OREAS 136

OREAS 136 has been prepared from a blend of barren and ore grade SEDEX Type Zn-Pb-Ag materials sourced from the Dugald River deposit located in the Mt Isa Inlier, ~65km north-west of Cloncurry in north-west Queensland, Australia. The mineralisation style is dominated by sphalerite and galena with a gangue of graphitic slate, pyrrhotite and pyrite. The deposit is hosted within a sequence of upper greenschist to amphibolite facies metamorphic rocks consisting quartzite, schists, slates and dolomite.

Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
Zn, Zinc (wt.%) 3.63 0.058 3.61 3.65 4-Acid Digestion
Pb, Lead (wt.%) 4.76 0.169 4.69 4.83 4-Acid Digestion
Ag, Silver (ppm) 151 5 149 153 4-Acid Digestion
Al, Aluminium (wt.%) 4.09 0.273 3.96 4.21 4-Acid Digestion
As, Arsenic (ppm) 2145 100 2094 2196 4-Acid Digestion
Be, Beryllium (ppm) 2.37 0.142 2.30 2.44 4-Acid Digestion
Bi, Bismuth (ppm) 6.37 0.75 5.94 6.80 4-Acid Digestion
Ca, Calcium (wt.%) 2.25 0.096 2.21 2.30 4-Acid Digestion
Cd, Cadmium (ppm) 102 9 97 107 4-Acid Digestion
Ce, Cerium (ppm) 92 15 84 100 4-Acid Digestion
Co, Cobalt (ppm) 28.7 2.57 27.3 30.1 4-Acid Digestion
Cr, Chromium (ppm) 35.7 3.6 33.0 38.3 4-Acid Digestion
Cs, Caesium (ppm) 4.56 0.51 4.25 4.87 4-Acid Digestion
Cu, Copper (ppm) 306 14 300 312 4-Acid Digestion
Dy, Dysprosium (ppm) 5.88 0.188 5.72 6.04 4-Acid Digestion
Er, Erbium (ppm) 2.75 0.123 2.65 2.85 4-Acid Digestion
Eu, Europium (ppm) 3.97 0.363 3.62 4.32 4-Acid Digestion
Fe, Iron (wt.%) 11.50 0.612 11.22 11.78 4-Acid Digestion
Ga, Gallium (ppm) 12.2 1.5 11.1 13.3 4-Acid Digestion
Gd, Gadolinium (ppm) 7.97 0.668 7.39 8.55 4-Acid Digestion
Hf, Hafnium (ppm) 2.50 0.236 2.36 2.65 4-Acid Digestion
Ho, Holmium (ppm) 1.02 0.083 0.93 1.12 4-Acid Digestion
In, Indium (ppm) 2.12 0.24 1.96 2.27 4-Acid Digestion
K, Potassium (wt.%) 3.61 0.268 3.50 3.73 4-Acid Digestion
La, Lanthanum (ppm) 46.6 6.0 43.0 50.2 4-Acid Digestion
Li, Lithium (ppm) 38.5 2.30 37.1 39.8 4-Acid Digestion
Lu, Lutetium (ppm) 0.32 0.04 0.29 0.35 4-Acid Digestion
Mg, Magnesium (wt.%) 0.885 0.066 0.856 0.914 4-Acid Digestion
Mn, Manganese (wt.%) 0.968 0.033 0.953 0.982 4-Acid Digestion
Na, Sodium (wt.%) 0.146 0.010 0.141 0.151 4-Acid Digestion
Nd, Neodymium (ppm) 42.8 3.85 39.8 45.9 4-Acid Digestion
Ni, Nickel (ppm) 29.0 2.63 27.5 30.5 4-Acid Digestion
P, Phosphorus (wt.%) 0.090 0.005 0.088 0.092 4-Acid Digestion
Pr, Praseodymium (ppm) 11.4 0.81 10.7 12.1 4-Acid Digestion
Rb, Rubidium (ppm) 168 10 160 175 4-Acid Digestion
S, Sulphur (wt.%) 7.47 0.259 7.35 7.59 4-Acid Digestion
Sb, Antimony (ppm) 96 10 91 102 4-Acid Digestion
Sc, Scandium (ppm) 6.75 0.75 6.22 7.28 4-Acid Digestion
Sm, Samarium (ppm) 8.48 0.649 7.93 9.03 4-Acid Digestion
Sn, Tin (ppm) 4.38 0.48 4.07 4.69 4-Acid Digestion
Sr, Strontium (ppm) 151 17 143 159 4-Acid Digestion
