Ga, Gallium (ppm) 22.9 1.31 21.8 23.9 4-Acid Digestion
Gd, Gadolinium (ppm) 4.59 0.360 4.22 4.96 4-Acid Digestion
Ge, Germanium (ppm) 0.24 0.07 0.19 0.29 4-Acid Digestion
Hf, Hafnium (ppm) 5.33 0.231 5.06 5.60 4-Acid Digestion
Ho, Holmium (ppm) 0.44 0.038 0.39 0.48 4-Acid Digestion
In, Indium (ppm) 2.69 0.163 2.53 2.86 4-Acid Digestion
K, Potassium (wt.%) 2.39 0.138 2.30 2.48 4-Acid Digestion
La, Lanthanum (ppm) 34.8 4.8 32.2 37.5 4-Acid Digestion
Li, Lithium (ppm) 36.0 1.28 34.9 37.1 4-Acid Digestion
Lu, Lutetium (ppm) 0.092 0.007 0.079 0.105 4-Acid Digestion
Mg, Magnesium (wt.%) 0.101 0.007 0.094 0.108 4-Acid Digestion
Mn, Manganese (wt.%) 0.024 0.001 0.023 0.025 4-Acid Digestion
Mo, Molybdenum (ppm) 27.2 1.40 25.7 28.7 4-Acid Digestion
Na, Sodium (wt.%) 1.99 0.083 1.92 2.05 4-Acid Digestion
Nb, Niobium (ppm) 15.0 0.77 14.1 15.9 4-Acid Digestion
Nd, Neodymium (ppm) 31.2 3.06 28.8 33.5 4-Acid Digestion
Ni, Nickel (ppm) 10.0 0.55 9.4 10.6 4-Acid Digestion
P, Phosphorus (wt.%) 0.029 0.001 0.028 0.030 4-Acid Digestion
Pb, Lead (ppm) 970 32 936 1003 4-Acid Digestion
Pr, Praseodymium (ppm) 8.23 0.635 7.66 8.81 4-Acid Digestion
Rb, Rubidium (ppm) 109 5 105 114 4-Acid Digestion
Re, Rhenium (ppm) 0.013 0.002 0.010 0.016 4-Acid Digestion
S, Sulphur (wt.%) 2.67 0.085 2.58 2.76 4-Acid Digestion
Sb, Antimony (ppm) 345 16 333 357 4-Acid Digestion
Sc, Scandium (ppm) 3.66 0.41 3.34 3.99 4-Acid Digestion
Se, Selenium (ppm) 19.0 0.99 17.9 20.0 4-Acid Digestion
Sm, Samarium (ppm) 5.85 0.251 5.52 6.19 4-Acid Digestion
Sn, Tin (ppm) 15.3 0.84 14.5 16.1 4-Acid Digestion
Sr, Strontium (ppm) 201 16 193 209 4-Acid Digestion
Ta, Tantalum (ppm) 1.10 0.087 1.03 1.17 4-Acid Digestion
Tb, Terbium (ppm) 0.63 0.07 0.56 0.70 4-Acid Digestion
Te, Tellurium (ppm) 26.3 1.68 25.0 27.5 4-Acid Digestion
Th, Thorium (ppm) 11.5 0.86 10.8 12.2 4-Acid Digestion
Ti, Titanium (wt.%) 0.113 0.004 0.109 0.117 4-Acid Digestion
Tl, Thallium (ppm) 1.53 0.087 1.46 1.59 4-Acid Digestion
Tm, Thulium (ppm) 0.12 0.006 0.10 0.13 4-Acid Digestion
U, Uranium (ppm) 4.69 0.159 4.51 4.88 4-Acid Digestion
V, Vanadium (ppm) 12.4 0.79 11.8 13.0 4-Acid Digestion
W, Tungsten (ppm) 4.65 0.195 4.39 4.91 4-Acid Digestion
Y, Yttrium (ppm) 13.0 0.60 12.3 13.7 4-Acid Digestion
Yb, Ytterbium (ppm) 0.69 0.046 0.63 0.75 4-Acid Digestion
Zn, Zinc (ppm) 2803 137 2702 2905 4-Acid Digestion
Zr, Zirconium (ppm) 198 9 191 205 4-Acid Digestion
Ag, Silver (ppm) 75.6 2.09 73.9 77.4 Aqua Regia Digestion
Al, Aluminium (wt.%) 0.784 0.055 0.749 0.819 Aqua Regia Digestion
As, Arsenic (ppm) 1834 114 1776 1893 Aqua Regia Digestion
B, Boron (ppm) < 10.0 IND IND IND Aqua Regia Digestion
Be, Beryllium (ppm) 0.40 0.06 0.36 0.44 Aqua Regia Digestion
Bi, Bismuth (ppm) 139 8 134 144 Aqua Regia Digestion
Ca, Calcium (wt.%) 0.463 0.015 0.450 0.477 Aqua Regia Digestion
Cd, Cadmium (ppm) 12.6 0.41 12.3 13.0 Aqua Regia Digestion
Ce, Cerium (ppm) 40.0 4.8 37.1 42.9 Aqua Regia Digestion
Co, Cobalt (ppm) 7.02 0.332 6.74 7.30 Aqua Regia Digestion
Cr, Chromium (ppm) 22.5 1.24 21.0 24.0 Aqua Regia Digestion
