Specifications
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CRM State:
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Matrix:
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Mineralisation:
OREAS 506 was prepared from a blend of porphyry copper-gold ore, barren granodiorite and a minor quantity of Cu-Mo concentrate. The ore was sourced from the Northparkes Mine located in the Central West of New South Wales, Australia. The barren granodiorite was sourced from the mafic, S-Type, Late Devonian Bulla Granodiorite complex located in northern Melbourne, Australia.
Twenty seven commercial analytical laboratories participated in the program to certify the elements reported in Table 1. The following methods were employed:
Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits High | Method |
---|---|---|---|---|---|
Cu, Copper (wt.%) | 0.444 | 0.010 | 0.440 | 0.447 | 4-Acid Digestion |
Au, Gold (ppm) | 0.364 | 0.010 | 0.360 | 0.367 | Pb Fire Assay |
Mo, Molybdenum (ppm) | 87 | 3.6 | 85 | 88 | 4-Acid Digestion |
Au, Gold (ppm) | 0.361 | 0.013 | 0.355 | 0.366 | Aqua Regia Digestion (sample weights 10-50g) |
Ag, Silver (ppm) | 1.88 | 0.075 | 1.85 | 1.91 | 4-Acid Digestion |
Al, Aluminium (wt.%) | 7.57 | 0.438 | 7.39 | 7.74 | 4-Acid Digestion |
As, Arsenic (ppm) | 37.7 | 2.28 | 36.8 | 38.5 | 4-Acid Digestion |
Ba, Barium (ppm) | 1022 | 39 | 1006 | 1037 | 4-Acid Digestion |
Be, Beryllium (ppm) | 2.40 | 0.225 | 2.30 | 2.49 | 4-Acid Digestion |
Bi, Bismuth (ppm) | 2.75 | 0.154 | 2.68 | 2.81 | 4-Acid Digestion |
Ca, Calcium (wt.%) | 1.72 | 0.085 | 1.68 | 1.75 | 4-Acid Digestion |
Cd, Cadmium (ppm) | 0.31 | 0.030 | 0.30 | 0.33 | 4-Acid Digestion |
Ce, Cerium (ppm) | 67 | 4.3 | 65 | 69 | 4-Acid Digestion |
Co, Cobalt (ppm) | 7.37 | 0.253 | 7.27 | 7.47 | 4-Acid Digestion |
Cr, Chromium (ppm) | 36.5 | 7.0 | 33.6 | 39.5 | 4-Acid Digestion |
Cs, Caesium (ppm) | 9.57 | 0.416 | 9.37 | 9.77 | 4-Acid Digestion |
Dy, Dysprosium (ppm) | 3.53 | 0.114 | 3.44 | 3.61 | 4-Acid Digestion |
Er, Erbium (ppm) | 1.40 | 0.113 | 1.31 | 1.49 | 4-Acid Digestion |
Eu, Europium (ppm) | 1.22 | 0.17 | 1.06 | 1.39 | 4-Acid Digestion |
Fe, Iron (wt.%) | 2.79 | 0.077 | 2.76 | 2.82 | 4-Acid Digestion |
Ga, Gallium (ppm) | 19.5 | 0.85 | 19.1 | 19.8 | 4-Acid Digestion |