Tb, Terbium (ppm) 1.03 0.056 0.98 1.08 4-Acid Digestion
Th, Thorium (ppm) 7.90 1.37 7.04 8.77 4-Acid Digestion
Ti, Titanium (wt.%) 0.128 0.010 0.121 0.136 4-Acid Digestion
Tl, Thallium (ppm) 29.2 1.11 28.5 29.9 4-Acid Digestion
Tm, Thulium (ppm) 0.34 0.025 0.31 0.36 4-Acid Digestion
U, Uranium (ppm) 8.65 0.471 8.39 8.91 4-Acid Digestion
V, Vanadium (ppm) 62 3.6 60 64 4-Acid Digestion
W, Tungsten (ppm) 6.70 0.502 6.41 6.99 4-Acid Digestion
Y, Yttrium (ppm) 31.7 2.09 30.4 32.9 4-Acid Digestion
Yb, Ytterbium (ppm) 2.23 0.156 2.10 2.37 4-Acid Digestion
Zr, Zirconium (ppm) 86 6.8 82 90 4-Acid Digestion
Ag, Silver (ppm) 147 5 141 152 Peroxide Fusion ICP
Al, Aluminium (wt.%) 4.16 0.103 4.11 4.20 Peroxide Fusion ICP
As, Arsenic (ppm) 2214 150 2137 2291 Peroxide Fusion ICP
Ba, Barium (ppm) 4109 186 3977 4240 Peroxide Fusion ICP
Be, Beryllium (ppm) 2.74 0.48 2.45 3.02 Peroxide Fusion ICP
Ca, Calcium (wt.%) 2.27 0.079 2.23 2.31 Peroxide Fusion ICP
Cd, Cadmium (ppm) 112 6 108 116 Peroxide Fusion ICP
Co, Cobalt (ppm) 29.0 2.03 28.1 30.0 Peroxide Fusion ICP
Cs, Caesium (ppm) 4.65 0.330 4.32 4.98 Peroxide Fusion ICP
Cu, Copper (ppm) 305 18 296 313 Peroxide Fusion ICP
Er, Erbium (ppm) 2.93 0.274 2.67 3.19 Peroxide Fusion ICP
Fe, Iron (wt.%) 11.51 0.418 11.31 11.71 Peroxide Fusion ICP
La, Lanthanum (ppm) 54 2.1 53 56 Peroxide Fusion ICP
Li, Lithium (ppm) 39.9 1.83 37.7 42.2 Peroxide Fusion ICP
Mg, Magnesium (wt.%) 0.901 0.035 0.884 0.917 Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.976 0.045 0.953 0.999 Peroxide Fusion ICP
Mo, Molybdenum (ppm) 8.20 0.98 7.22 9.19 Peroxide Fusion ICP
Nd, Neodymium (ppm) 42.8 1.90 40.6 45.1 Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.092 0.011 0.081 0.103 Peroxide Fusion ICP
Pb, Lead (wt.%) 4.73 0.119 4.67 4.78 Peroxide Fusion ICP
Rb, Rubidium (ppm) 175 8 168 181 Peroxide Fusion ICP
S, Sulphur (wt.%) 7.61 0.194 7.52 7.69 Peroxide Fusion ICP
Sb, Antimony (ppm) 101 7 96 106 Peroxide Fusion ICP
Si, Silicon (wt.%) 21.36 0.492 21.11 21.61 Peroxide Fusion ICP
Sm, Samarium (ppm) 8.17 0.622 7.47 8.87 Peroxide Fusion ICP
Sr, Strontium (ppm) 167 18 156 179 Peroxide Fusion ICP
Tb, Terbium (ppm) 1.07 0.16 0.86 1.27 Peroxide Fusion ICP
Th, Thorium (ppm) 8.50 0.521 8.07 8.92 Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.182 0.009 0.179 0.185 Peroxide Fusion ICP
Tl, Thallium (ppm) 28.5 1.10 27.5 29.5 Peroxide Fusion ICP
Tm, Thulium (ppm) 0.40 0.003 0.40 0.40 Peroxide Fusion ICP
U, Uranium (ppm) 8.69 0.371 8.50 8.88 Peroxide Fusion ICP
V, Vanadium (ppm) 66 11 59 73 Peroxide Fusion ICP
W, Tungsten (ppm) 6.43 1.06 5.51 7.34 Peroxide Fusion ICP
Y, Yttrium (ppm) 35.2 3.40 32.6 37.8 Peroxide Fusion ICP
Yb, Ytterbium (ppm) 2.36 0.215 2.19 2.53 Peroxide Fusion ICP
Zn, Zinc (wt.%) 3.63 0.094 3.59 3.67 Peroxide Fusion ICP
Ag, Silver (ppm) 149 5 146 151 Aqua Regia Digestion
