OREAS 908

OREAS 908 was prepared from a blend of copper oxide ore and barren weathered rhyodacite. The ore was sourced from a copper rich zone within MMG’s VMS Gossan Hill deposit at Golden Grove and the rhyodacite was obtained from a quarry approximately 30km east of Melbourne, Australia. The Gossan Hill deposit is located 338km NNE of Perth in the Murchison Province of the Archaen Yilgarn Craton in Western Australia. The ore deposit is hosted within and underlain by a layered rhyodacitic volcanoclastic succession. The pre-oxidation mineralisation assemblage consisted of sphalerite, chalcopyrite and lesser galena with a gangue of pyrite, pyrrhotite and magnetite.
Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Cu, Copper (wt.%) 1.26 0.029 1.25 1.27 4-Acid Digestion
Cu-Sol(H2SO4), Copper soluble (sulphuric) (wt.%) 1.06 0.047 1.04 1.08 Sulphuric Acid 5% Leach
Au, Gold (ppb) 187 6.6 185 189 Pb Fire Assay
Ag, Silver (ppm) 2.40 0.109 2.36 2.44 4-Acid Digestion
Al, Aluminium (wt.%) 6.05 0.220 5.98 6.13 4-Acid Digestion
As, Arsenic (ppm) 65 2.1 65 66 4-Acid Digestion
Ba, Barium (ppm) 1868 100 1829 1906 4-Acid Digestion
Be, Beryllium (ppm) 2.20 0.28 2.09 2.31 4-Acid Digestion
Bi, Bismuth (ppm) 43.3 2.12 42.3 44.2 4-Acid Digestion
Ca, Calcium (wt.%) 0.418 0.017 0.412 0.424 4-Acid Digestion
Cd, Cadmium (ppm) 0.79 0.08 0.76 0.81 4-Acid Digestion
Ce, Cerium (ppm) 75 5.1 73 77 4-Acid Digestion
Co, Cobalt (ppm) 87 3.6 86 89 4-Acid Digestion
Cr, Chromium (ppm) 10.8 1.9 10.1 11.5 4-Acid Digestion
Cs, Caesium (ppm) 4.86 0.279 4.73 4.99 4-Acid Digestion
Dy, Dysprosium (ppm) 3.15 0.38 2.86 3.44 4-Acid Digestion
Er, Erbium (ppm) 1.27 0.111 1.17 1.36 4-Acid Digestion
Eu, Europium (ppm) 1.76 0.159 1.64 1.88 4-Acid Digestion
Fe, Iron (wt.%) 14.64 0.705 14.35 14.92 4-Acid Digestion
Ga, Gallium (ppm) 44.3 2.35 43.2 45.4 4-Acid Digestion
Gd, Gadolinium (ppm) 4.97 0.420 4.59 5.35 4-Acid Digestion
Hf, Hafnium (ppm) 5.63 0.309 5.50 5.77 4-Acid Digestion
Ho, Holmium (ppm) 0.49 0.05 0.46 0.53 4-Acid Digestion
In, Indium (ppm) 4.90 0.350 4.73 5.06 4-Acid Digestion
K, Potassium (wt.%) 2.01 0.072 1.98 2.03 4-Acid Digestion
La, Lanthanum (ppm) 37.7 2.74 36.7 38.8 4-Acid Digestion
Li, Lithium (ppm) 14.4 0.74 14.2 14.7 4-Acid Digestion
Lu, Lutetium (ppm) 0.18 0.017 0.17 0.19 4-Acid Digestion
Mg, Magnesium (wt.%) 0.695 0.034 0.682 0.708 4-Acid Digestion
Mn, Manganese (wt.%) 0.033 0.002 0.032 0.033 4-Acid Digestion
Mo, Molybdenum (ppm) 9.53 0.577 9.31 9.76 4-Acid Digestion
Na, Sodium (wt.%) 1.69 0.097 1.66 1.73 4-Acid Digestion
Nb, Niobium (ppm) 13.0 0.89 12.6 13.4 4-Acid Digestion
Nd, Neodymium (ppm) 32.5 2.14 30.9 34.1 4-Acid Digestion
Ni, Nickel (ppm) 6.42 0.98 6.10 6.73 4-Acid Digestion
P, Phosphorus (wt.%) 0.026 0.002 0.025 0.027 4-Acid Digestion
Pb, Lead (ppm) 65 3.4 64 67 4-Acid Digestion
