OREAS 684

OREAS 684 is a platinum group element (PGE) ore certified reference material (CRM) prepared and certified by Ore Research & Exploration Pty Ltd. OREAS 684 has been prepared from PGE ores sourced from Merensky Reef ores from the Bushveld Complex, from sites owned and operated by Anglo American Platinum, South Africa. The common minerals of economic importance within a pegmatitic pyroxenite host are sulphides of iron, nickel, copper and alloys of the PGE’s. OREAS 684 is one of a suite of five PGE ore CRMs ranging in 4E concentrations (4E = 4 elements; platinum (Pt), palladium (Pd), rhodium (Rh) and gold (Au)) from 0.82 to 6.1ppm.

Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Au, Gold (ppm) 0.248 0.014 0.242 0.255 Pb Fire Assay
Pd, Palladium (ppm) 1.72 0.068 1.69 1.76 Pb Fire Assay
Pt, Platinum (ppm) 3.87 0.213 3.76 3.97 Pb Fire Assay
Au, Gold (ppm) 0.237 0.013 0.224 0.249 NiS Fire Assay
Ir, Iridium (ppm) 0.10 0.006 0.10 0.11 NiS Fire Assay
Pd, Palladium (ppm) 1.74 0.048 1.70 1.77 NiS Fire Assay
Pt, Platinum (ppm) 3.80 0.189 3.67 3.92 NiS Fire Assay
Rh, Rhodium (ppm) 0.28 0.013 0.28 0.29 NiS Fire Assay
Ru, Ruthenium (ppm) 0.55 0.031 0.52 0.57 NiS Fire Assay
Al, Aluminium (wt.%) 6.02 0.123 5.98 6.07 Peroxide Fusion ICP
Ba, Barium (ppm) 71 5.1 68 74 Peroxide Fusion ICP
Bi, Bismuth (ppm) 0.40 0.07 0.37 0.44 Peroxide Fusion ICP
Ca, Calcium (wt.%) 4.56 0.200 4.47 4.66 Peroxide Fusion ICP
Ce, Cerium (ppm) 6.65 0.383 6.30 7.01 Peroxide Fusion ICP
Co, Cobalt (ppm) 118 8 114 121 Peroxide Fusion ICP
Cr, Chromium (wt.%) 1.36 0.052 1.33 1.39 Peroxide Fusion ICP
Cu, Copper (ppm) 1001 44 981 1021 Peroxide Fusion ICP
Er, Erbium (ppm) 0.51 0.022 0.50 0.53 Peroxide Fusion ICP
Eu, Europium (ppm) 0.25 0.04 0.22 0.28 Peroxide Fusion ICP
Fe, Iron (wt.%) 8.00 0.264 7.88 8.11 Peroxide Fusion ICP
Ga, Gallium (ppm) 11.7 0.61 11.3 12.1 Peroxide Fusion ICP
Gd, Gadolinium (ppm) 0.72 0.064 0.67 0.77 Peroxide Fusion ICP
K, Potassium (wt.%) 0.190 0.020 0.180 0.201 Peroxide Fusion ICP
La, Lanthanum (ppm) 3.41 0.270 3.20 3.62 Peroxide Fusion ICP
Mg, Magnesium (wt.%) 10.85 0.354 10.70 11.01 Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.129 0.004 0.127 0.131 Peroxide Fusion ICP
Nd, Neodymium (ppm) 3.16 0.233 3.01 3.31 Peroxide Fusion ICP
Ni, Nickel (ppm) 2230 84 2192 2269 Peroxide Fusion ICP
Pb, Lead (ppm) 11.4 1.5 9.9 12.9 Peroxide Fusion ICP
Pr, Praseodymium (ppm) 0.80 0.041 0.76 0.84 Peroxide Fusion ICP
Rb, Rubidium (ppm) 5.97 0.345 5.72 6.23 Peroxide Fusion ICP
S, Sulphur (wt.%) 0.455 0.025 0.439 0.470 Peroxide Fusion ICP
Sc, Scandium (ppm) 19.4 0.63 18.7 20.2 Peroxide Fusion ICP
Si, Silicon (wt.%) 22.42 0.812 22.01 22.84 Peroxide Fusion ICP
Sr, Strontium (ppm) 157 9 152 163 Peroxide Fusion ICP
Tb, Terbium (ppm) 0.11 0.02 0.10 0.13 Peroxide Fusion ICP
Th, Thorium (ppm) 0.74 0.12 0.69 0.79 Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.144 0.007 0.141 0.146 Peroxide Fusion ICP
V, Vanadium (ppm) 180 16 169 191 Peroxide Fusion ICP
Y, Yttrium (ppm) 4.50 0.197 4.38 4.63 Peroxide Fusion ICP
Yb, Ytterbium (ppm) 0.53 0.06 0.50 0.57 Peroxide Fusion ICP
