OREAS 755

OREAS 755 has been prepared from a blend of spodumene concentrate derived from the processing of lithium pegmatite ores sourced from the Greenbushes area of southwest Western Australia, Londonderry lithium-pegmatite ore (containing elevated levels of lithium, rubidium, cesium, tin and tantalum), barren granodiorite and quartz. The barren granodiorite was sourced from the mafic, S-Type, Late Devonian Bulla Granodiorite complex located in northern Melbourne, Australia. The certification program includes:

  • Sodium peroxide fusion with full suite elemental package by ICP-OES and/or MS finish
  • Lithium borate fusion whole rock analysis package by X-ray fluorescence
  • Thermogravimetry: Loss on Ignition (LOI) at 1000°C
  • 4-acid digestion for full suite elemental package by ICP-OES and MS finish
Analyte Certified Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Li, Lithium (wt.%) 0.109 0.007 0.106 0.113 Borate / Peroxide Fusion ICP
Cs, Caesium (ppm) 20.3 0.70 19.7 20.9 Borate / Peroxide Fusion ICP
Ta, Tantalum (ppm) 30.2 1.25 28.7 31.6 Borate / Peroxide Fusion ICP
Ag, Silver (ppm) 0.056 0.010 0.043 0.069 4-Acid Digestion
Al, Aluminium (wt.%) 2.71 0.098 2.65 2.77 4-Acid Digestion
As, Arsenic (ppm) 2.17 0.43 1.67 2.67 4-Acid Digestion
Ba, Barium (ppm) 289 9 281 298 4-Acid Digestion
Be, Beryllium (ppm) 1.89 0.133 1.79 2.00 4-Acid Digestion
Bi, Bismuth (ppm) 0.30 0.05 0.21 0.39 4-Acid Digestion
Ca, Calcium (wt.%) 0.481 0.016 0.468 0.493 4-Acid Digestion
Cd, Cadmium (ppm) 0.064 0.018 0.039 0.089 4-Acid Digestion
Ce, Cerium (ppm) 23.6 1.30 22.3 24.9 4-Acid Digestion
Co, Cobalt (ppm) 2.29 0.128 2.16 2.43 4-Acid Digestion
Cr, Chromium (ppm) 13.4 2.4 11.9 14.9 4-Acid Digestion
Cs, Caesium (ppm) 20.4 0.75 19.6 21.2 4-Acid Digestion
Cu, Copper (ppm) 7.76 0.754 7.18 8.33 4-Acid Digestion
Dy, Dysprosium (ppm) 1.18 0.060 1.08 1.28 4-Acid Digestion
Er, Erbium (ppm) 0.48 0.038 0.44 0.52 4-Acid Digestion
Eu, Europium (ppm) 0.42 0.024 0.38 0.45 4-Acid Digestion
Fe2O3, Iron(III) oxide (wt.%) 1.19 0.033 1.16 1.22 4-Acid Digestion
Ga, Gallium (ppm) 10.4 0.56 10.0 10.7 4-Acid Digestion
Gd, Gadolinium (ppm) 1.81 0.086 1.68 1.93 4-Acid Digestion
Hf, Hafnium (ppm) 0.86 0.076 0.76 0.95 4-Acid Digestion
Ho, Holmium (ppm) 0.19 0.011 0.17 0.21 4-Acid Digestion
In, Indium (ppm) 0.019 0.004 0.014 0.025 4-Acid Digestion
K, Potassium (wt.%) 0.875 0.029 0.852 0.897 4-Acid Digestion
La, Lanthanum (ppm) 11.6 0.71 10.9 12.2 4-Acid Digestion
Li, Lithium (wt.%) 0.110 0.004 0.107 0.112 4-Acid Digestion
Li2O, Lithium oxide (wt.%) 0.236 0.009 0.230 0.242 4-Acid Digestion
Lu, Lutetium (ppm) 0.051 0.006 0.040 0.061 4-Acid Digestion
Mg, Magnesium (wt.%) 0.209 0.008 0.200 0.218 4-Acid Digestion
Mn, Manganese (wt.%) 0.024 0.001 0.023 0.025 4-Acid Digestion
Mo, Molybdenum (ppm) 1.06 0.11 0.92 1.21 4-Acid Digestion
Na, Sodium (wt.%) 0.581 0.023 0.561 0.601 4-Acid Digestion
