OREAS 60d
Specs
- CRM State: primary
- Matrix: meta-andesite
- Mineralisation: low sulphidation epithermal
CRM Group
Price
- 60g = $7.35
- 500g = $61.00
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OREAS 60d was prepared from coarse reject splits of gold-silver ore samples blended with barren andesite. The gold-silver ore was sourced from the Cracow mine located 500km northwest of Brisbane in Queensland, Australia. The barren andesite was sourced from the Carboniferous Blair Duguid Hypersthene Andesite intrusive, located 70kms northwest of Newcastle, Australia. Cracow is a low sulphidation epithermal deposit hosted by meta-andesitic volcanics. High grade gold mineralisation occurs within fissure quartz veins and is associated with zones of silicification, present as quartz lode breccia and as quartz vein breccia. OREAS 60d is one of a suite of three CRMs ranging in gold content from 2.47 to 9.71ppm.
Constituent | Certified Value | 1SD | 95% Confidence Low | 95% Confidence High | Method |
---|---|---|---|---|---|
Au, Gold (ppm) | 2.47 | 0.079 | 2.44 | 2.50 | Pb Fire Assay |
Ag, Silver (ppm) | 4.57 | 0.178 | 4.52 | 4.63 | 4-Acid Digestion |
Cu, Copper (ppm) | 73 | 4.4 | 72 | 75 | 4-Acid Digestion |
Au, Gold (ppm) | 2.43 | 0.110 | 2.38 | 2.48 | Aqua Regia Digestion (sample weights 10-50g) |
Al, Aluminium (wt.%) | 3.56 | 0.176 | 3.49 | 3.64 | 4-Acid Digestion |
As, Arsenic (ppm) | 15.7 | 1.39 | 15.1 | 16.3 | 4-Acid Digestion |
Ba, Barium (ppm) | 215 | 8 | 212 | 218 | 4-Acid Digestion |
Be, Beryllium (ppm) | 0.72 | 0.070 | 0.69 | 0.75 | 4-Acid Digestion |
Bi, Bismuth (ppm) | 0.31 | 0.022 | 0.30 | 0.32 | 4-Acid Digestion |
Ca, Calcium (wt.%) | 10.19 | 0.396 | 10.03 | 10.35 | 4-Acid Digestion |
Cd, Cadmium (ppm) | 0.15 | 0.03 | 0.14 | 0.16 | 4-Acid Digestion |
Ce, Cerium (ppm) | 18.6 | 1.67 | 17.8 | 19.4 | 4-Acid Digestion |
Co, Cobalt (ppm) | 7.59 | 0.689 | 7.23 | 7.94 | 4-Acid Digestion |
Cr, Chromium (ppm) | 13.6 | 2.7 | 12.5 | 14.8 | 4-Acid Digestion |
Cs, Cesium (ppm) | 4.34 | 0.274 | 4.22 | 4.47 | 4-Acid Digestion |
Dy, Dysprosium (ppm) | 1.37 | 0.060 | 1.32 | 1.41 | 4-Acid Digestion |
Er, Erbium (ppm) | 0.81 | 0.050 | 0.76 | 0.85 | 4-Acid Digestion |
Eu, Europium (ppm) | 0.50 | 0.06 | 0.46 | 0.55 | 4-Acid Digestion |
Fe, Iron (wt.%) | 1.96 | 0.099 | 1.92 | 2.00 | 4-Acid Digestion |
Ga, Gallium (ppm) | 8.15 | 0.562 | 7.84 | 8.46 | 4-Acid Digestion |
Gd, Gadolinium (ppm) | 1.62 | 0.103 | 1.55 | 1.68 | 4-Acid Digestion |
Hf, Hafnium (ppm) | 1.30 | 0.128 | 1.24 | 1.36 | 4-Acid Digestion |
Ho, Holmium (ppm) | 0.28 | 0.022 | 0.26 | 0.30 | 4-Acid Digestion |
In, Indium (ppm) | 0.023 | 0.003 | 0.021 | 0.024 | 4-Acid Digestion |
K, Potassium (wt.%) | 1.51 | 0.068 | 1.49 | 1.54 | 4-Acid Digestion |
La, Lanthanum (ppm) | 9.09 | 0.321 | 8.95 | 9.23 | 4-Acid Digestion |
Li, Lithium (ppm) | 40.6 | 3.27 | 39.1 | 42.2 | 4-Acid Digestion |
Lu, Lutetium (ppm) | 0.12 | 0.010 | 0.11 | 0.13 | 4-Acid Digestion |