Gd, Gadolinium (ppm) | 5.52 | 0.410 | 5.17 | 5.87 | 4-Acid Digestion |
Hf, Hafnium (ppm) | 2.08 | 0.207 | 1.99 | 2.17 | 4-Acid Digestion |
Ho, Holmium (ppm) | 0.59 | 0.016 | 0.58 | 0.61 | 4-Acid Digestion |
In, Indium (ppm) | 0.10 | 0.006 | 0.10 | 0.10 | 4-Acid Digestion |
K, Potassium (wt.%) | 3.32 | 0.133 | 3.27 | 3.37 | 4-Acid Digestion |
La, Lanthanum (ppm) | 31.5 | 2.62 | 30.4 | 32.6 | 4-Acid Digestion |
Li, Lithium (ppm) | 44.1 | 2.69 | 42.8 | 45.4 | 4-Acid Digestion |
Lu, Lutetium (ppm) | 0.18 | 0.013 | 0.17 | 0.19 | 4-Acid Digestion |
Mg, Magnesium (wt.%) | 0.703 | 0.028 | 0.691 | 0.714 | 4-Acid Digestion |
Mn, Manganese (wt.%) | 0.033 | 0.001 | 0.033 | 0.034 | 4-Acid Digestion |
Na, Sodium (wt.%) | 2.20 | 0.072 | 2.17 | 2.22 | 4-Acid Digestion |
Nb, Niobium (ppm) | 11.8 | 0.53 | 11.5 | 12.0 | 4-Acid Digestion |
Nd, Neodymium (ppm) | 30.3 | 1.53 | 29.0 | 31.6 | 4-Acid Digestion |
Ni, Nickel (ppm) | 14.5 | 0.72 | 14.2 | 14.8 | 4-Acid Digestion |
P, Phosphorus (wt.%) | 0.087 | 0.003 | 0.086 | 0.088 | 4-Acid Digestion |
Pb, Lead (ppm) | 27.7 | 1.99 | 26.8 | 28.7 | 4-Acid Digestion |
Pr, Praseodymium (ppm) | 8.02 | 0.521 | 7.55 | 8.48 | 4-Acid Digestion |
Rb, Rubidium (ppm) | 151 | 7 | 147 | 154 | 4-Acid Digestion |
Re, Rhenium (ppb) | 72.1 | 6.6 | 68.8 | 75.3 | 4-Acid Digestion |
S, Sulphur (wt.%) | 0.589 | 0.022 | 0.580 | 0.597 | 4-Acid Digestion |
Sb, Antimony (ppm) | 4.27 | 0.171 | 4.21 | 4.33 | 4-Acid Digestion |
Sc, Scandium (ppm) | 7.94 | 0.392 | 7.76 | 8.11 | 4-Acid Digestion |
Se, Selenium (ppm) | 5.19 | 0.57 | 5.00 | 5.37 | 4-Acid Digestion |
Sm, Samarium (ppm) | 6.35 | 0.371 | 6.03 | 6.67 | 4-Acid Digestion |
Sn, Tin (ppm) | 4.74 | 0.223 | 4.63 | 4.85 | 4-Acid Digestion |
Sr, Strontium (ppm) | 279 | 10 | 275 | 283 | 4-Acid Digestion |
Ta, Tantalum (ppm) | 1.00 | 0.10 | 0.94 | 1.05 | 4-Acid Digestion |
Tb, Terbium (ppm) | 0.74 | 0.038 | 0.71 | 0.77 | 4-Acid Digestion |
Te, Tellurium (ppm) | 0.63 | 0.049 | 0.61 | 0.66 | 4-Acid Digestion |
Th, Thorium (ppm) | 12.5 | 1.08 | 12.0 | 13.0 | 4-Acid Digestion |
Ti, Titanium (wt.%) | 0.330 | 0.013 | 0.325 | 0.336 | 4-Acid Digestion |
Tl, Thallium (ppm) | 0.85 | 0.040 | 0.83 | 0.86 | 4-Acid Digestion |
Tm, Thulium (ppm) | 0.19 | 0.014 | 0.18 | 0.21 | 4-Acid Digestion |
U, Uranium (ppm) | 3.51 | 0.342 | 3.40 | 3.62 | 4-Acid Digestion |