Al, Aluminium (wt.%) 1.13 0.126 1.06 1.19 Aqua Regia Digestion
As, Arsenic (ppm) 2147 108 2089 2205 Aqua Regia Digestion
Bi, Bismuth (ppm) 6.32 0.75 5.81 6.82 Aqua Regia Digestion
Ca, Calcium (wt.%) 2.14 0.107 2.09 2.18 Aqua Regia Digestion
Cd, Cadmium (ppm) 101 9 96 105 Aqua Regia Digestion
Ce, Cerium (ppm) 88 10 80 95 Aqua Regia Digestion
Co, Cobalt (ppm) 26.8 1.59 26.2 27.4 Aqua Regia Digestion
Cr, Chromium (ppm) 20.1 1.83 19.1 21.1 Aqua Regia Digestion
Cs, Caesium (ppm) 2.58 0.144 2.47 2.68 Aqua Regia Digestion
Cu, Copper (ppm) 310 8 306 314 Aqua Regia Digestion
Eu, Europium (ppm) 3.63 0.47 2.99 4.27 Aqua Regia Digestion
Fe, Iron (wt.%) 11.12 0.508 10.86 11.37 Aqua Regia Digestion
Ga, Gallium (ppm) 5.70 0.85 5.02 6.38 Aqua Regia Digestion
Hg, Mercury (ppm) 1.70 0.126 1.57 1.83 Aqua Regia Digestion
In, Indium (ppm) 1.92 0.187 1.77 2.06 Aqua Regia Digestion
La, Lanthanum (ppm) 43.0 7.1 38.8 47.1 Aqua Regia Digestion
Li, Lithium (ppm) 25.6 2.38 23.8 27.3 Aqua Regia Digestion
Lu, Lutetium (ppm) 0.20 0.03 0.16 0.25 Aqua Regia Digestion
Mg, Magnesium (wt.%) 0.743 0.047 0.722 0.763 Aqua Regia Digestion
Mn, Manganese (wt.%) 0.876 0.029 0.862 0.890 Aqua Regia Digestion
Mo, Molybdenum (ppm) 7.04 0.630 6.67 7.41 Aqua Regia Digestion
Na, Sodium (wt.%) 0.028 0.004 0.024 0.032 Aqua Regia Digestion
Nd, Neodymium (ppm) 40.3 3.35 36.1 44.6 Aqua Regia Digestion
Ni, Nickel (ppm) 28.4 3.5 26.8 30.0 Aqua Regia Digestion
P, Phosphorus (wt.%) 0.090 0.006 0.087 0.093 Aqua Regia Digestion
Pb, Lead (wt.%) 4.78 0.129 4.71 4.86 Aqua Regia Digestion
Pr, Praseodymium (ppm) 9.98 1.44 8.03 11.94 Aqua Regia Digestion
Rb, Rubidium (ppm) 45.5 6.8 40.5 50.4 Aqua Regia Digestion
S, Sulphur (wt.%) 7.54 0.339 7.38 7.70 Aqua Regia Digestion
Sb, Antimony (ppm) 83 13 76 91 Aqua Regia Digestion
Sc, Scandium (ppm) 3.44 0.55 3.06 3.82 Aqua Regia Digestion
Sn, Tin (ppm) 3.69 0.46 3.25 4.13 Aqua Regia Digestion
Sr, Strontium (ppm) 32.4 6.4 29.2 35.7 Aqua Regia Digestion
Tb, Terbium (ppm) 0.94 0.18 0.70 1.19 Aqua Regia Digestion
Te, Tellurium (ppm) 0.18 0.03 0.15 0.21 Aqua Regia Digestion
Th, Thorium (ppm) 7.71 0.85 7.14 8.29 Aqua Regia Digestion
Ti, Titanium (wt.%) 0.025 0.002 0.023 0.027 Aqua Regia Digestion
Tl, Thallium (ppm) 7.41 1.34 6.43 8.40 Aqua Regia Digestion
U, Uranium (ppm) 7.65 0.313 7.44 7.87 Aqua Regia Digestion
V, Vanadium (ppm) 31.5 3.4 29.9 33.2 Aqua Regia Digestion
W, Tungsten (ppm) 5.76 0.455 5.45 6.07 Aqua Regia Digestion
Y, Yttrium (ppm) 25.9 1.97 24.6 27.1 Aqua Regia Digestion
Yb, Ytterbium (ppm) 1.49 0.19 1.27 1.70 Aqua Regia Digestion
Zn, Zinc (wt.%) 3.58 0.140 3.52 3.64 Aqua Regia Digestion
Zr, Zirconium (ppm) 25.7 5.0 22.5 29.0 Aqua Regia Digestion
C, Carbon (wt.%) 2.89 0.076 2.85 2.92 Infrared Combustion
S, Sulphur (wt.%) 7.81 0.148 7.73 7.88 Infrared Combustion
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