OREAS 149

OREAS 149 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 149 is one of three CRMs ranging 0.49 – 2.2% L2O and contains 113 certified values (and 60 indicative values) including majors and traces by fusion XRF, fusion ICP and 4-acid digestion.

 

Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Li2O, Lithium oxide (wt.%) 2.21 0.064 2.18 2.24 Peroxide Fusion ICP
Li, Lithium (wt.%) 1.03 0.030 1.01 1.04 Peroxide Fusion ICP
Nb, Niobium (wt.%) 0.626 0.022 0.611 0.640 Peroxide Fusion ICP
Al, Aluminium (wt.%) 7.89 0.203 7.78 8.00 Peroxide Fusion ICP
As, Arsenic (ppm) 152 12 143 160 Peroxide Fusion ICP
Ba, Barium (ppm) 2862 128 2781 2942 Peroxide Fusion ICP
Be, Beryllium (ppm) 30.5 3.9 27.9 33.2 Peroxide Fusion ICP
Bi, Bismuth (ppm) 47.8 3.88 44.6 51.0 Peroxide Fusion ICP
Ca, Calcium (wt.%) 1.06 0.051 1.04 1.08 Peroxide Fusion ICP
Ce, Cerium (ppm) 432 18 420 445 Peroxide Fusion ICP
Cr, Chromium (ppm) 103 16 88 118 Peroxide Fusion ICP
Cs, Caesium (ppm) 350 12 343 357 Peroxide Fusion ICP
Cu, Copper (ppm) 370 45 340 401 Peroxide Fusion ICP
Dy, Dysprosium (ppm) 4.39 0.225 4.30 4.47 Peroxide Fusion ICP
Er, Erbium (ppm) 1.82 0.168 1.74 1.91 Peroxide Fusion ICP
Eu, Europium (ppm) 4.29 0.259 4.15 4.43 Peroxide Fusion ICP
Fe, Iron (wt.%) 4.30 0.066 4.27 4.33 Peroxide Fusion ICP
Ga, Gallium (ppm) 47.1 2.49 44.8 49.3 Peroxide Fusion ICP
Gd, Gadolinium (ppm) 9.67 0.668 9.21 10.12 Peroxide Fusion ICP
Hf, Hafnium (ppm) 5.23 0.96 4.45 6.01 Peroxide Fusion ICP
Ho, Holmium (ppm) 0.75 0.063 0.72 0.78 Peroxide Fusion ICP
K, Potassium (wt.%) 1.42 0.056 1.39 1.44 Peroxide Fusion ICP
La, Lanthanum (ppm) 267 7 263 270 Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.046 0.001 0.045 0.046 Peroxide Fusion ICP
Mo, Molybdenum (ppm) 11.5 1.6 10.3 12.6 Peroxide Fusion ICP
Nd, Neodymium (ppm) 151 10 145 157 Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.107 0.008 0.103 0.111 Peroxide Fusion ICP
Pb, Lead (ppm) 41.1 7.9 34.5 47.7 Peroxide Fusion ICP
Pr, Praseodymium (ppm) 47.8 1.89 46.8 48.9 Peroxide Fusion ICP
Rb, Rubidium (ppm) 824 31 800 847 Peroxide Fusion ICP
Sb, Antimony (ppm) 29.0 3.0 26.9 31.1 Peroxide Fusion ICP
Si, Silicon (wt.%) 31.39 0.939 30.85 31.92 Peroxide Fusion ICP
Sm, Samarium (ppm) 19.5 1.41 18.7 20.3 Peroxide Fusion ICP
Sn, Tin (wt.%) 0.329 0.031 0.310 0.348 Peroxide Fusion ICP
Sr, Strontium (ppm) 229 8 224 235 Peroxide Fusion ICP
Ta, Tantalum (ppm) 30.6 2.94 27.5 33.7 Peroxide Fusion ICP
Tb, Terbium (ppm) 1.10 0.17 0.99 1.22 Peroxide Fusion ICP
Th, Thorium (ppm) 116 8 111 122 Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.374 0.007 0.372 0.377 Peroxide Fusion ICP
Tl, Thallium (ppm) 7.11 0.410 6.76 7.45 Peroxide Fusion ICP
Tm, Thulium (ppm) 0.24 0.04 0.22 0.26 Peroxide Fusion ICP
U, Uranium (ppm) 24.9 1.22 24.0 25.7 Peroxide Fusion ICP
Y, Yttrium (ppm) 17.3 1.7 16.1 18.5 Peroxide Fusion ICP
Yb, Ytterbium (ppm) 1.47 0.133 1.43 1.50 Peroxide Fusion ICP
Zn, Zinc (ppm) 345 18 333 357 Peroxide Fusion ICP
Zr, Zirconium (ppm) 156 24 132 180 Peroxide Fusion ICP
Al2O3, Aluminium(III) oxide (wt.%) 14.98 0.184 14.88 15.08 Borate Fusion XRF
BaO, Barium oxide (ppm) 3202 75 3158 3245 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 1.47 0.016 1.46 1.48 Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%) 6.13 0.109 6.08 6.19 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 1.70 0.019 1.69 1.71 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 0.953 0.020 0.944 0.963 Borate Fusion XRF
Na2O, Sodium oxide (wt.%) 1.31 0.016 1.31 1.32 Borate Fusion XRF
