OREAS 180

OREAS 180 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 Low 95% Confidence High Method
Ni, Nickel (ppm) 3093 39 3074 3111 Borate Fusion XRF
Co, Cobalt (ppm) 244 7 240 248 Borate Fusion XRF
Sc, Scandium (ppm) 41.5 1.80 40.7 42.4 Borate / Peroxide Fusion ICP
Al2O3, Aluminium(III) oxide (wt.%) 13.08 0.099 13.03 13.13 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 3.11 0.023 3.09 3.12 Borate Fusion XRF
Cr2O3, Chromium(III) oxide (wt.%) 1.30 0.021 1.29 1.32 Borate Fusion XRF
Cu, Copper (ppm) 91 14 80 102 Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 35.44 0.187 35.36 35.52 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 0.132 0.006 0.128 0.135 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 1.70 0.032 1.68 1.72 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.109 0.006 0.106 0.112 Borate Fusion XRF
Na2O, Sodium oxide (wt.%) 0.296 0.013 0.288 0.304 Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.019 0.002 0.017 0.020 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 31.97 0.174 31.88 32.06 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.364 0.010 0.358 0.370 Borate Fusion XRF
Zn, Zinc (ppm) 73 7.1 68 78 Borate Fusion XRF
LOI1000, Loss on ignition @1000°C (wt.%) 12.07 0.301 11.89 12.24 Thermogravimetry
Al2O3, Aluminium(III) oxide (wt.%) 12.71 0.325 12.53 12.89 Borate / Peroxide Fusion ICP
As, Arsenic (ppm) 25.1 7.1 16.8 33.4 Borate / Peroxide Fusion ICP
Ba, Barium (ppm) 140 7 136 144 Borate / Peroxide Fusion ICP
CaO, Calcium oxide (wt.%) 3.14 0.201 3.03 3.25 Borate / Peroxide Fusion ICP
Cd, Cadmium (ppm) < 10.0 IND IND IND Borate / Peroxide Fusion ICP
Ce, Cerium (ppm) 11.7 1.4 10.3 13.2 Borate / Peroxide Fusion ICP
Co, Cobalt (ppm) 253 9 248 258 Borate / Peroxide Fusion ICP
Cr2O3, Chromium(III) oxide (wt.%) 1.27 0.053 1.25 1.30 Borate / Peroxide Fusion ICP
Cs, Caesium (ppm) 0.62 0.053 0.60 0.65 Borate / Peroxide Fusion ICP
Cu, Copper (ppm) 90 4.1 87 92 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 0.43 0.07 0.35 0.51 Borate / Peroxide Fusion ICP
Fe2O3, Iron(III) oxide (wt.%) 35.31 1.050 34.66 35.96 Borate / Peroxide Fusion ICP
Ga, Gallium (ppm) 11.6 1.10 10.5 12.6 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 1.46 0.26 1.20 1.72 Borate / Peroxide Fusion ICP
Hf, Hafnium (ppm) 2.03 0.153 1.88 2.18 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 0.29 0.05 0.24 0.34 Borate / Peroxide Fusion ICP
K2O, Potassium oxide (wt.%) 0.123 0.023 0.108 0.138 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 4.76 0.301 4.41 5.11 Borate / Peroxide Fusion ICP
Li, Lithium (ppm) 14.7 1.9 12.7 16.6 Borate / Peroxide Fusion ICP
MgO, Magnesium oxide (wt.%) 1.69 0.072 1.64 1.73 Borate / Peroxide Fusion ICP
MnO, Manganese oxide (wt.%) 0.108 0.006 0.105 0.111 Borate / Peroxide Fusion ICP
Mo, Molybdenum (ppm) < 5.00 IND IND IND Borate / Peroxide Fusion ICP
Na2O, Sodium oxide (wt.%) 0.285 0.029 0.252 0.318 Borate / Peroxide Fusion ICP
Nb, Niobium (ppm) 2.16 0.23 1.93 2.40 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 5.65 0.390 5.39 5.90 Borate / Peroxide Fusion ICP
Ni, Nickel (ppm) 3038 76 3001 3075 Borate / Peroxide Fusion ICP
P2O5, Phosphorus(V) oxide (wt.%) 0.018 0.006 0.015 0.022 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 1.45 0.126 1.32 1.58 Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 6.35 0.500 6.11 6.59 Borate / Peroxide Fusion ICP
S, Sulphur (wt.%) 0.072 0.017 0.055 0.089 Borate / Peroxide Fusion ICP
Sb, Antimony (ppm) 1.48 0.18 1.37 1.59 Borate / Peroxide Fusion ICP
SiO2, Silicon dioxide (wt.%) 31.49 0.751 30.98 32.01 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 1.48 0.16 1.32 1.63 Borate / Peroxide Fusion ICP
Sn, Tin (ppm) < 10.0 IND IND IND Borate / Peroxide Fusion ICP
Sr, Strontium (ppm) 113 9 108 119 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 0.24 0.04 0.20 0.28 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 3.50 0.113 3.43 3.58 Borate / Peroxide Fusion ICP
TiO2, Titanium dioxide (wt.%) 0.358 0.017 0.349 0.368 Borate / Peroxide Fusion ICP
U, Uranium (ppm) 1.18 0.069 1.14 1.22 Borate / Peroxide Fusion ICP
V, Vanadium (ppm) 166 15 155 177 Borate / Peroxide Fusion ICP
W, Tungsten (ppm) 3.72 0.46 3.34 4.09 Borate / Peroxide Fusion ICP
Y, Yttrium (ppm) 6.41 0.74 6.01 6.80 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 0.95 0.11 0.88 1.02 Borate / Peroxide Fusion ICP
Zn, Zinc (ppm) 80 11 70 90 Borate / Peroxide Fusion ICP
Zr, Zirconium (ppm) 72 4.8 67 76 Borate / Peroxide Fusion ICP
C, Carbon (wt.%) 0.870 0.039 0.845 0.895 Infrared Combustion
S, Sulphur (wt.%) 0.057 0.011 0.050 0.064 Infrared Combustion
SG, Specific Gravity (Unity) 2.89 0.145 2.76 3.02 Gas / Liquid Pycnometry
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