Specifications
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CRM State:
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Matrix:
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Mineralisation:
OREAS 181 has been prepared from a blend of low and high grade Ni-Co lateritic ores sourced from the Bulong deposit located 35km east of Kalgoorlie in Western Australia. This ore formed from prolonged lateritic weathering of Archaean (Yilgarn Craton) olivine rich ultramafic/komatiite flows. Grades of >1% Ni were generated in zones of more intense weathering associated with faulting and bedrock alteration. The Ni-Co nontronitic (Fe-Ni smectite clays) siliceous ores at Bulong formed with a goethitic overprint in the upper laterite profile.
Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits High | Method |
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Ni, Nickel (ppm) | 5123 | 59 | 5091 | 5155 | Borate Fusion XRF |
Co, Cobalt (ppm) | 451 | 11 | 446 | 456 | Borate Fusion XRF |
Sc, Scandium (ppm) | 38.2 | 1.27 | 37.4 | 38.9 | Borate / Peroxide Fusion ICP |
Al2O3, Aluminium(III) oxide (wt.%) | 11.56 | 0.118 | 11.49 | 11.62 | Borate Fusion XRF |
CaO, Calcium oxide (wt.%) | 2.37 | 0.020 | 2.36 | 2.38 | Borate Fusion XRF |
Cr2O3, Chromium(III) oxide (wt.%) | 1.24 | 0.016 | 1.23 | 1.25 | Borate Fusion XRF |
Cu, Copper (ppm) | 74 | 13 | 66 | 82 | Borate Fusion XRF |
Fe2O3, Iron(III) oxide (wt.%) | 35.94 | 0.205 | 35.85 | 36.04 | Borate Fusion XRF |
K2O, Potassium oxide (wt.%) | 0.132 | 0.005 | 0.129 | 0.135 | Borate Fusion XRF |
MgO, Magnesium oxide (wt.%) | 2.05 | 0.041 | 2.03 | 2.08 | Borate Fusion XRF |
MnO, Manganese oxide (wt.%) | 0.168 | 0.005 | 0.166 | 0.171 | Borate Fusion XRF |
Na2O, Sodium oxide (wt.%) | 0.448 | 0.020 | 0.436 | 0.459 | Borate Fusion XRF |
P2O5, Phosphorus(V) oxide (wt.%) | 0.017 | 0.003 | 0.015 | 0.018 | Borate Fusion XRF |
SiO2, Silicon dioxide (wt.%) | 33.79 | 0.114 | 33.74 | 33.83 | Borate Fusion XRF |
SO3, Sulphur trioxide (wt.%) | 0.189 | 0.008 | 0.181 | 0.197 | Borate Fusion XRF |
TiO2, Titanium dioxide (wt.%) | 0.339 | 0.008 | 0.335 | 0.343 | Borate Fusion XRF |
Zn, Zinc (ppm) | 96 | 7.8 | 91 | 102 | Borate Fusion XRF |
LOI1000, Loss On Ignition @1000 °C (wt.%) | 11.26 | 0.339 | 11.06 | 11.46 | Thermogravimetry |
Al2O3, Aluminium(III) oxide (wt.%) | 11.31 | 0.352 | 11.10 | 11.52 | Borate / Peroxide Fusion ICP |
Ba, Barium (ppm) | 135 | 9 | 130 | 139 | Borate / Peroxide Fusion ICP |
CaO, Calcium oxide (wt.%) | 2.37 | 0.106 | 2.31 | 2.43 | Borate / Peroxide Fusion ICP |
Cd, Cadmium (ppm) | < 10.0 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Ce, Cerium (ppm) | 12.3 | 1.2 | 11.0 | 13.7 | Borate / Peroxide Fusion ICP |
Co, Cobalt (ppm) | 451 | 10 | 447 | 454 | Borate / Peroxide Fusion ICP |
Cr2O3, Chromium(III) oxide (wt.%) | 1.23 | 0.043 | 1.20 | 1.25 | Borate / Peroxide Fusion ICP |
Cs, Caesium (ppm) | 0.57 | 0.035 | 0.55 | 0.59 | Borate / Peroxide Fusion ICP |