Nb, Niobium (ppm) 14.0 1.04 13.2 14.8 4-Acid Digestion
Nd, Neodymium (ppm) 10.8 0.38 9.9 11.6 4-Acid Digestion
Ni, Nickel (ppm) 5.79 0.243 5.46 6.11 4-Acid Digestion
P, Phosphorus (wt.%) 0.028 0.001 0.027 0.030 4-Acid Digestion
Pb, Lead (ppm) 7.58 0.406 7.23 7.93 4-Acid Digestion
Pr, Praseodymium (ppm) 2.85 0.100 2.63 3.06 4-Acid Digestion
Rb, Rubidium (ppm) 178 13 171 185 4-Acid Digestion
Re, Rhenium (ppm) < 0.002 IND IND IND 4-Acid Digestion
S, Sulphur (wt.%) 0.035 0.004 0.029 0.042 4-Acid Digestion
Sb, Antimony (ppm) 0.29 0.028 0.26 0.33 4-Acid Digestion
Sc, Scandium (ppm) 2.48 0.145 2.37 2.58 4-Acid Digestion
Sm, Samarium (ppm) 2.20 0.080 2.04 2.35 4-Acid Digestion
Sn, Tin (ppm) 12.5 0.61 11.9 13.1 4-Acid Digestion
Sr, Strontium (ppm) 45.7 1.35 44.3 47.1 4-Acid Digestion
Ta, Tantalum (ppm) 23.5 7.0 20.0 27.0 4-Acid Digestion
Tb, Terbium (ppm) 0.25 0.017 0.23 0.27 4-Acid Digestion
Th, Thorium (ppm) 4.79 0.320 4.46 5.12 4-Acid Digestion
Ti, Titanium (wt.%) 0.120 0.006 0.117 0.123 4-Acid Digestion
Tl, Thallium (ppm) 1.17 0.053 1.13 1.21 4-Acid Digestion
Tm, Thulium (ppm) 0.058 0.008 0.045 0.071 4-Acid Digestion
U, Uranium (ppm) 1.48 0.15 1.29 1.67 4-Acid Digestion
V, Vanadium (ppm) 18.2 0.89 17.3 19.0 4-Acid Digestion
W, Tungsten (ppm) 3.90 0.315 3.49 4.32 4-Acid Digestion
Y, Yttrium (ppm) 4.93 0.283 4.70 5.16 4-Acid Digestion
Yb, Ytterbium (ppm) 0.39 0.024 0.35 0.43 4-Acid Digestion
Zn, Zinc (ppm) 39.3 2.17 37.5 41.2 4-Acid Digestion
Zr, Zirconium (ppm) 21.9 1.36 20.5 23.3 4-Acid Digestion
Al, Aluminium (wt.%) 2.76 0.067 2.71 2.80 Borate / Peroxide Fusion ICP
Ba, Barium (ppm) 292 8 282 301 Borate / Peroxide Fusion ICP
Be, Beryllium (ppm) 2.01 0.099 1.91 2.11 Borate / Peroxide Fusion ICP
Bi, Bismuth (ppm) 0.40 0.11 0.15 0.64 Borate / Peroxide Fusion ICP
Ca, Calcium (wt.%) 0.470 0.034 0.442 0.498 Borate / Peroxide Fusion ICP
Ce, Cerium (ppm) 23.3 1.18 21.9 24.8 Borate / Peroxide Fusion ICP
Co, Cobalt (ppm) 2.53 0.45 1.96 3.09 Borate / Peroxide Fusion ICP
Dy, Dysprosium (ppm) 1.75 0.126 1.58 1.92 Borate / Peroxide Fusion ICP
Er, Erbium (ppm) 0.93 0.076 0.81 1.04 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 0.40 0.031 0.36 0.44 Borate / Peroxide Fusion ICP
Fe2O3, Iron(III) oxide (wt.%) 1.19 0.046 1.16 1.23 Borate / Peroxide Fusion ICP
Ga, Gallium (ppm) 10.6 0.74 9.7 11.5 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 2.10 0.142 1.84 2.36 Borate / Peroxide Fusion ICP
Ge, Germanium (ppm) 1.15 0.32 0.73 1.58 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 0.33 0.025 0.29 0.37 Borate / Peroxide Fusion ICP
In, Indium (ppm) < 0.20 IND IND IND Borate / Peroxide Fusion ICP
K, Potassium (wt.%) 0.904 0.028 0.882 0.927 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 11.5 0.63 10.9 12.0 Borate / Peroxide Fusion ICP
Li2O, Lithium oxide (wt.%) 0.235 0.014 0.227 0.243 Borate / Peroxide Fusion ICP
Lu, Lutetium (ppm) 0.13 0.012 0.10 0.16 Borate / Peroxide Fusion ICP