Mg, Magnesium (wt.%) | 0.590 | 0.033 | 0.576 | 0.604 | 4-Acid Digestion |
Mn, Manganese (wt.%) | 0.059 | 0.002 | 0.058 | 0.060 | 4-Acid Digestion |
Mo, Molybdenum (ppm) | 2.83 | 0.29 | 2.72 | 2.94 | 4-Acid Digestion |
Na, Sodium (wt.%) | 0.565 | 0.039 | 0.548 | 0.582 | 4-Acid Digestion |
Nb, Niobium (ppm) | 1.78 | 0.173 | 1.70 | 1.87 | 4-Acid Digestion |
Nd, Neodymium (ppm) | 8.90 | 0.529 | 8.53 | 9.28 | 4-Acid Digestion |
Ni, Nickel (ppm) | 9.56 | 0.945 | 9.17 | 9.95 | 4-Acid Digestion |
P, Phosphorus (wt.%) | 0.042 | 0.002 | 0.041 | 0.043 | 4-Acid Digestion |
Pb, Lead (ppm) | 10.6 | 1.1 | 10.1 | 11.0 | 4-Acid Digestion |
Pr, Praseodymium (ppm) | 2.20 | 0.095 | 2.14 | 2.27 | 4-Acid Digestion |
Rb, Rubidium (ppm) | 61 | 3.3 | 60 | 63 | 4-Acid Digestion |
S, Sulphur (wt.%) | 0.573 | 0.023 | 0.563 | 0.582 | 4-Acid Digestion |
Sb, Antimony (ppm) | 2.14 | 0.202 | 2.04 | 2.23 | 4-Acid Digestion |
Sc, Scandium (ppm) | 6.85 | 0.72 | 6.55 | 7.14 | 4-Acid Digestion |
Sm, Samarium (ppm) | 1.79 | 0.101 | 1.72 | 1.87 | 4-Acid Digestion |
Sn, Tin (ppm) | 0.70 | 0.12 | 0.62 | 0.77 | 4-Acid Digestion |
Sr, Strontium (ppm) | 244 | 12 | 239 | 249 | 4-Acid Digestion |
Tb, Terbium (ppm) | 0.24 | 0.023 | 0.23 | 0.26 | 4-Acid Digestion |
Te, Tellurium (ppm) | 2.15 | 0.23 | 2.04 | 2.27 | 4-Acid Digestion |
Th, Thorium (ppm) | 2.15 | 0.198 | 2.06 | 2.24 | 4-Acid Digestion |
Ti, Titanium (wt.%) | 0.171 | 0.006 | 0.169 | 0.174 | 4-Acid Digestion |
Tl, Thallium (ppm) | 0.64 | 0.034 | 0.62 | 0.66 | 4-Acid Digestion |
Tm, Thulium (ppm) | 0.11 | 0.01 | 0.10 | 0.12 | 4-Acid Digestion |
U, Uranium (ppm) | 0.65 | 0.052 | 0.63 | 0.67 | 4-Acid Digestion |
V, Vanadium (ppm) | 62 | 2.2 | 61 | 63 | 4-Acid Digestion |
W, Tungsten (ppm) | 2.28 | 0.220 | 2.17 | 2.39 | 4-Acid Digestion |
Y, Yttrium (ppm) | 7.25 | 0.531 | 7.02 | 7.48 | 4-Acid Digestion |
Yb, Ytterbium (ppm) | 0.75 | 0.047 | 0.72 | 0.77 | 4-Acid Digestion |
Zn, Zinc (ppm) | 36.9 | 1.99 | 36.1 | 37.7 | 4-Acid Digestion |
Zr, Zirconium (ppm) | 49.6 | 3.92 | 47.9 | 51.2 | 4-Acid Digestion |
Ag, Silver (ppm) | 4.45 | 0.237 | 4.33 | 4.56 | Aqua Regia Digestion |
Al, Aluminium (wt.%) | 1.00 | 0.083 | 0.96 | 1.04 | Aqua Regia Digestion |
As, Arsenic (ppm) | 15.3 | 0.89 | 14.9 | 15.7 | Aqua Regia Digestion |
Ba, Barium (ppm) | 36.4 | 2.09 | 35.3 | 37.5 | Aqua Regia Digestion |
Be, Beryllium (ppm) | 0.50 | 0.041 | 0.49 | 0.51 | Aqua Regia Digestion |
Bi, Bismuth (ppm) | 0.30 | 0.016 | 0.29 | 0.31 | Aqua Regia Digestion |
Ca, Calcium (wt.%) | 9.78 | 0.633 | 9.48 | 10.07 | Aqua Regia Digestion |
Cd, Cadmium (ppm) | 0.14 | 0.01 | 0.13 | 0.15 | Aqua Regia Digestion |
Ce, Cerium (ppm) | 15.8 | 0.71 | 15.4 | 16.2 | Aqua Regia Digestion |
Co, Cobalt (ppm) | 7.44 | 0.376 | 7.26 | 7.62 | Aqua Regia Digestion |
Cr, Chromium (ppm) | 13.3 | 1.9 | 12.4 | 14.1 | Aqua Regia Digestion |
Cs, Cesium (ppm) | 2.32 | 0.36 | 2.11 | 2.52 | Aqua Regia Digestion |
