OREAS 754

OREAS 754 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.%) 0.056 0.002 0.054 0.057 Borate / Peroxide Fusion ICP
Cs, Caesium (ppm) 12.3 0.51 11.7 12.9 Borate / Peroxide Fusion ICP
Ta, Tantalum (ppm) 15.1 0.68 14.2 15.9 Borate / Peroxide Fusion ICP
Ag, Silver (ppm) 0.047 0.010 0.033 0.060 4-Acid Digestion
Al, Aluminium (wt.%) 2.52 0.100 2.44 2.60 4-Acid Digestion
As, Arsenic (ppm) 2.13 0.41 1.50 2.75 4-Acid Digestion
Ba, Barium (ppm) 299 10 290 309 4-Acid Digestion
Be, Beryllium (ppm) 1.33 0.077 1.25 1.41 4-Acid Digestion
Bi, Bismuth (ppm) 0.29 0.05 0.22 0.36 4-Acid Digestion
Ca, Calcium (wt.%) 0.498 0.014 0.483 0.513 4-Acid Digestion
Cd, Cadmium (ppm) 0.065 0.012 0.047 0.084 4-Acid Digestion
Ce, Cerium (ppm) 25.3 1.69 23.8 26.8 4-Acid Digestion
Co, Cobalt (ppm) 2.39 0.114 2.25 2.54 4-Acid Digestion
Cr, Chromium (ppm) 13.9 2.3 12.3 15.5 4-Acid Digestion
Cs, Caesium (ppm) 12.1 0.41 11.7 12.5 4-Acid Digestion
Cu, Copper (ppm) 7.62 0.95 6.91 8.33 4-Acid Digestion
Dy, Dysprosium (ppm) 1.27 0.072 1.18 1.36 4-Acid Digestion
Er, Erbium (ppm) 0.50 0.035 0.46 0.54 4-Acid Digestion
Eu, Europium (ppm) 0.43 0.022 0.39 0.46 4-Acid Digestion
Fe2O3, Iron(III) oxide (wt.%) 1.22 0.042 1.19 1.25 4-Acid Digestion
Ga, Gallium (ppm) 8.31 0.332 8.00 8.62 4-Acid Digestion
Gd, Gadolinium (ppm) 1.94 0.098 1.80 2.09 4-Acid Digestion
Hf, Hafnium (ppm) 0.87 0.072 0.79 0.96 4-Acid Digestion
Ho, Holmium (ppm) 0.20 0.011 0.18 0.22 4-Acid Digestion
In, Indium (ppm) 0.020 0.002 0.017 0.023 4-Acid Digestion
K, Potassium (wt.%) 0.870 0.027 0.844 0.896 4-Acid Digestion
La, Lanthanum (ppm) 12.5 0.77 11.7 13.3 4-Acid Digestion
Li, Lithium (wt.%) 0.055 0.002 0.053 0.057 4-Acid Digestion
Li2O, Lithium oxide (wt.%) 0.118 0.004 0.114 0.122 4-Acid Digestion
Lu, Lutetium (ppm) 0.056 0.007 0.044 0.068 4-Acid Digestion
Mg, Magnesium (wt.%) 0.214 0.009 0.206 0.221 4-Acid Digestion
Mn, Manganese (wt.%) 0.018 0.001 0.017 0.018 4-Acid Digestion
Mo, Molybdenum (ppm) 0.95 0.081 0.85 1.06 4-Acid Digestion
Na, Sodium (wt.%) 0.589 0.027 0.571 0.608 4-Acid Digestion
Nb, Niobium (ppm) 9.33 0.639 8.85 9.81 4-Acid Digestion
Nd, Neodymium (ppm) 11.6 0.72 10.9 12.3 4-Acid Digestion
Ni, Nickel (ppm) 5.93 0.337 5.56 6.29 4-Acid Digestion
P, Phosphorus (wt.%) 0.027 0.001 0.026 0.028 4-Acid Digestion
Pb, Lead (ppm) 7.80 0.392 7.41 8.19 4-Acid Digestion
Pr, Praseodymium (ppm) 3.02 0.164 2.84 3.20 4-Acid Digestion
Rb, Rubidium (ppm) 116 7 111 120 4-Acid Digestion
Re, Rhenium (ppm) < 0.002 IND IND IND 4-Acid Digestion
S, Sulphur (wt.%) 0.037 0.005 0.035 0.040 4-Acid Digestion
Sb, Antimony (ppm) 0.31 0.022 0.28 0.34 4-Acid Digestion