Pr, Praseodymium (ppm) 8.56 0.684 8.08 9.04 4-Acid Digestion
Rb, Rubidium (ppm) 96 3.9 95 98 4-Acid Digestion
S, Sulphur (wt.%) 0.128 0.007 0.125 0.131 4-Acid Digestion
Sb, Antimony (ppm) 5.20 0.346 5.04 5.36 4-Acid Digestion
Sc, Scandium (ppm) 5.55 0.476 5.38 5.72 4-Acid Digestion
Se, Selenium (ppm) 19.0 1.70 18.3 19.7 4-Acid Digestion
Sm, Samarium (ppm) 6.43 0.586 6.01 6.85 4-Acid Digestion
Sn, Tin (ppm) 6.22 0.86 5.93 6.50 4-Acid Digestion
Sr, Strontium (ppm) 113 5 111 115 4-Acid Digestion
Ta, Tantalum (ppm) 0.96 0.070 0.93 0.99 4-Acid Digestion
Tb, Terbium (ppm) 0.65 0.053 0.62 0.68 4-Acid Digestion
Te, Tellurium (ppm) 0.47 0.06 0.45 0.50 4-Acid Digestion
Th, Thorium (ppm) 11.0 0.51 10.8 11.3 4-Acid Digestion
Ti, Titanium (wt.%) 0.111 0.007 0.109 0.114 4-Acid Digestion
Tl, Thallium (ppm) 0.57 0.051 0.55 0.59 4-Acid Digestion
Tm, Thulium (ppm) 0.16 0.03 0.13 0.18 4-Acid Digestion
U, Uranium (ppm) 3.73 0.211 3.64 3.83 4-Acid Digestion
V, Vanadium (ppm) 10.4 1.9 9.6 11.3 4-Acid Digestion
W, Tungsten (ppm) 4.51 0.310 4.39 4.64 4-Acid Digestion
Y, Yttrium (ppm) 14.4 0.79 14.0 14.7 4-Acid Digestion
Yb, Ytterbium (ppm) 1.13 0.082 1.07 1.18 4-Acid Digestion
Zn, Zinc (ppm) 285 10 281 289 4-Acid Digestion
Zr, Zirconium (ppm) 210 12 205 214 4-Acid Digestion
Al, Aluminium (wt.%) 6.18 0.193 6.10 6.27 Borate / Peroxide Fusion ICP
As, Arsenic (ppm) 68 7 65 71 Borate / Peroxide Fusion ICP
Ba, Barium (ppm) 1906 79 1865 1948 Borate / Peroxide Fusion ICP
Be, Beryllium (ppm) 2.43 0.37 2.21 2.65 Borate / Peroxide Fusion ICP
Bi, Bismuth (ppm) 45.0 2.45 43.2 46.8 Borate / Peroxide Fusion ICP
Ca, Calcium (wt.%) 0.434 0.037 0.418 0.451 Borate / Peroxide Fusion ICP
Ce, Cerium (ppm) 74 5.0 70 78 Borate / Peroxide Fusion ICP
Co, Cobalt (ppm) 93 5.9 91 96 Borate / Peroxide Fusion ICP
Cs, Caesium (ppm) 4.95 0.195 4.83 5.06 Borate / Peroxide Fusion ICP
Cu, Copper (wt.%) 1.27 0.035 1.25 1.28 Borate / Peroxide Fusion ICP
Dy, Dysprosium (ppm) 3.67 0.271 3.50 3.83 Borate / Peroxide Fusion ICP
Er, Erbium (ppm) 1.55 0.120 1.49 1.61 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 1.82 0.125 1.73 1.90 Borate / Peroxide Fusion ICP
Fe, Iron (wt.%) 15.25 0.333 15.13 15.37 Borate / Peroxide Fusion ICP
Ga, Gallium (ppm) 45.0 2.43 43.6 46.4 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 5.28 0.358 5.12 5.43 Borate / Peroxide Fusion ICP
Hf, Hafnium (ppm) 6.08 0.455 5.83 6.34 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 0.60 0.07 0.55 0.65 Borate / Peroxide Fusion ICP
In, Indium (ppm) 5.11 0.365 4.82 5.41 Borate / Peroxide Fusion ICP
K, Potassium (wt.%) 2.09 0.116 2.04 2.14 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 38.5 1.39 37.8 39.2 Borate / Peroxide Fusion ICP
Li, Lithium (ppm) 14.6 2.6 13.9 15.3 Borate / Peroxide Fusion ICP
Lu, Lutetium (ppm) 0.20 0.02 0.18 0.21 Borate / Peroxide Fusion ICP