Cs, Caesium (ppm) 1.18 0.097 1.10 1.26 Aqua Regia Digestion
Cu, Copper (wt.%) 0.908 0.038 0.885 0.931 Aqua Regia Digestion
Dy, Dysprosium (ppm) 1.62 0.109 1.40 1.84 Aqua Regia Digestion
Er, Erbium (ppm) 0.44 0.05 0.40 0.49 Aqua Regia Digestion
Eu, Europium (ppm) 0.50 0.07 0.42 0.58 Aqua Regia Digestion
Fe, Iron (wt.%) 3.21 0.138 3.12 3.30 Aqua Regia Digestion
Ga, Gallium (ppm) 7.34 0.603 6.83 7.85 Aqua Regia Digestion
Gd, Gadolinium (ppm) 2.84 0.48 2.43 3.26 Aqua Regia Digestion
Ge, Germanium (ppm) 0.21 0.07 0.16 0.26 Aqua Regia Digestion
Hf, Hafnium (ppm) 1.09 0.083 1.02 1.15 Aqua Regia Digestion
Hg, Mercury (ppm) 0.82 0.047 0.76 0.87 Aqua Regia Digestion
Ho, Holmium (ppm) 0.20 0.018 0.19 0.22 Aqua Regia Digestion
In, Indium (ppm) 2.63 0.135 2.48 2.78 Aqua Regia Digestion
K, Potassium (wt.%) 0.215 0.018 0.200 0.230 Aqua Regia Digestion
La, Lanthanum (ppm) 19.2 1.65 17.9 20.5 Aqua Regia Digestion
Li, Lithium (ppm) 15.0 0.96 14.4 15.6 Aqua Regia Digestion
Lu, Lutetium (ppm) 0.034 0.005 0.026 0.042 Aqua Regia Digestion
Mg, Magnesium (wt.%) 0.067 0.005 0.065 0.069 Aqua Regia Digestion
Mn, Manganese (wt.%) 0.021 0.001 0.020 0.021 Aqua Regia Digestion
Mo, Molybdenum (ppm) 26.1 1.47 24.8 27.3 Aqua Regia Digestion
Na, Sodium (wt.%) 0.059 0.004 0.053 0.066 Aqua Regia Digestion
Nb, Niobium (ppm) 0.83 0.15 0.70 0.96 Aqua Regia Digestion
Nd, Neodymium (ppm) 17.3 3.2 14.5 20.1 Aqua Regia Digestion
Ni, Nickel (ppm) 9.81 0.464 9.35 10.26 Aqua Regia Digestion
P, Phosphorus (wt.%) 0.018 0.001 0.018 0.019 Aqua Regia Digestion
Pb, Lead (ppm) 906 43 882 930 Aqua Regia Digestion
Pr, Praseodymium (ppm) 4.42 0.62 3.75 5.09 Aqua Regia Digestion
Rb, Rubidium (ppm) 12.5 1.13 11.6 13.4 Aqua Regia Digestion
Re, Rhenium (ppm) 0.013 0.001 0.011 0.015 Aqua Regia Digestion
S, Sulphur (wt.%) 2.37 0.122 2.30 2.44 Aqua Regia Digestion
Sb, Antimony (ppm) 281 28 268 294 Aqua Regia Digestion
Sc, Scandium (ppm) 1.27 0.17 1.13 1.42 Aqua Regia Digestion
Se, Selenium (ppm) 19.1 1.09 18.0 20.2 Aqua Regia Digestion
Sm, Samarium (ppm) 3.18 0.43 2.78 3.58 Aqua Regia Digestion
Sn, Tin (ppm) 13.2 0.65 12.7 13.8 Aqua Regia Digestion
Sr, Strontium (ppm) 27.1 2.45 25.4 28.8 Aqua Regia Digestion
Ta, Tantalum (ppm) < 0.010 IND IND IND Aqua Regia Digestion
Tb, Terbium (ppm) 0.35 0.05 0.29 0.40 Aqua Regia Digestion
Te, Tellurium (ppm) 27.1 1.67 25.9 28.4 Aqua Regia Digestion
Th, Thorium (ppm) 8.09 0.692 7.59 8.59 Aqua Regia Digestion
Ti, Titanium (wt.%) 0.012 0.002 0.011 0.013 Aqua Regia Digestion
Tl, Thallium (ppm) 1.06 0.055 1.01 1.11 Aqua Regia Digestion
U, Uranium (ppm) 2.29 0.158 2.18 2.40 Aqua Regia Digestion
V, Vanadium (ppm) 6.99 0.373 6.37 7.60 Aqua Regia Digestion
W, Tungsten (ppm) 2.53 0.174 2.37 2.70 Aqua Regia Digestion
Y, Yttrium (ppm) 6.20 0.513 5.84 6.56 Aqua Regia Digestion
Yb, Ytterbium (ppm) 0.25 0.03 0.21 0.29 Aqua Regia Digestion
Zn, Zinc (ppm) 2752 140 2668 2836 Aqua Regia Digestion
Zr, Zirconium (ppm) 37.1 3.07 34.8 39.3 Aqua Regia Digestion
S-(Sulphide), Sulphur as S2- (wt.%) 2.06 0.26 1.89 2.23 Alkaline Leach
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