Nb2O5, Niobium(V) oxide (wt.%) 0.915 0.024 0.897 0.933 Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.243 0.008 0.239 0.248 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 66.80 0.610 66.47 67.12 Borate Fusion XRF
Sn, Tin (wt.%) 0.337 0.013 0.330 0.344 Borate Fusion XRF
SO3, Sulphur trioxide (wt.%) 0.084 0.005 0.080 0.087 Borate Fusion XRF
SrO, Strontium oxide (ppm) 234 40 207 261 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.627 0.011 0.621 0.632 Borate Fusion XRF
V2O5, Vanadium(V) oxide (ppm) 154 27 124 185 Borate Fusion XRF
Zn, Zinc (ppm) 335 30 295 375 Borate Fusion XRF
LOI1000, Loss On Ignition @1000°C (wt.%) 1.31 0.074 1.26 1.36 Thermogravimetry
Ag, Silver (ppm) 1.04 0.160 0.89 1.18 4-Acid Digestion
Al, Aluminium (wt.%) 7.47 0.430 7.25 7.69 4-Acid Digestion
As, Arsenic (ppm) 149 7 146 152 4-Acid Digestion
Ba, Barium (ppm) 2816 115 2757 2874 4-Acid Digestion
Be, Beryllium (ppm) 26.1 1.85 25.3 26.9 4-Acid Digestion
Bi, Bismuth (ppm) 46.5 3.89 44.5 48.4 4-Acid Digestion
Ca, Calcium (wt.%) 1.04 0.040 1.02 1.06 4-Acid Digestion
Ce, Cerium (ppm) 400 35 383 417 4-Acid Digestion
Co, Cobalt (ppm) 8.02 0.453 7.80 8.23 4-Acid Digestion
Cr, Chromium (ppm) 85 6.1 82 89 4-Acid Digestion
Cs, Caesium (ppm) 341 12 336 346 4-Acid Digestion
Cu, Copper (ppm) 338 27 325 350 4-Acid Digestion
Dy, Dysprosium (ppm) 4.95 0.83 4.04 5.87 4-Acid Digestion
Er, Erbium (ppm) 1.83 0.22 1.56 2.11 4-Acid Digestion
Eu, Europium (ppm) 4.51 0.59 3.83 5.18 4-Acid Digestion
Fe, Iron (wt.%) 4.17 0.146 4.11 4.23 4-Acid Digestion
Ga, Gallium (ppm) 48.4 1.56 47.5 49.3 4-Acid Digestion
Hf, Hafnium (ppm) 2.90 0.213 2.82 2.99 4-Acid Digestion
Ho, Holmium (ppm) 0.67 0.09 0.56 0.79 4-Acid Digestion
In, Indium (ppm) 11.3 0.88 10.7 11.9 4-Acid Digestion
K, Potassium (wt.%) 1.38 0.043 1.36 1.39 4-Acid Digestion
La, Lanthanum (ppm) 235 25 223 248 4-Acid Digestion
Li, Lithium (wt.%) 0.993 0.027 0.981 1.004 4-Acid Digestion
Li2O, Lithium oxide (wt.%) 2.14 0.059 2.11 2.16 4-Acid Digestion
Lu, Lutetium (ppm) 0.19 0.02 0.17 0.21 4-Acid Digestion
Mg, Magnesium (wt.%) 0.533 0.022 0.523 0.542 4-Acid Digestion
Mn, Manganese (wt.%) 0.045 0.002 0.044 0.046 4-Acid Digestion
Mo, Molybdenum (ppm) 10.8 0.52 10.6 11.1 4-Acid Digestion
Na, Sodium (wt.%) 0.932 0.126 0.873 0.991 4-Acid Digestion
Nb, Niobium (wt.%) 0.631 0.022 0.614 0.648 4-Acid Digestion
Nd, Neodymium (ppm) 153 7 145 161 4-Acid Digestion
Ni, Nickel (ppm) 31.6 1.50 30.9 32.3 4-Acid Digestion
P, Phosphorus (wt.%) 0.096 0.013 0.089 0.102 4-Acid Digestion
Pb, Lead (ppm) 36.1 2.72 34.5 37.6 4-Acid Digestion
Pr, Praseodymium (ppm) 48.7 2.25 45.9 51.5 4-Acid Digestion
Rb, Rubidium (ppm) 775 59 748 802 4-Acid Digestion
Sb, Antimony (ppm) 28.3 1.95 27.3 29.3 4-Acid Digestion
Sc, Scandium (ppm) 7.51 0.407 7.33 7.68 4-Acid Digestion
Sm, Samarium (ppm) 19.8 0.71 19.1 20.6 4-Acid Digestion
Sr, Strontium (ppm) 221 10 217 226 4-Acid Digestion
Ta, Tantalum (ppm) 26.5 2.8 24.7 28.2 4-Acid Digestion
Tb, Terbium (ppm) 1.12 0.088 1.06 1.19 4-Acid Digestion
Th, Thorium (ppm) 108 6 105 110 4-Acid Digestion
Ti, Titanium (wt.%) 0.356 0.023 0.346 0.366 4-Acid Digestion
Tl, Thallium (ppm) 6.98 0.467 6.73 7.22 4-Acid Digestion
Tm, Thulium (ppm) 0.20 0.03 0.16 0.24 4-Acid Digestion
U, Uranium (ppm) 22.1 2.4 21.0 23.2 4-Acid Digestion
V, Vanadium (ppm) 73 5.1 70 76 4-Acid Digestion
Y, Yttrium (ppm) 16.3 1.47 15.5 17.0 4-Acid Digestion
Yb, Ytterbium (ppm) 1.26 0.072 1.22 1.30 4-Acid Digestion
Zn, Zinc (ppm) 350 10 346 354 4-Acid Digestion
Zr, Zirconium (ppm) 77 6.2 75 80 4-Acid Digestion
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Information is provided for reference only.

Specifications