Mg, Magnesium (wt.%) 0.734 0.039 0.718 0.750 Borate / Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.034 0.003 0.033 0.035 Borate / Peroxide Fusion ICP
Mo, Molybdenum (ppm) 9.33 1.65 8.50 10.17 Borate / Peroxide Fusion ICP
Nb, Niobium (ppm) 13.8 1.23 13.1 14.6 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 32.8 1.38 32.1 33.6 Borate / Peroxide Fusion ICP
Ni, Nickel (ppm) 7.27 1.36 5.63 8.91 Borate / Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.029 0.003 0.027 0.030 Borate / Peroxide Fusion ICP
Pb, Lead (ppm) 66 4.6 63 69 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 8.56 0.515 8.23 8.90 Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 97 4.1 94 99 Borate / Peroxide Fusion ICP
S, Sulphur (wt.%) 0.129 0.013 0.122 0.137 Borate / Peroxide Fusion ICP
Sb, Antimony (ppm) 5.23 0.82 4.71 5.75 Borate / Peroxide Fusion ICP
Sc, Scandium (ppm) 4.98 0.53 4.77 5.20 Borate / Peroxide Fusion ICP
Si, Silicon (wt.%) 25.90 0.555 25.60 26.21 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 6.53 0.386 6.29 6.77 Borate / Peroxide Fusion ICP
Sn, Tin (ppm) 26.4 3.9 23.8 29.0 Borate / Peroxide Fusion ICP
Sr, Strontium (ppm) 115 9 111 120 Borate / Peroxide Fusion ICP
Ta, Tantalum (ppm) 1.03 0.11 0.96 1.11 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 0.73 0.035 0.70 0.75 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 10.9 0.55 10.6 11.2 Borate / Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.123 0.005 0.121 0.126 Borate / Peroxide Fusion ICP
Tl, Thallium (ppm) 0.56 0.043 0.55 0.58 Borate / Peroxide Fusion ICP
Tm, Thulium (ppm) 0.21 0.020 0.20 0.23 Borate / Peroxide Fusion ICP
U, Uranium (ppm) 3.82 0.204 3.70 3.94 Borate / Peroxide Fusion ICP
V, Vanadium (ppm) 12.8 2.4 10.9 14.8 Borate / Peroxide Fusion ICP
W, Tungsten (ppm) 4.17 0.81 3.64 4.69 Borate / Peroxide Fusion ICP
Y, Yttrium (ppm) 17.2 1.24 16.6 17.8 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 1.34 0.20 1.20 1.48 Borate / Peroxide Fusion ICP
Zn, Zinc (ppm) 290 16 283 297 Borate / Peroxide Fusion ICP
Zr, Zirconium (ppm) 213 7 205 221 Borate / Peroxide Fusion ICP
Ag, Silver (ppm) 2.32 0.170 2.26 2.39 Aqua Regia Digestion
Al, Aluminium (wt.%) 1.18 0.055 1.15 1.20 Aqua Regia Digestion
As, Arsenic (ppm) 62 4.3 60 63 Aqua Regia Digestion
Au, Gold (ppb) 186 8.6 182 189 Aqua Regia Digestion
Ba, Barium (ppm) 171 14 166 177 Aqua Regia Digestion
Be, Beryllium (ppm) 0.80 0.12 0.75 0.85 Aqua Regia Digestion
Bi, Bismuth (ppm) 42.0 3.12 40.6 43.3 Aqua Regia Digestion
Ca, Calcium (wt.%) 0.230 0.014 0.225 0.235 Aqua Regia Digestion
Cd, Cadmium (ppm) 0.78 0.066 0.75 0.81 Aqua Regia Digestion
Ce, Cerium (ppm) 61 4.2 59 63 Aqua Regia Digestion
Co, Cobalt (ppm) 84 4.6 82 86 Aqua Regia Digestion
Cr, Chromium (ppm) 9.17 1.25 8.76 9.58 Aqua Regia Digestion
Cs, Caesium (ppm) 1.01 0.15 0.93 1.08 Aqua Regia Digestion