Cu, Copper (ppm) | 72 | 2.8 | 70 | 73 | Aqua Regia Digestion |
Dy, Dysprosium (ppm) | 0.97 | 0.050 | 0.93 | 1.02 | Aqua Regia Digestion |
Er, Erbium (ppm) | 0.51 | 0.032 | 0.47 | 0.55 | Aqua Regia Digestion |
Fe, Iron (wt.%) | 1.83 | 0.087 | 1.79 | 1.86 | Aqua Regia Digestion |
Ga, Gallium (ppm) | 3.96 | 0.396 | 3.75 | 4.17 | Aqua Regia Digestion |
Gd, Gadolinium (ppm) | 1.31 | 0.030 | 1.29 | 1.33 | Aqua Regia Digestion |
Hg, Mercury (ppm) | 0.100 | 0.006 | 0.098 | 0.102 | Aqua Regia Digestion |
Ho, Holmium (ppm) | 0.19 | 0.008 | 0.19 | 0.20 | Aqua Regia Digestion |
In, Indium (ppm) | 0.018 | 0.003 | 0.017 | 0.020 | Aqua Regia Digestion |
K, Potassium (wt.%) | 0.199 | 0.022 | 0.189 | 0.209 | Aqua Regia Digestion |
La, Lanthanum (ppm) | 7.90 | 0.436 | 7.69 | 8.11 | Aqua Regia Digestion |
Li, Lithium (ppm) | 9.88 | 0.392 | 9.66 | 10.10 | Aqua Regia Digestion |
Lu, Lutetium (ppm) | 0.061 | 0.005 | 0.057 | 0.064 | Aqua Regia Digestion |
Mg, Magnesium (wt.%) | 0.516 | 0.018 | 0.508 | 0.524 | Aqua Regia Digestion |
Mn, Manganese (wt.%) | 0.057 | 0.003 | 0.056 | 0.058 | Aqua Regia Digestion |
Mo, Molybdenum (ppm) | 2.63 | 0.167 | 2.55 | 2.72 | Aqua Regia Digestion |
Na, Sodium (wt.%) | 0.061 | 0.008 | 0.056 | 0.065 | Aqua Regia Digestion |
Nd, Neodymium (ppm) | 7.64 | 0.264 | 7.40 | 7.89 | Aqua Regia Digestion |
Ni, Nickel (ppm) | 8.64 | 0.669 | 8.28 | 8.99 | Aqua Regia Digestion |
P, Phosphorus (wt.%) | 0.039 | 0.002 | 0.038 | 0.040 | Aqua Regia Digestion |
Pb, Lead (ppm) | 8.67 | 0.799 | 8.23 | 9.11 | Aqua Regia Digestion |
Pr, Praseodymium (ppm) | 1.91 | 0.078 | 1.84 | 1.98 | Aqua Regia Digestion |
Rb, Rubidium (ppm) | 9.91 | 1.40 | 9.12 | 10.70 | Aqua Regia Digestion |
S, Sulphur (wt.%) | 0.563 | 0.016 | 0.555 | 0.571 | Aqua Regia Digestion |
Sb, Antimony (ppm) | 0.43 | 0.04 | 0.40 | 0.45 | Aqua Regia Digestion |
Sc, Scandium (ppm) | 4.30 | 0.180 | 4.20 | 4.40 | Aqua Regia Digestion |
Sm, Samarium (ppm) | 1.51 | 0.067 | 1.46 | 1.57 | Aqua Regia Digestion |
Sn, Tin (ppm) | 0.39 | 0.032 | 0.37 | 0.40 | Aqua Regia Digestion |
Sr, Strontium (ppm) | 137 | 13 | 131 | 143 | Aqua Regia Digestion |
Tb, Terbium (ppm) | 0.19 | 0.005 | 0.18 | 0.19 | Aqua Regia Digestion |
Te, Tellurium (ppm) | 2.02 | 0.169 | 1.93 | 2.10 | Aqua Regia Digestion |
Th, Thorium (ppm) | 1.20 | 0.13 | 1.14 | 1.27 | Aqua Regia Digestion |
Ti, Titanium (wt.%) | 0.032 | 0.004 | 0.030 | 0.034 | Aqua Regia Digestion |
Tl, Thallium (ppm) | 0.17 | 0.02 | 0.16 | 0.18 | Aqua Regia Digestion |
U, Uranium (ppm) | 0.29 | 0.014 | 0.29 | 0.30 | Aqua Regia Digestion |
V, Vanadium (ppm) | 37.8 | 2.88 | 36.4 | 39.2 | Aqua Regia Digestion |
Y, Yttrium (ppm) | 5.28 | 0.287 | 5.15 | 5.42 | Aqua Regia Digestion |
Yb, Ytterbium (ppm) | 0.42 | 0.030 | 0.41 | 0.43 | Aqua Regia Digestion |
Zn, Zinc (ppm) | 32.9 | 2.14 | 31.9 | 33.9 | Aqua Regia Digestion |
Zr, Zirconium (ppm) | 7.40 | 1.19 | 6.76 | 8.04 | Aqua Regia Digestion |