V, Vanadium (ppm) | 67 | 2.4 | 66 | 68 | 4-Acid Digestion |
W, Tungsten (ppm) | 8.11 | 0.704 | 7.87 | 8.35 | 4-Acid Digestion |
Y, Yttrium (ppm) | 14.6 | 1.17 | 14.1 | 15.1 | 4-Acid Digestion |
Yb, Ytterbium (ppm) | 1.16 | 0.13 | 1.07 | 1.24 | 4-Acid Digestion |
Zn, Zinc (ppm) | 91 | 3.9 | 89 | 93 | 4-Acid Digestion |
Zr, Zirconium (ppm) | 69 | 4.7 | 67 | 71 | 4-Acid Digestion |
Ag, Silver (ppm) | 1.82 | 0.089 | 1.78 | 1.86 | Aqua Regia Digestion |
Al, Aluminium (wt.%) | 1.80 | 0.106 | 1.76 | 1.85 | Aqua Regia Digestion |
As, Arsenic (ppm) | 36.8 | 1.74 | 36.2 | 37.4 | Aqua Regia Digestion |
Ba, Barium (ppm) | 506 | 23 | 495 | 517 | Aqua Regia Digestion |
Be, Beryllium (ppm) | 1.34 | 0.124 | 1.29 | 1.40 | Aqua Regia Digestion |
Bi, Bismuth (ppm) | 2.79 | 0.155 | 2.72 | 2.86 | Aqua Regia Digestion |
Ca, Calcium (wt.%) | 0.712 | 0.036 | 0.697 | 0.727 | Aqua Regia Digestion |
Cd, Cadmium (ppm) | 0.23 | 0.03 | 0.22 | 0.25 | Aqua Regia Digestion |
Ce, Cerium (ppm) | 33.0 | 6.5 | 29.6 | 36.3 | Aqua Regia Digestion |
Co, Cobalt (ppm) | 7.16 | 0.343 | 7.00 | 7.33 | Aqua Regia Digestion |
Cr, Chromium (ppm) | 45.3 | 2.83 | 44.2 | 46.4 | Aqua Regia Digestion |
Cs, Caesium (ppm) | 7.82 | 0.155 | 7.75 | 7.90 | Aqua Regia Digestion |
Cu, Copper (wt.%) | 0.441 | 0.012 | 0.437 | 0.446 | Aqua Regia Digestion |
Dy, Dysprosium (ppm) | 2.43 | 0.30 | 2.17 | 2.68 | Aqua Regia Digestion |
Er, Erbium (ppm) | 0.96 | 0.077 | 0.90 | 1.03 | Aqua Regia Digestion |
Eu, Europium (ppm) | 0.32 | 0.015 | 0.31 | 0.34 | Aqua Regia Digestion |
Fe, Iron (wt.%) | 2.73 | 0.088 | 2.69 | 2.76 | Aqua Regia Digestion |
Ga, Gallium (ppm) | 8.40 | 0.722 | 8.06 | 8.74 | Aqua Regia Digestion |
Gd, Gadolinium (ppm) | 3.38 | 0.86 | 2.63 | 4.14 | Aqua Regia Digestion |
Ge, Germanium (ppm) | 0.10 | 0.02 | 0.08 | 0.13 | Aqua Regia Digestion |
Hf, Hafnium (ppm) | 0.31 | 0.019 | 0.30 | 0.32 | Aqua Regia Digestion |
Ho, Holmium (ppm) | 0.38 | 0.037 | 0.35 | 0.41 | Aqua Regia Digestion |
In, Indium (ppm) | 0.097 | 0.006 | 0.094 | 0.101 | Aqua Regia Digestion |
K, Potassium (wt.%) | 0.937 | 0.037 | 0.922 | 0.952 | Aqua Regia Digestion |
La, Lanthanum (ppm) | 15.0 | 1.9 | 14.1 | 16.0 | Aqua Regia Digestion |
Li, Lithium (ppm) | 37.3 | 2.62 | 36.1 | 38.5 | Aqua Regia Digestion |
Lu, Lutetium (ppm) | 0.10 | 0.005 | 0.10 | 0.11 | Aqua Regia Digestion |