Cu, Copper (wt.%) 1.25 0.036 1.24 1.26 Aqua Regia Digestion
Dy, Dysprosium (ppm) 1.46 0.26 1.23 1.68 Aqua Regia Digestion
Er, Erbium (ppm) 0.45 0.08 0.37 0.52 Aqua Regia Digestion
Eu, Europium (ppm) 1.02 0.15 0.89 1.15 Aqua Regia Digestion
Fe, Iron (wt.%) 13.86 0.470 13.67 14.06 Aqua Regia Digestion
Ga, Gallium (ppm) 25.3 2.7 24.4 26.3 Aqua Regia Digestion
Gd, Gadolinium (ppm) 2.91 0.34 2.58 3.24 Aqua Regia Digestion
Hf, Hafnium (ppm) 0.99 0.17 0.91 1.08 Aqua Regia Digestion
Hg, Mercury (ppm) < 0.050 IND IND IND Aqua Regia Digestion
Ho, Holmium (ppm) 0.20 0.03 0.17 0.23 Aqua Regia Digestion
In, Indium (ppm) 4.55 0.371 4.37 4.74 Aqua Regia Digestion
K, Potassium (wt.%) 0.237 0.020 0.229 0.245 Aqua Regia Digestion
La, Lanthanum (ppm) 30.1 2.41 29.2 31.0 Aqua Regia Digestion
Li, Lithium (ppm) 3.62 0.70 3.31 3.94 Aqua Regia Digestion
Lu, Lutetium (ppm) 0.052 0.007 0.048 0.057 Aqua Regia Digestion
Mg, Magnesium (wt.%) 0.389 0.026 0.379 0.399 Aqua Regia Digestion
Mn, Manganese (wt.%) 0.030 0.001 0.030 0.031 Aqua Regia Digestion
Mo, Molybdenum (ppm) 9.29 0.626 9.06 9.53 Aqua Regia Digestion
Na, Sodium (wt.%) 0.073 0.010 0.070 0.077 Aqua Regia Digestion
Nd, Neodymium (ppm) 22.5 1.86 20.9 24.1 Aqua Regia Digestion
Ni, Nickel (ppm) 5.62 0.75 5.36 5.89 Aqua Regia Digestion
P, Phosphorus (wt.%) 0.023 0.002 0.022 0.024 Aqua Regia Digestion
Pb, Lead (ppm) 56 4.3 54 57 Aqua Regia Digestion
Pr, Praseodymium (ppm) 6.07 0.420 5.67 6.46 Aqua Regia Digestion
Rb, Rubidium (ppm) 14.2 1.39 13.5 14.9 Aqua Regia Digestion
S, Sulphur (wt.%) 0.123 0.011 0.119 0.128 Aqua Regia Digestion
Sb, Antimony (ppm) 3.69 0.61 3.39 3.99 Aqua Regia Digestion
Sc, Scandium (ppm) 3.07 0.234 2.97 3.16 Aqua Regia Digestion
Se, Selenium (ppm) 17.3 2.9 16.1 18.6 Aqua Regia Digestion
Sm, Samarium (ppm) 4.09 0.237 3.84 4.34 Aqua Regia Digestion
Sn, Tin (ppm) 3.57 0.323 3.42 3.72 Aqua Regia Digestion
Sr, Strontium (ppm) 11.8 1.01 11.4 12.2 Aqua Regia Digestion
Tb, Terbium (ppm) 0.36 0.05 0.32 0.39 Aqua Regia Digestion
Te, Tellurium (ppm) 0.45 0.07 0.42 0.49 Aqua Regia Digestion
Th, Thorium (ppm) 6.61 0.615 6.34 6.89 Aqua Regia Digestion
Ti, Titanium (wt.%) 0.018 0.003 0.017 0.019 Aqua Regia Digestion
Tl, Thallium (ppm) 0.14 0.02 0.13 0.15 Aqua Regia Digestion
Tm, Thulium (ppm) 0.057 0.008 0.047 0.066 Aqua Regia Digestion
U, Uranium (ppm) 1.77 0.132 1.71 1.83 Aqua Regia Digestion
V, Vanadium (ppm) 7.91 0.98 7.50 8.33 Aqua Regia Digestion
W, Tungsten (ppm) 1.51 0.30 1.36 1.67 Aqua Regia Digestion
Y, Yttrium (ppm) 6.01 0.494 5.81 6.22 Aqua Regia Digestion
Yb, Ytterbium (ppm) 0.37 0.04 0.35 0.40 Aqua Regia Digestion
Zn, Zinc (ppm) 226 11 222 231 Aqua Regia Digestion
Zr, Zirconium (ppm) 38.5 5.9 35.8 41.1 Aqua Regia Digestion
SG, Specific Gravity (Unity) 2.95 0.078 2.91 2.99 Gas / Liquid Pycnometry
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