OREAS 72b

OREAS 72b is one of a suite of seven nickel sulphide CRMs prepared from high grade massive nickel sulphide ore and barren ultramafic material sourced from Xstrata Nickel’s Prospero and Tapinos Nickel mines, located in the Kathleen Valley area approximately 30km north of Leinster in Western Australia within the Agnew-Wiluna portion of the Norseman-Wiluna greenstone belt. It is a typical komatiite-associated, massive sulphide deposit representing an in-situ accumulation of massive and semi-massive primary magmatic Ni-Fe sulphides with minor by-products including Cu, Co and platinum group elements (PGE’s).

Nineteen commercial analytical laboratories participated in the program employing the following methods:

  • Lithium borate fusion with X-ray fluorescence;
  • Sodium peroxide fusion or lithium borate fusion with full ICP-OES and ICP-MS suites;
  • Four acid digestion with full ICP-OES and ICP-MS suites;
  • Infra-red combustion furnace for sulphur;
  • Thermogravimetry for Loss On Ignition at 1000 degrees Celsius;

Due to the presence of reactive sulphides OREAS 72b has been packaged under nitrogen and is available in single-use 10g units in laminated foil pouches.

Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
Ni, Nickel (wt.%) 0.686 0.025 0.673 0.699 4-Acid Digestion
Co, Cobalt (ppm) 131 5 129 134 4-Acid Digestion
As, Arsenic (ppm) 146 9 142 150 4-Acid Digestion
Al, Aluminium (wt.%) 4.75 0.073 4.69 4.81 Borate Fusion XRF
Ca, Calcium (wt.%) 2.83 0.023 2.81 2.85 Borate Fusion XRF
Co, Cobalt (ppm) 126 24 100 153 Borate Fusion XRF
Cr, Chromium (ppm) 961 38 928 994 Borate Fusion XRF
Cu, Copper (ppm) 193 28 166 220 Borate Fusion XRF
Fe, Iron (wt.%) 6.80 0.093 6.71 6.88 Borate Fusion XRF
K, Potassium (wt.%) 1.09 0.022 1.07 1.11 Borate Fusion XRF
Mg, Magnesium (wt.%) 9.61 0.099 9.52 9.70 Borate Fusion XRF
Mn, Manganese (wt.%) 0.100 0.001 0.100 0.101 Borate Fusion XRF
Na, Sodium (wt.%) 0.958 0.026 0.933 0.984 Borate Fusion XRF
Ni, Nickel (ppm) 7086 178 6923 7248 Borate Fusion XRF
P, Phosphorus (wt.%) 0.027 0.001 0.026 0.027 Borate Fusion XRF
Si, Silicon (wt.%) 23.92 0.134 23.81 24.04 Borate Fusion XRF
Ti, Titanium (wt.%) 0.213 0.004 0.209 0.216 Borate Fusion XRF
Al, Aluminium (wt.%) 4.72 0.151 4.64 4.80 Borate / Peroxide Fusion ICP
As, Arsenic (ppm) 151 12 147 155 Borate / Peroxide Fusion ICP
Ba, Barium (ppm) 335 17 323 346 Borate / Peroxide Fusion ICP
Ca, Calcium (wt.%) 2.82 0.079 2.78 2.86 Borate / Peroxide Fusion ICP
Ce, Cerium (ppm) 43.5 3.83 39.5 47.4 Borate / Peroxide Fusion ICP
Co, Cobalt (ppm) 138 8 133 143 Borate / Peroxide Fusion ICP
Cr, Chromium (ppm) 974 56 936 1011 Borate / Peroxide Fusion ICP
Cs, Caesium (ppm) 3.16 0.252 2.93 3.38 Borate / Peroxide Fusion ICP
Cu, Copper (ppm) 219 21 208 231 Borate / Peroxide Fusion ICP
Dy, Dysprosium (ppm) 2.74 0.179 2.55 2.92 Borate / Peroxide Fusion ICP
Er, Erbium (ppm) 1.69 0.142 1.56 1.82 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 0.74 0.039 0.70 0.77 Borate / Peroxide Fusion ICP
Fe, Iron (wt.%) 6.97 0.270 6.80 7.13 Borate / Peroxide Fusion ICP
Ga, Gallium (ppm) 11.1 0.56 10.6 11.7 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 2.75 0.31 2.42 3.08 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 0.56 0.034 0.53 0.59 Borate / Peroxide Fusion ICP
K, Potassium (wt.%) 1.13 0.045 1.10 1.15 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 24.2 1.79 22.3 26.2 Borate / Peroxide Fusion ICP
Mg, Magnesium (wt.%) 9.66 0.341 9.46 9.86 Borate / Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.101 0.003 0.099 0.103 Borate / Peroxide Fusion ICP
Nb, Niobium (ppm) 5.48 0.333 5.17 5.80 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 16.9 1.64 15.2 18.7 Borate / Peroxide Fusion ICP
Ni, Nickel (ppm) 7050 253 6898 7202 Borate / Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.029 0.004 0.024 0.033 Borate / Peroxide Fusion ICP