Sc, Scandium (ppm) 2.60 0.140 2.46 2.73 4-Acid Digestion
Sm, Samarium (ppm) 2.33 0.175 2.13 2.53 4-Acid Digestion
Sn, Tin (ppm) 7.04 0.421 6.65 7.43 4-Acid Digestion
Sr, Strontium (ppm) 46.1 1.26 44.8 47.4 4-Acid Digestion
Ta, Tantalum (ppm) 14.3 1.23 13.3 15.3 4-Acid Digestion
Tb, Terbium (ppm) 0.25 0.03 0.23 0.28 4-Acid Digestion
Te, Tellurium (ppm) < 0.050 IND IND IND 4-Acid Digestion
Th, Thorium (ppm) 5.12 0.382 4.82 5.42 4-Acid Digestion
Ti, Titanium (wt.%) 0.134 0.004 0.128 0.139 4-Acid Digestion
Tl, Thallium (ppm) 0.77 0.044 0.73 0.80 4-Acid Digestion
Tm, Thulium (ppm) 0.061 0.008 0.046 0.076 4-Acid Digestion
U, Uranium (ppm) 1.42 0.137 1.19 1.65 4-Acid Digestion
V, Vanadium (ppm) 19.1 0.71 18.2 19.9 4-Acid Digestion
W, Tungsten (ppm) 4.12 0.41 3.48 4.76 4-Acid Digestion
Y, Yttrium (ppm) 5.23 0.370 4.96 5.51 4-Acid Digestion
Yb, Ytterbium (ppm) 0.42 0.012 0.39 0.44 4-Acid Digestion
Zn, Zinc (ppm) 32.0 1.32 30.6 33.3 4-Acid Digestion
Zr, Zirconium (ppm) 25.2 1.89 23.4 27.0 4-Acid Digestion
Al, Aluminium (wt.%) 2.56 0.053 2.48 2.64 Borate / Peroxide Fusion ICP
Ba, Barium (ppm) 301 12 291 311 Borate / Peroxide Fusion ICP
Bi, Bismuth (ppm) 0.32 0.09 0.14 0.49 Borate / Peroxide Fusion ICP
Ca, Calcium (wt.%) 0.496 0.033 0.474 0.519 Borate / Peroxide Fusion ICP
Ce, Cerium (ppm) 24.9 1.81 23.1 26.8 Borate / Peroxide Fusion ICP
Co, Cobalt (ppm) 2.66 0.56 1.93 3.38 Borate / Peroxide Fusion ICP
Cu, Copper (ppm) 11.0 3.1 6.0 15.9 Borate / Peroxide Fusion ICP
Dy, Dysprosium (ppm) 1.90 0.163 1.68 2.12 Borate / Peroxide Fusion ICP
Er, Erbium (ppm) 0.99 0.082 0.85 1.13 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 0.42 0.05 0.36 0.47 Borate / Peroxide Fusion ICP
Fe2O3, Iron(III) oxide (wt.%) 1.24 0.026 1.20 1.28 Borate / Peroxide Fusion ICP
Ga, Gallium (ppm) 8.52 0.634 7.93 9.12 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 2.17 0.172 1.95 2.39 Borate / Peroxide Fusion ICP
Ge, Germanium (ppm) 1.13 0.32 0.78 1.49 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 0.34 0.03 0.30 0.39 Borate / Peroxide Fusion ICP
In, Indium (ppm) < 0.20 IND IND IND Borate / Peroxide Fusion ICP
K, Potassium (wt.%) 0.890 0.038 0.855 0.925 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 12.4 0.84 11.5 13.3 Borate / Peroxide Fusion ICP
Li2O, Lithium oxide (wt.%) 0.120 0.005 0.116 0.124 Borate / Peroxide Fusion ICP
Lu, Lutetium (ppm) 0.14 0.02 0.12 0.17 Borate / Peroxide Fusion ICP
Mg, Magnesium (wt.%) 0.216 0.012 0.206 0.225 Borate / Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.018 0.002 0.017 0.019 Borate / Peroxide Fusion ICP
