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SKU: 600578

OREAS 73b

$5.41

(Price is for 1 piece)

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Specifications

Description

  • OREAS 73b 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 73b has been packaged under nitrogen and is available in single-use 10g units in laminated foil pouches.

    Analyte
    Certified Value
    1SD
    95% Confidence Limits Low
    95% Confidence Limits High
    Method
    Ni, Nickel (wt.%) 1.48 0.035 1.46 1.50 4-Acid Digestion
    Co, Cobalt (ppm) 240 10 235 245 4-Acid Digestion
    As, Arsenic (ppm) 293 24 281 305 4-Acid Digestion
    Al, Aluminium (wt.%) 3.77 0.039 3.74 3.80 Borate Fusion XRF
    Ca, Calcium (wt.%) 3.15 0.023 3.14 3.17 Borate Fusion XRF
    Co, Cobalt (ppm) 246 33 215 278 Borate Fusion XRF
    Cr, Chromium (ppm) 1172 61 1124 1220 Borate Fusion XRF
    Cu, Copper (ppm) 430 49 377 482 Borate Fusion XRF
    Fe, Iron (wt.%) 8.63 0.098 8.54 8.72 Borate Fusion XRF
    K, Potassium (wt.%) 0.586 0.011 0.575 0.596 Borate Fusion XRF
    Mg, Magnesium (wt.%) 11.80 0.119 11.69 11.91 Borate Fusion XRF
    Mn, Manganese (wt.%) 0.115 0.003 0.113 0.118 Borate Fusion XRF
    Na, Sodium (wt.%) 0.736 0.015 0.723 0.750 Borate Fusion XRF
    Ni, Nickel (ppm) 15044 265 14764 15325 Borate Fusion XRF
    P, Phosphorus (wt.%) 0.024 0.002 0.023 0.025 Borate Fusion XRF
    Si, Silicon (wt.%) 20.89 0.172 20.75 21.04 Borate Fusion XRF
    Ti, Titanium (wt.%) 0.191 0.004 0.187 0.194 Borate Fusion XRF
    Al, Aluminium (wt.%) 3.77 0.123 3.70 3.83 Borate / Peroxide Fusion ICP
    As, Arsenic (ppm) 301 20 291 311 Borate / Peroxide Fusion ICP
    Ba, Barium (ppm) 208 13 198 217 Borate / Peroxide Fusion ICP
    Ca, Calcium (wt.%) 3.15 0.126 3.08 3.21 Borate / Peroxide Fusion ICP
    Ce, Cerium (ppm) 28.9 2.05 27.5 30.3 Borate / Peroxide Fusion ICP
    Co, Cobalt (ppm) 252 16 243 262 Borate / Peroxide Fusion ICP
    Cr, Chromium (ppm) 1174 59 1135 1213 Borate / Peroxide Fusion ICP
    Cs, Caesium (ppm) 2.81 0.233 2.60 3.02 Borate / Peroxide Fusion ICP
    Cu, Copper (ppm) 439 30 420 459 Borate / Peroxide Fusion ICP
    Dy, Dysprosium (ppm) 2.14 0.192 1.94 2.35 Borate / Peroxide Fusion ICP
    Er, Erbium (ppm) 1.31 0.130 1.17 1.44 Borate / Peroxide Fusion ICP
    Eu, Europium (ppm) 0.62 0.047 0.58 0.66 Borate / Peroxide Fusion ICP
    Fe, Iron (wt.%) 8.74 0.282 8.57 8.91 Borate / Peroxide Fusion ICP
    Ga, Gallium (ppm) 8.85 0.249 8.64 9.06 Borate / Peroxide Fusion ICP
    Ho, Holmium (ppm) 0.45 0.05 0.39 0.50 Borate / Peroxide Fusion ICP
    K, Potassium (wt.%) 0.614 0.050 0.580 0.648 Borate / Peroxide Fusion ICP
    La, Lanthanum (ppm) 15.6 0.81 14.8 16.5 Borate / Peroxide Fusion ICP
    Mg, Magnesium (wt.%) 11.88 0.298 11.71 12.05 Borate / Peroxide Fusion ICP
    Mn, Manganese (wt.%) 0.116 0.003 0.115 0.117 Borate / Peroxide Fusion ICP
    Nb, Niobium (ppm) 3.63 0.287 3.30 3.95 Borate / Peroxide Fusion ICP
    Nd, Neodymium (ppm) 11.9 0.83 10.9 12.9 Borate / Peroxide Fusion ICP
    Ni, Nickel (ppm) 14987 449 14728 15245 Borate / Peroxide Fusion ICP
    P, Phosphorus (wt.%) 0.026 0.003 0.023 0.030 Borate / Peroxide Fusion ICP
    Pb, Lead (ppm) 16.0 2.3 13.8 18.1 Borate / Peroxide Fusion ICP
    Pr, Praseodymium (ppm) 3.37 0.36 2.98 3.76 Borate / Peroxide Fusion ICP
    Rb, Rubidium (ppm) 31.0 2.28 28.9 33.1 Borate / Peroxide Fusion ICP