Pb, Lead (ppm) 14.1 2.2 12.6 15.7 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 4.79 0.478 4.26 5.31 Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 47.2 3.76 43.7 50.8 Borate / Peroxide Fusion ICP
S, Sulphur (wt.%) 1.48 0.053 1.45 1.51 Borate / Peroxide Fusion ICP
Si, Silicon (wt.%) 24.02 0.405 23.85 24.20 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 2.99 0.221 2.79 3.20 Borate / Peroxide Fusion ICP
Sr, Strontium (ppm) 61 4.2 58 65 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 0.46 0.05 0.42 0.50 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 10.3 0.43 9.9 10.6 Borate / Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.208 0.007 0.205 0.212 Borate / Peroxide Fusion ICP
Tm, Thulium (ppm) 0.26 0.04 0.23 0.29 Borate / Peroxide Fusion ICP
U, Uranium (ppm) 4.76 0.48 4.38 5.15 Borate / Peroxide Fusion ICP
V, Vanadium (ppm) 77 15 64 90 Borate / Peroxide Fusion ICP
Y, Yttrium (ppm) 15.3 0.71 14.8 15.8 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 1.64 0.121 1.52 1.77 Borate / Peroxide Fusion ICP
Zn, Zinc (ppm) 98 12 90 106 Borate / Peroxide Fusion ICP
Zr, Zirconium (ppm) 86 9 78 95 Borate / Peroxide Fusion ICP
Ag, Silver (ppm) 0.230 0.029 0.209 0.252 4-Acid Digestion
Al, Aluminium (wt.%) 4.79 0.187 4.70 4.88 4-Acid Digestion
Ba, Barium (ppm) 330 10 325 335 4-Acid Digestion
Be, Beryllium (ppm) 1.02 0.14 0.91 1.13 4-Acid Digestion
Bi, Bismuth (ppm) 0.68 0.08 0.65 0.71 4-Acid Digestion
Ca, Calcium (wt.%) 2.79 0.128 2.73 2.86 4-Acid Digestion
Cd, Cadmium (ppm) 0.31 0.05 0.28 0.34 4-Acid Digestion
Ce, Cerium (ppm) 43.6 3.42 41.6 45.7 4-Acid Digestion
Cs, Caesium (ppm) 3.37 0.211 3.23 3.50 4-Acid Digestion
Cu, Copper (ppm) 222 8 218 226 4-Acid Digestion
Fe, Iron (wt.%) 6.84 0.335 6.67 7.02 4-Acid Digestion
Ga, Gallium (ppm) 11.7 1.10 10.9 12.5 4-Acid Digestion
Hf, Hafnium (ppm) 2.51 0.153 2.42 2.60 4-Acid Digestion
In, Indium (ppm) 0.049 0.005 0.044 0.054 4-Acid Digestion
K, Potassium (wt.%) 1.14 0.048 1.12 1.16 4-Acid Digestion
La, Lanthanum (ppm) 24.4 2.25 23.0 25.8 4-Acid Digestion
Li, Lithium (ppm) 33.3 2.67 31.7 35.0 4-Acid Digestion
Mg, Magnesium (wt.%) 9.59 0.462 9.35 9.83 4-Acid Digestion
Mn, Manganese (wt.%) 0.101 0.004 0.099 0.102 4-Acid Digestion
Mo, Molybdenum (ppm) 4.01 0.47 3.81 4.20 4-Acid Digestion
Na, Sodium (wt.%) 1.01 0.066 0.97 1.04 4-Acid Digestion
Nb, Niobium (ppm) 5.50 0.452 5.24 5.75 4-Acid Digestion
P, Phosphorus (wt.%) 0.026 0.002 0.025 0.027 4-Acid Digestion
Pb, Lead (ppm) 14.9 1.7 13.9 15.8 4-Acid Digestion
Rb, Rubidium (ppm) 51 4.5 48 54 4-Acid Digestion
S, Sulphur (wt.%) 1.49 0.116 1.42 1.55 4-Acid Digestion
Sb, Antimony (ppm) 0.87 0.086 0.82 0.91 4-Acid Digestion
Sc, Scandium (ppm) 12.8 1.17 12.1 13.6 4-Acid Digestion
Sn, Tin (ppm) 1.43 0.140 1.34 1.51 4-Acid Digestion
Sr, Strontium (ppm) 64 4.4 61 66 4-Acid Digestion
Ta, Tantalum (ppm) 0.43 0.040 0.41 0.45 4-Acid Digestion
Tb, Terbium (ppm) 0.44 0.06 0.38 0.51 4-Acid Digestion
Te, Tellurium (ppm) 0.092 0.018 0.081 0.104 4-Acid Digestion
Th, Thorium (ppm) 11.3 0.45 11.0 11.6 4-Acid Digestion
Ti, Titanium (wt.%) 0.216 0.007 0.211 0.220 4-Acid Digestion
Tl, Thallium (ppm) 0.35 0.032 0.33 0.37 4-Acid Digestion
U, Uranium (ppm) 4.68 0.306 4.49 4.87 4-Acid Digestion
V, Vanadium (ppm) 74 2.7 72 75 4-Acid Digestion
W, Tungsten (ppm) 4.02 0.364 3.84 4.19 4-Acid Digestion
Y, Yttrium (ppm) 12.8 0.99 12.3 13.3 4-Acid Digestion
Zn, Zinc (ppm) 99 6.7 95 103 4-Acid Digestion
Zr, Zirconium (ppm) 88 6.4 85 92 4-Acid Digestion
S, Sulphur (wt.%) 1.44 0.079 1.39 1.48 Infrared Combustion
LOI1000, Loss On Ignition @1000°C (wt.%) 5.12 0.291 4.89 5.35 Thermogravimetry
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Pricing & Stock
  • Pack Size
    Price
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  • 10g Sachet
    $3.60
    26,000 +
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