Zn, Zinc (ppm) 101 13 92 110 Peroxide Fusion ICP
Ag, Silver (ppm) 0.352 0.028 0.334 0.370 4-Acid Digestion
Al, Aluminium (wt.%) 5.96 0.130 5.91 6.01 4-Acid Digestion
Ba, Barium (ppm) 71 3.6 69 72 4-Acid Digestion
Bi, Bismuth (ppm) 0.36 0.022 0.34 0.37 4-Acid Digestion
Ca, Calcium (wt.%) 4.44 0.160 4.37 4.51 4-Acid Digestion
Cd, Cadmium (ppm) 0.12 0.01 0.12 0.12 4-Acid Digestion
Ce, Cerium (ppm) 6.62 0.278 6.48 6.76 4-Acid Digestion
Co, Cobalt (ppm) 112 6 109 115 4-Acid Digestion
Cr, Chromium (wt.%) 1.04 0.18 0.91 1.17 4-Acid Digestion
Cs, Caesium (ppm) 0.26 0.023 0.25 0.27 4-Acid Digestion
Cu, Copper (ppm) 978 26 969 988 4-Acid Digestion
Dy, Dysprosium (ppm) 0.78 0.048 0.74 0.82 4-Acid Digestion
Er, Erbium (ppm) 0.55 0.028 0.53 0.57 4-Acid Digestion
Eu, Europium (ppm) 0.24 0.04 0.21 0.27 4-Acid Digestion
Fe, Iron (wt.%) 7.87 0.322 7.73 8.02 4-Acid Digestion
Ga, Gallium (ppm) 11.4 0.37 11.2 11.6 4-Acid Digestion
Gd, Gadolinium (ppm) 0.70 0.09 0.63 0.77 4-Acid Digestion
Hf, Hafnium (ppm) 0.37 0.04 0.36 0.39 4-Acid Digestion
Ho, Holmium (ppm) 0.18 0.007 0.17 0.18 4-Acid Digestion
In, Indium (ppm) 0.030 0.005 0.028 0.032 4-Acid Digestion
K, Potassium (wt.%) 0.152 0.009 0.148 0.156 4-Acid Digestion
La, Lanthanum (ppm) 3.33 0.174 3.24 3.42 4-Acid Digestion
Li, Lithium (ppm) 3.95 0.298 3.78 4.11 4-Acid Digestion
Lu, Lutetium (ppm) 0.087 0.007 0.081 0.092 4-Acid Digestion
Mg, Magnesium (wt.%) 10.78 0.364 10.61 10.96 4-Acid Digestion
Mn, Manganese (wt.%) 0.127 0.005 0.124 0.129 4-Acid Digestion
Mo, Molybdenum (ppm) 1.19 0.15 1.12 1.26 4-Acid Digestion
Na, Sodium (wt.%) 0.675 0.026 0.664 0.686 4-Acid Digestion
Nb, Niobium (ppm) 1.19 0.17 1.09 1.28 4-Acid Digestion
Nd, Neodymium (ppm) 3.14 0.133 3.04 3.24 4-Acid Digestion
Ni, Nickel (ppm) 2168 124 2111 2226 4-Acid Digestion
P, Phosphorus (wt.%) 0.012 0.001 0.011 0.012 4-Acid Digestion
Pb, Lead (ppm) 11.1 0.86 10.8 11.5 4-Acid Digestion
Pr, Praseodymium (ppm) 0.81 0.037 0.78 0.84 4-Acid Digestion
Rb, Rubidium (ppm) 5.67 0.310 5.52 5.82 4-Acid Digestion
S, Sulphur (wt.%) 0.459 0.032 0.441 0.476 4-Acid Digestion
Sc, Scandium (ppm) 19.1 1.35 18.5 19.7 4-Acid Digestion
Sm, Samarium (ppm) 0.69 0.032 0.66 0.72 4-Acid Digestion
Sn, Tin (ppm) 0.66 0.12 0.59 0.73 4-Acid Digestion
Sr, Strontium (ppm) 161 8 156 165 4-Acid Digestion
Tb, Terbium (ppm) 0.12 0.008 0.12 0.13 4-Acid Digestion
Te, Tellurium (ppm) 0.69 0.11 0.63 0.75 4-Acid Digestion
Th, Thorium (ppm) 0.77 0.071 0.73 0.80 4-Acid Digestion
Ti, Titanium (wt.%) 0.138 0.007 0.135 0.141 4-Acid Digestion
Tl, Thallium (ppm) 0.065 0.006 0.062 0.067 4-Acid Digestion
Tm, Thulium (ppm) 0.081 0.011 0.077 0.085 4-Acid Digestion
U, Uranium (ppm) 0.22 0.03 0.21 0.24 4-Acid Digestion
V, Vanadium (ppm) 174 10 169 179 4-Acid Digestion
W, Tungsten (ppm) 0.56 0.06 0.54 0.59 4-Acid Digestion
Y, Yttrium (ppm) 4.39 0.283 4.25 4.54 4-Acid Digestion
Yb, Ytterbium (ppm) 0.56 0.042 0.54 0.59 4-Acid Digestion
Zn, Zinc (ppm) 99 8.7 95 103 4-Acid Digestion
Zr, Zirconium (ppm) 12.4 1.4 11.6 13.2 4-Acid Digestion
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Information is provided for reference only.

Specifications