OREAS 147

OREAS 147 is a certified reference material (CRM) prepared from spodumene-rich pegmatite ore blended with granodiorite and with minor additions of Sn oxide ore and Nb concentrate. The pegmatite was sourced from the Greenbushes Mine located just south of the town of Greenbushes in the south-western corner of Western Australia. Sn lateritic ore material was sourced from the Doradilla Project located in north central NSW and the Nb concentrate was sourced from Anglo American Brasil Catalão’s niobium mine in Goiás, Brazil.

OREAS 147 is one of three CRMs ranging 0.49 – 2.2% L2O and contains 114 certified values (and 59 indicative values) including majors and traces by fusion XRF, fusion ICP and 4-acid digestion.

 

Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
Li2O, Lithium oxide (wt.%) 0.488 0.023 0.477 0.500 Peroxide Fusion ICP
Li, Lithium (wt.%) 0.227 0.011 0.221 0.232 Peroxide Fusion ICP
Nb, Niobium (wt.%) 0.115 0.007 0.111 0.118 Peroxide Fusion ICP
Al, Aluminium (wt.%) 5.04 0.111 4.98 5.09 Peroxide Fusion ICP
As, Arsenic (ppm) 35.9 3.37 33.4 38.5 Peroxide Fusion ICP
Ba, Barium (ppm) 1956 106 1891 2020 Peroxide Fusion ICP
Be, Beryllium (ppm) 36.1 4.8 32.9 39.4 Peroxide Fusion ICP
Bi, Bismuth (ppm) 12.6 1.00 11.7 13.5 Peroxide Fusion ICP
Ca, Calcium (wt.%) 1.12 0.053 1.10 1.14 Peroxide Fusion ICP
Ce, Cerium (ppm) 1198 73 1142 1253 Peroxide Fusion ICP
Cr, Chromium (ppm) 68 7 63 74 Peroxide Fusion ICP
Cs, Caesium (ppm) 234 11 226 242 Peroxide Fusion ICP
Cu, Copper (ppm) 300 16 289 311 Peroxide Fusion ICP
Dy, Dysprosium (ppm) 8.52 0.657 8.07 8.97 Peroxide Fusion ICP
Er, Erbium (ppm) 2.79 0.276 2.60 2.98 Peroxide Fusion ICP
Eu, Europium (ppm) 10.2 0.59 9.8 10.6 Peroxide Fusion ICP
Fe, Iron (wt.%) 3.27 0.085 3.23 3.31 Peroxide Fusion ICP
Ga, Gallium (ppm) 22.1 1.92 19.8 24.3 Peroxide Fusion ICP
Gd, Gadolinium (ppm) 21.8 0.86 21.2 22.5 Peroxide Fusion ICP
Hf, Hafnium (ppm) 5.45 0.84 4.54 6.35 Peroxide Fusion ICP
Ho, Holmium (ppm) 1.33 0.18 1.20 1.46 Peroxide Fusion ICP
In, Indium (ppm) 2.85 0.183 2.71 2.99 Peroxide Fusion ICP
K, Potassium (wt.%) 1.64 0.059 1.62 1.66 Peroxide Fusion ICP
La, Lanthanum (ppm) 698 27 676 720 Peroxide Fusion ICP
Mg, Magnesium (wt.%) 0.549 0.024 0.538 0.560 Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.039 0.001 0.039 0.040 Peroxide Fusion ICP
Mo, Molybdenum (ppm) 9.60 1.47 8.48 10.72 Peroxide Fusion ICP
Nd, Neodymium (ppm) 379 19 365 393 Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.156 0.009 0.151 0.160 Peroxide Fusion ICP
Pr, Praseodymium (ppm) 122 3 120 123 Peroxide Fusion ICP