Cu, Copper (ppm) | 77 | 4.4 | 74 | 80 | Borate / Peroxide Fusion ICP |
Eu, Europium (ppm) | 0.43 | 0.08 | 0.34 | 0.52 | Borate / Peroxide Fusion ICP |
Fe2O3, Iron(III) oxide (wt.%) | 35.34 | 0.895 | 34.83 | 35.86 | Borate / Peroxide Fusion ICP |
Ga, Gallium (ppm) | 10.5 | 0.79 | 9.7 | 11.2 | Borate / Peroxide Fusion ICP |
Gd, Gadolinium (ppm) | 1.35 | 0.21 | 1.12 | 1.57 | Borate / Peroxide Fusion ICP |
Hf, Hafnium (ppm) | 1.74 | 0.22 | 1.46 | 2.02 | Borate / Peroxide Fusion ICP |
Ho, Holmium (ppm) | 0.27 | 0.03 | 0.24 | 0.29 | Borate / Peroxide Fusion ICP |
K2O, Potassium oxide (wt.%) | 0.125 | 0.015 | 0.116 | 0.133 | Borate / Peroxide Fusion ICP |
La, Lanthanum (ppm) | 4.04 | 0.58 | 3.42 | 4.66 | Borate / Peroxide Fusion ICP |
Li, Lithium (ppm) | 12.3 | 1.6 | 10.7 | 13.9 | Borate / Peroxide Fusion ICP |
MgO, Magnesium oxide (wt.%) | 2.01 | 0.062 | 1.97 | 2.05 | Borate / Peroxide Fusion ICP |
MnO, Manganese oxide (wt.%) | 0.166 | 0.007 | 0.162 | 0.169 | Borate / Peroxide Fusion ICP |
Mo, Molybdenum (ppm) | < 5.00 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Na2O, Sodium oxide (wt.%) | 0.420 | 0.036 | 0.380 | 0.460 | Borate / Peroxide Fusion ICP |
Nb, Niobium (ppm) | 1.96 | 0.38 | 1.63 | 2.30 | Borate / Peroxide Fusion ICP |
Nd, Neodymium (ppm) | 5.30 | 0.53 | 4.87 | 5.72 | Borate / Peroxide Fusion ICP |
Ni, Nickel (ppm) | 5048 | 126 | 5012 | 5084 | Borate / Peroxide Fusion ICP |
Pr, Praseodymium (ppm) | 1.29 | 0.17 | 1.15 | 1.43 | Borate / Peroxide Fusion ICP |
Rb, Rubidium (ppm) | 5.61 | 0.384 | 5.38 | 5.84 | Borate / Peroxide Fusion ICP |
S, Sulphur (wt.%) | 0.071 | 0.006 | 0.067 | 0.074 | Borate / Peroxide Fusion ICP |
Sb, Antimony (ppm) | 1.19 | 0.16 | 1.10 | 1.28 | Borate / Peroxide Fusion ICP |
SiO2, Silicon dioxide (wt.%) | 33.32 | 1.050 | 32.64 | 34.01 | Borate / Peroxide Fusion ICP |
Sm, Samarium (ppm) | 1.36 | 0.22 | 1.15 | 1.57 | Borate / Peroxide Fusion ICP |
Sr, Strontium (ppm) | 87 | 5.1 | 84 | 90 | Borate / Peroxide Fusion ICP |
Tb, Terbium (ppm) | 0.22 | 0.04 | 0.20 | 0.25 | Borate / Peroxide Fusion ICP |
Th, Thorium (ppm) | 2.72 | 0.128 | 2.60 | 2.83 | Borate / Peroxide Fusion ICP |
TiO2, Titanium dioxide (wt.%) | 0.333 | 0.015 | 0.325 | 0.341 | Borate / Peroxide Fusion ICP |
U, Uranium (ppm) | 0.98 | 0.073 | 0.93 | 1.03 | Borate / Peroxide Fusion ICP |
V, Vanadium (ppm) | 146 | 15 | 135 | 157 | Borate / Peroxide Fusion ICP |
W, Tungsten (ppm) | 3.22 | 0.38 | 2.95 | 3.50 | Borate / Peroxide Fusion ICP |
Y, Yttrium (ppm) | 5.73 | 0.64 | 5.39 | 6.07 | Borate / Peroxide Fusion ICP |
Yb, Ytterbium (ppm) | 0.89 | 0.080 | 0.84 | 0.94 | Borate / Peroxide Fusion ICP |
Zn, Zinc (ppm) | 100 | 10 | 91 | 108 | Borate / Peroxide Fusion ICP |
Zr, Zirconium (ppm) | 61 | 4.9 | 57 | 66 | Borate / Peroxide Fusion ICP |
C, Carbon (wt.%) | 0.653 | 0.028 | 0.635 | 0.671 | Infrared Combustion |
S, Sulphur (wt.%) | 0.059 | 0.012 | 0.052 | 0.067 | Infrared Combustion |
SG, Specific Gravity (Unity) | 2.87 | 0.155 | 2.74 | 3.00 | Gas / Liquid Pycnometry |