Nb, Niobium (ppm) 10.1 1.2 8.9 11.3 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 11.5 0.97 10.6 12.5 Borate / Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.028 0.005 0.024 0.031 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 2.97 0.242 2.71 3.23 Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 116 9 109 123 Borate / Peroxide Fusion ICP
Re, Rhenium (ppm) < 0.10 IND IND IND Borate / Peroxide Fusion ICP
Si, Silicon (wt.%) 42.06 1.004 41.15 42.98 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 2.36 0.212 2.15 2.57 Borate / Peroxide Fusion ICP
Sn, Tin (ppm) 11.1 2.0 9.6 12.7 Borate / Peroxide Fusion ICP
Sr, Strontium (ppm) 48.5 4.04 45.5 51.6 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 0.33 0.032 0.29 0.36 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 5.12 0.251 4.76 5.49 Borate / Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.137 0.007 0.129 0.146 Borate / Peroxide Fusion ICP
Tl, Thallium (ppm) 0.78 0.060 0.70 0.86 Borate / Peroxide Fusion ICP
Tm, Thulium (ppm) 0.14 0.02 0.12 0.17 Borate / Peroxide Fusion ICP
U, Uranium (ppm) 1.65 0.26 1.34 1.96 Borate / Peroxide Fusion ICP
V, Vanadium (ppm) 19.8 1.31 18.2 21.3 Borate / Peroxide Fusion ICP
W, Tungsten (ppm) 4.46 0.93 2.52 6.41 Borate / Peroxide Fusion ICP
Y, Yttrium (ppm) 9.55 1.07 8.64 10.45 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 0.93 0.11 0.77 1.08 Borate / Peroxide Fusion ICP
Zn, Zinc (ppm) 32.2 6.1 23.7 40.6 Borate / Peroxide Fusion ICP
Al2O3, Aluminium(III) oxide (wt.%) 4.90 0.086 4.83 4.97 Borate Fusion XRF
BaO, Barium oxide (ppm) 315 39 253 378 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 0.685 0.019 0.671 0.698 Borate Fusion XRF
Cr2O3, Chromium(III) oxide (ppm) < 100 IND IND IND Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 1.24 0.019 1.22 1.25 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 1.06 0.019 1.04 1.07 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 0.359 0.019 0.342 0.376 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.023 0.004 0.021 0.025 Borate Fusion XRF
Na2O, Sodium oxide (wt.%) 0.795 0.024 0.777 0.813 Borate Fusion XRF
Nb, Niobium (ppm) < 50 IND IND IND Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.059 0.006 0.053 0.065 Borate Fusion XRF
Rb, Rubidium (ppm) 94 24 50 139 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 89.88 0.523 89.38 90.38 Borate Fusion XRF
SO3, Sulphur trioxide (wt.%) 0.085 0.015 0.073 0.096 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.228 0.008 0.219 0.237 Borate Fusion XRF
Zr, Zirconium (ppm) 112 32 79 146 Borate Fusion XRF
LOI1000, Loss On Ignition @1000 °C (wt.%) 0.408 0.093 0.326 0.491 Thermogravimetry
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