Rb, Rubidium (ppm) 1184 94 1109 1260 Peroxide Fusion ICP
Sb, Antimony (ppm) 10.5 0.86 9.9 11.1 Peroxide Fusion ICP
Si, Silicon (wt.%) 35.58 0.779 35.01 36.15 Peroxide Fusion ICP
Sm, Samarium (ppm) 47.9 3.42 45.3 50.5 Peroxide Fusion ICP
Sn, Tin (ppm) 699 37 676 723 Peroxide Fusion ICP
Sr, Strontium (ppm) 302 15 293 312 Peroxide Fusion ICP
Ta, Tantalum (ppm) 17.8 1.9 15.3 20.3 Peroxide Fusion ICP
Tb, Terbium (ppm) 2.30 0.32 2.07 2.53 Peroxide Fusion ICP
Th, Thorium (ppm) 95 3.4 93 98 Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.483 0.018 0.475 0.490 Peroxide Fusion ICP
Tl, Thallium (ppm) 10.8 0.82 10.1 11.5 Peroxide Fusion ICP
Tm, Thulium (ppm) 0.33 0.06 0.30 0.37 Peroxide Fusion ICP
V, Vanadium (ppm) 64 4.0 61 67 Peroxide Fusion ICP
Y, Yttrium (ppm) 27.6 1.17 26.6 28.5 Peroxide Fusion ICP
Yb, Ytterbium (ppm) 1.63 0.18 1.56 1.70 Peroxide Fusion ICP
Zn, Zinc (ppm) 142 12 135 150 Peroxide Fusion ICP
Zr, Zirconium (ppm) 194 29 166 222 Peroxide Fusion ICP
Al2O3, Aluminium(III) oxide (wt.%) 9.48 0.078 9.44 9.52 Borate Fusion XRF
BaO, Barium oxide (ppm) 2180 40 2166 2194 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 1.56 0.014 1.55 1.57 Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 4.67 0.055 4.64 4.70 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 1.97 0.020 1.96 1.98 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 0.945 0.018 0.937 0.954 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.051 0.001 0.050 0.051 Borate Fusion XRF
Na2O, Sodium oxide (wt.%) 1.31 0.029 1.29 1.32 Borate Fusion XRF
Nb2O5, Niobium(V) oxide (wt.%) 0.169 0.005 0.165 0.172 Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.368 0.008 0.364 0.372 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 76.34 0.491 76.11 76.57 Borate Fusion XRF
Sn, Tin (ppm) 764 47 740 788 Borate Fusion XRF
SO3, Sulphur trioxide (wt.%) 0.067 0.004 0.064 0.069 Borate Fusion XRF
SrO, Strontium oxide (ppm) 332 35 305 358 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.808 0.010 0.804 0.813 Borate Fusion XRF
Zr, Zirconium (ppm) 200 35 165 235 Borate Fusion XRF
LOI1000, Loss On Ignition @1000°C (wt.%) 0.919 0.048 0.893 0.946 Thermogravimetry
Al, Aluminium (wt.%) 4.90 0.187 4.81 5.00 4-Acid Digestion
As, Arsenic (ppm) 36.0 2.72 34.8 37.1 4-Acid Digestion
Ba, Barium (ppm) 1936 86 1896 1976 4-Acid Digestion
Be, Beryllium (ppm) 31.2 2.33 30.2 32.3 4-Acid Digestion
Bi, Bismuth (ppm) 12.5 1.05 12.0 13.0 4-Acid Digestion
Ca, Calcium (wt.%) 1.09 0.050 1.06 1.11 4-Acid Digestion
Ce, Cerium (ppm) 1106 90 1037 1176 4-Acid Digestion