Mg, Magnesium (wt.%) | 0.671 | 0.026 | 0.661 | 0.682 | Aqua Regia Digestion |
Mn, Manganese (wt.%) | 0.030 | 0.001 | 0.029 | 0.030 | Aqua Regia Digestion |
Mo, Molybdenum (ppm) | 83 | 2.8 | 82 | 84 | Aqua Regia Digestion |
Na, Sodium (wt.%) | 0.161 | 0.018 | 0.152 | 0.169 | Aqua Regia Digestion |
Nb, Niobium (ppm) | 0.87 | 0.18 | 0.75 | 0.99 | Aqua Regia Digestion |
Nd, Neodymium (ppm) | 18.1 | 4.1 | 13.5 | 22.7 | Aqua Regia Digestion |
Ni, Nickel (ppm) | 14.5 | 0.59 | 14.2 | 14.7 | Aqua Regia Digestion |
P, Phosphorus (wt.%) | 0.069 | 0.004 | 0.067 | 0.070 | Aqua Regia Digestion |
Pb, Lead (ppm) | 11.4 | 0.86 | 11.1 | 11.7 | Aqua Regia Digestion |
Rb, Rubidium (ppm) | 91 | 4.5 | 88 | 93 | Aqua Regia Digestion |
Re, Rhenium (ppb) | 70.0 | 4.7 | 67.5 | 72.4 | Aqua Regia Digestion |
S, Sulphur (wt.%) | 0.586 | 0.018 | 0.579 | 0.593 | Aqua Regia Digestion |
Sb, Antimony (ppm) | 3.08 | 0.37 | 2.89 | 3.27 | Aqua Regia Digestion |
Sc, Scandium (ppm) | 7.36 | 0.270 | 7.25 | 7.48 | Aqua Regia Digestion |
Se, Selenium (ppm) | 4.80 | 0.65 | 4.50 | 5.09 | Aqua Regia Digestion |
Sm, Samarium (ppm) | 3.51 | 0.99 | 2.63 | 4.39 | Aqua Regia Digestion |
Sn, Tin (ppm) | 3.50 | 0.150 | 3.42 | 3.57 | Aqua Regia Digestion |
Sr, Strontium (ppm) | 98 | 4.9 | 95 | 100 | Aqua Regia Digestion |
Tb, Terbium (ppm) | 0.49 | 0.08 | 0.43 | 0.54 | Aqua Regia Digestion |
Te, Tellurium (ppm) | 0.60 | 0.041 | 0.58 | 0.62 | Aqua Regia Digestion |
Th, Thorium (ppm) | 6.01 | 0.61 | 5.63 | 6.39 | Aqua Regia Digestion |
Ti, Titanium (wt.%) | 0.237 | 0.010 | 0.232 | 0.241 | Aqua Regia Digestion |
Tl, Thallium (ppm) | 0.58 | 0.044 | 0.56 | 0.60 | Aqua Regia Digestion |
Tm, Thulium (ppm) | 0.12 | 0.005 | 0.12 | 0.13 | Aqua Regia Digestion |
U, Uranium (ppm) | 2.95 | 0.180 | 2.88 | 3.02 | Aqua Regia Digestion |
V, Vanadium (ppm) | 58 | 3.0 | 57 | 59 | Aqua Regia Digestion |
W, Tungsten (ppm) | 5.42 | 0.376 | 5.23 | 5.62 | Aqua Regia Digestion |
Y, Yttrium (ppm) | 10.4 | 0.41 | 10.2 | 10.6 | Aqua Regia Digestion |
Yb, Ytterbium (ppm) | 0.73 | 0.043 | 0.69 | 0.76 | Aqua Regia Digestion |
Zn, Zinc (ppm) | 86 | 4.3 | 84 | 88 | Aqua Regia Digestion |
Zr, Zirconium (ppm) | 8.20 | 0.721 | 7.85 | 8.54 | Aqua Regia Digestion |
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