    S, Sulphur (wt.%) 2.90 0.146 2.81 3.00 Borate / Peroxide Fusion ICP
    Si, Silicon (wt.%) 21.08 0.456 20.83 21.34 Borate / Peroxide Fusion ICP
    Sm, Samarium (ppm) 2.22 0.122 2.11 2.33 Borate / Peroxide Fusion ICP
    Sr, Strontium (ppm) 65 4.1 62 69 Borate / Peroxide Fusion ICP
    Tb, Terbium (ppm) 0.36 0.035 0.32 0.39 Borate / Peroxide Fusion ICP
    Th, Thorium (ppm) 6.38 0.450 6.07 6.70 Borate / Peroxide Fusion ICP
    Ti, Titanium (wt.%) 0.187 0.008 0.181 0.192 Borate / Peroxide Fusion ICP
    Tm, Thulium (ppm) 0.19 0.009 0.19 0.20 Borate / Peroxide Fusion ICP
    U, Uranium (ppm) 2.11 0.25 1.90 2.31 Borate / Peroxide Fusion ICP
    V, Vanadium (ppm) 73 6.7 68 79 Borate / Peroxide Fusion ICP
    Y, Yttrium (ppm) 11.7 0.53 11.3 12.1 Borate / Peroxide Fusion ICP
    Yb, Ytterbium (ppm) 1.21 0.107 1.09 1.33 Borate / Peroxide Fusion ICP
    Zn, Zinc (ppm) 112 12 103 121 Borate / Peroxide Fusion ICP
    Zr, Zirconium (ppm) 61 7 53 68 Borate / Peroxide Fusion ICP
    Ag, Silver (ppm) 0.371 0.046 0.347 0.395 4-Acid Digestion
    Al, Aluminium (wt.%) 3.87 0.155 3.80 3.95 4-Acid Digestion
    Ba, Barium (ppm) 205 10 200 211 4-Acid Digestion
    Bi, Bismuth (ppm) 1.13 0.15 1.07 1.19 4-Acid Digestion
    Ca, Calcium (wt.%) 3.16 0.124 3.09 3.23 4-Acid Digestion
    Cd, Cadmium (ppm) 0.41 0.04 0.39 0.43 4-Acid Digestion
    Ce, Cerium (ppm) 29.6 2.23 28.2 30.9 4-Acid Digestion
    Cs, Caesium (ppm) 3.02 0.171 2.90 3.13 4-Acid Digestion
    Cu, Copper (ppm) 447 18 439 456 4-Acid Digestion
    Fe, Iron (wt.%) 8.62 0.440 8.39 8.84 4-Acid Digestion
    Ga, Gallium (ppm) 9.34 0.735 8.79 9.89 4-Acid Digestion
    Hf, Hafnium (ppm) 1.73 0.100 1.66 1.81 4-Acid Digestion
    In, Indium (ppm) 0.058 0.005 0.053 0.063 4-Acid Digestion
    K, Potassium (wt.%) 0.621 0.030 0.605 0.637 4-Acid Digestion
    La, Lanthanum (ppm) 16.6 1.24 15.9 17.4 4-Acid Digestion
    Li, Lithium (ppm) 27.2 2.06 26.0 28.3 4-Acid Digestion
    Mg, Magnesium (wt.%) 11.72 0.575 11.41 12.03 4-Acid Digestion
    Mn, Manganese (wt.%) 0.116 0.003 0.115 0.118 4-Acid Digestion
    Na, Sodium (wt.%) 0.782 0.041 0.759 0.806 4-Acid Digestion
    Nb, Niobium (ppm) 4.13 0.326 3.95 4.32 4-Acid Digestion
    P, Phosphorus (wt.%) 0.023 0.002 0.022 0.024 4-Acid Digestion
    Pb, Lead (ppm) 17.2 1.65 16.3 18.1 4-Acid Digestion
    Rb, Rubidium (ppm) 32.6 3.13 30.7 34.5 4-Acid Digestion
    S, Sulphur (wt.%) 2.94 0.269 2.78 3.09 4-Acid Digestion
    Sb, Antimony (ppm) 1.33 0.14 1.25 1.40 4-Acid Digestion
    Sc, Scandium (ppm) 12.7 1.07 12.0 13.4 4-Acid Digestion
    Sn, Tin (ppm) 1.28 0.18 1.17 1.40 4-Acid Digestion
    Sr, Strontium (ppm) 69 3.7 66 71 4-Acid Digestion
    Ta, Tantalum (ppm) 0.31 0.031 0.30 0.33 4-Acid Digestion
    Th, Thorium (ppm) 6.94 0.337 6.75 7.13 4-Acid Digestion
    Ti, Titanium (wt.%) 0.192 0.008 0.188 0.197 4-Acid Digestion
    Tl, Thallium (ppm) 0.41 0.037 0.39 0.43 4-Acid Digestion
    U, Uranium (ppm) 2.10 0.138 2.01 2.19 4-Acid Digestion
    V, Vanadium (ppm) 74 3.8 72 76 4-Acid Digestion
    W, Tungsten (ppm) 4.62 0.434 4.45 4.80 4-Acid Digestion
    Y, Yttrium (ppm) 10.9 0.53 10.6 11.2 4-Acid Digestion
    Zn, Zinc (ppm) 114 5 111 116 4-Acid Digestion
    Zr, Zirconium (ppm) 64 5.0 61 67 4-Acid Digestion
    S, Sulphur (wt.%) 2.90 0.077 2.85 2.94 Infrared Combustion
    LOI1000, Loss On Ignition @1000 °C (wt.%) 6.43 0.278 6.20 6.66 Thermogravimetry
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