Mg, Magnesium (wt.%) 0.205 0.014 0.195 0.214 Borate / Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.024 0.001 0.023 0.024 Borate / Peroxide Fusion ICP
Nb, Niobium (ppm) 14.7 0.64 13.9 15.4 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 10.3 0.46 9.4 11.1 Borate / Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.029 0.003 0.028 0.030 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 2.76 0.182 2.50 3.02 Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 173 10 164 182 Borate / Peroxide Fusion ICP
Re, Rhenium (ppm) < 0.10 IND IND IND Borate / Peroxide Fusion ICP
Si, Silicon (wt.%) 42.24 1.519 41.23 43.25 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 2.26 0.162 2.04 2.48 Borate / Peroxide Fusion ICP
Sn, Tin (ppm) 18.6 2.5 16.7 20.5 Borate / Peroxide Fusion ICP
Sr, Strontium (ppm) 48.6 4.42 44.8 52.3 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 0.31 0.023 0.27 0.34 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 4.83 0.226 4.52 5.14 Borate / Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.122 0.007 0.116 0.128 Borate / Peroxide Fusion ICP
Tl, Thallium (ppm) 1.18 0.078 1.07 1.28 Borate / Peroxide Fusion ICP
Tm, Thulium (ppm) 0.13 0.012 0.11 0.16 Borate / Peroxide Fusion ICP
U, Uranium (ppm) 1.64 0.18 1.32 1.96 Borate / Peroxide Fusion ICP
V, Vanadium (ppm) 18.6 2.2 16.7 20.6 Borate / Peroxide Fusion ICP
W, Tungsten (ppm) 4.08 0.48 3.31 4.85 Borate / Peroxide Fusion ICP
Y, Yttrium (ppm) 9.38 0.603 8.50 10.25 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 0.85 0.10 0.71 0.99 Borate / Peroxide Fusion ICP
Zn, Zinc (ppm) 37.0 5.8 29.8 44.2 Borate / Peroxide Fusion ICP
Al2O3, Aluminium(III) oxide (wt.%) 5.27 0.072 5.23 5.32 Borate Fusion XRF
BaO, Barium oxide (ppm) 306 40 242 369 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 0.662 0.020 0.651 0.674 Borate Fusion XRF
Cr2O3, Chromium(III) oxide (ppm) < 100 IND IND IND Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 1.20 0.024 1.18 1.22 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 1.06 0.015 1.05 1.07 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 0.346 0.014 0.334 0.357 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.030 0.004 0.029 0.032 Borate Fusion XRF
Na2O, Sodium oxide (wt.%) 0.782 0.023 0.757 0.807 Borate Fusion XRF
Nb, Niobium (ppm) < 50 IND IND IND Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.062 0.007 0.056 0.068 Borate Fusion XRF
Rb, Rubidium (ppm) 149 27 100 197 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 89.57 0.653 89.01 90.13 Borate Fusion XRF
SO3, Sulphur trioxide (wt.%) 0.080 0.015 0.068 0.093 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.202 0.009 0.195 0.209 Borate Fusion XRF
Zr, Zirconium (ppm) 95 5.3 86 104 Borate Fusion XRF
LOI1000, Loss On Ignition @1000 °C (wt.%) 0.440 0.114 0.362 0.519 Thermogravimetry
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