Co, Cobalt (ppm) 6.90 0.393 6.71 7.09 4-Acid Digestion
Cr, Chromium (ppm) 57 8 53 61 4-Acid Digestion
Cs, Caesium (ppm) 238 12 231 244 4-Acid Digestion
Cu, Copper (ppm) 298 15 292 305 4-Acid Digestion
Dy, Dysprosium (ppm) 9.20 1.10 7.99 10.42 4-Acid Digestion
Er, Erbium (ppm) 3.00 0.38 2.58 3.43 4-Acid Digestion
Eu, Europium (ppm) 10.4 0.80 9.6 11.3 4-Acid Digestion
Fe, Iron (wt.%) 3.23 0.122 3.18 3.29 4-Acid Digestion
Ga, Gallium (ppm) 22.6 3.6 20.4 24.8 4-Acid Digestion
Gd, Gadolinium (ppm) 24.2 3.6 20.2 28.3 4-Acid Digestion
Ge, Germanium (ppm) 0.75 0.15 0.58 0.92 4-Acid Digestion
Hf, Hafnium (ppm) 2.99 0.32 2.84 3.14 4-Acid Digestion
In, Indium (ppm) 2.61 0.162 2.52 2.71 4-Acid Digestion
K, Potassium (wt.%) 1.60 0.053 1.58 1.62 4-Acid Digestion
La, Lanthanum (ppm) 663 47 641 685 4-Acid Digestion
Li, Lithium (wt.%) 0.226 0.012 0.221 0.232 4-Acid Digestion
Li2O, Lithium oxide (wt.%) 0.487 0.026 0.475 0.499 4-Acid Digestion
Lu, Lutetium (ppm) 0.20 0.009 0.19 0.21 4-Acid Digestion
Mg, Magnesium (wt.%) 0.535 0.022 0.525 0.546 4-Acid Digestion
Mn, Manganese (wt.%) 0.039 0.002 0.038 0.040 4-Acid Digestion
Mo, Molybdenum (ppm) 7.99 0.296 7.87 8.11 4-Acid Digestion
Na, Sodium (wt.%) 0.948 0.043 0.925 0.972 4-Acid Digestion
Nb, Niobium (wt.%) 0.111 0.008 0.105 0.117 4-Acid Digestion
Ni, Nickel (ppm) 21.2 1.49 20.6 21.8 4-Acid Digestion
P, Phosphorus (wt.%) 0.155 0.009 0.151 0.160 4-Acid Digestion
Pb, Lead (ppm) 27.8 2.02 26.7 28.8 4-Acid Digestion
Pr, Praseodymium (ppm) 121 3 120 122 4-Acid Digestion
Rb, Rubidium (ppm) 1162 63 1128 1196 4-Acid Digestion
S, Sulphur (wt.%) 0.030 0.003 0.028 0.031 4-Acid Digestion
Sb, Antimony (ppm) 10.6 0.68 10.2 10.9 4-Acid Digestion
Sc, Scandium (ppm) 10.7 0.75 10.3 11.1 4-Acid Digestion
Sm, Samarium (ppm) 48.7 1.48 47.1 50.4 4-Acid Digestion
Sr, Strontium (ppm) 299 12 293 305 4-Acid Digestion
Ta, Tantalum (ppm) 17.8 2.3 16.3 19.3 4-Acid Digestion
Tb, Terbium (ppm) 2.35 0.205 2.15 2.54 4-Acid Digestion
Th, Thorium (ppm) 93 5.5 91 96 4-Acid Digestion
Ti, Titanium (wt.%) 0.470 0.022 0.460 0.480 4-Acid Digestion
Tl, Thallium (ppm) 10.8 0.67 10.4 11.1 4-Acid Digestion
Tm, Thulium (ppm) 0.27 0.04 0.22 0.31 4-Acid Digestion
U, Uranium (ppm) 15.8 0.60 15.6 16.1 4-Acid Digestion
V, Vanadium (ppm) 60 2.5 59 62 4-Acid Digestion
Y, Yttrium (ppm) 26.3 1.46 25.6 27.0 4-Acid Digestion
Yb, Ytterbium (ppm) 1.46 0.123 1.36 1.55 4-Acid Digestion
Zn, Zinc (ppm) 138 5 136 141 4-Acid Digestion
Zr, Zirconium (ppm) 105 7 102 109 4-Acid Digestion
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