OREAS 317

OREAS 317 has been prepared from a blend of barren black slate and various Zn-Pb-Ag ore and concentrate materials. This includes materials from the Dugald River, Black Star and Cannington deposits located in Northern Queensland, Australia.

Twenty-six commercial analytical laboratories participated in the program to certify:

  • Majors & base metals by oxidising fusion with X-ray fluorescence finish;
  • Loss on ignition at 1000° Celsius;
  • Total Sulphur by infrared combustion furnace or C/S analyser;
  • Full ICP-OES and MS elemental suites by peroxide fusion;
  • Full ICP-OES and MS elemental suites by 4-acid (HNO3-HF-HClO4-HCl) digestion;
  • Full ICP-OES and MS elemental suites by aqua regia digestion.
Analyte Certified Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Zn, Zinc (wt.%) 17.45 0.383 17.10 17.79 4-Acid Digestion
Pb, Lead (wt.%) 12.13 0.466 11.73 12.53 4-Acid Digestion
Ag, Silver (ppm) 232 8 227 236 4-Acid Digestion
Al2O3, Aluminium(III) oxide (wt.%) 5.79 0.112 5.70 5.87 Borate Fusion XRF
As, Arsenic (ppm) 249 70 127 371 Borate Fusion XRF
BaO, Barium oxide (wt.%) 0.365 0.026 0.344 0.386 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 0.828 0.051 0.793 0.863 Borate Fusion XRF
Cu, Copper (wt.%) 0.421 0.035 0.398 0.444 Borate Fusion XRF
Fe, Iron (wt.%) 6.92 0.150 6.81 7.02 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 1.95 0.125 1.88 2.02 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 0.704 0.086 0.652 0.756 Borate Fusion XRF
Mn, Manganese (wt.%) 0.693 0.025 0.677 0.710 Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.072 0.011 0.062 0.081 Borate Fusion XRF
Pb, Lead (wt.%) 12.42 0.445 12.11 12.74 Borate Fusion XRF
S, Sulphur (wt.%) 14.96 0.333 14.64 15.27 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 31.15 0.677 30.69 31.62 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.244 0.014 0.232 0.257 Borate Fusion XRF
Zn, Zinc (wt.%) 17.28 0.213 17.10 17.46 Borate Fusion XRF
LOI1000, Loss On Ignition @1000 °C (wt.%) 11.54 0.324 11.29 11.79 Thermogravimetry
C, Carbon (wt.%) 1.91 0.046 1.88 1.94 Infrared Combustion
S, Sulphur (wt.%) 15.17 0.495 14.80 15.54 Infrared Combustion
Ag, Silver (ppm) 231 8 218 245 Borate / Peroxide Fusion ICP
Al, Aluminium (wt.%) 3.07 0.143 2.98 3.17 Borate / Peroxide Fusion ICP
As, Arsenic (ppm) 243 13 230 256 Borate / Peroxide Fusion ICP
B, Boron (ppm) 47.1 16.8 19.1 75.1 Borate / Peroxide Fusion ICP
Ba, Barium (wt.%) 0.317 0.014 0.304 0.331 Borate / Peroxide Fusion ICP
Be, Beryllium (ppm) 1.78 0.34 1.19 2.37 Borate / Peroxide Fusion ICP
Bi, Bismuth (ppm) 42.4 3.02 39.6 45.2 Borate / Peroxide Fusion ICP
Ca, Calcium (wt.%) 0.564 0.040 0.526 0.602 Borate / Peroxide Fusion ICP
Cd, Cadmium (ppm) 379 16 358 400 Borate / Peroxide Fusion ICP
Ce, Cerium (ppm) 41.7 1.76 39.8 43.7 Borate / Peroxide Fusion ICP
Co, Cobalt (ppm) 12.9 2.3 11.3 14.4 Borate / Peroxide Fusion ICP
Cr, Chromium (ppm) 72 15 60 84 Borate / Peroxide Fusion ICP
Cs, Caesium (ppm) 1.94 0.194 1.73 2.16 Borate / Peroxide Fusion ICP
Cu, Copper (wt.%) 0.410 0.014 0.397 0.424 Borate / Peroxide Fusion ICP
Dy, Dysprosium (ppm) 2.39 0.155 2.13 2.65 Borate / Peroxide Fusion ICP
Er, Erbium (ppm) 1.41 0.085 1.29 1.53 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 0.70 0.08 0.59 0.82 Borate / Peroxide Fusion ICP
Fe, Iron (wt.%) 6.90 0.207 6.65 7.15 Borate / Peroxide Fusion ICP
Ga, Gallium (ppm) 11.8 1.3 9.9 13.6 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 2.88 0.185 2.60 3.15 Borate / Peroxide Fusion ICP
Ge, Germanium (ppm) 3.35 0.73 2.48 4.23 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 0.48 0.06 0.37 0.59 Borate / Peroxide Fusion ICP
In, Indium (ppm) 1.29 0.14 1.16 1.42 Borate / Peroxide Fusion ICP
K, Potassium (wt.%) 1.65 0.055 1.60 1.70 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 19.5 2.2 17.9 21.1 Borate / Peroxide Fusion ICP
Li, Lithium (ppm) 14.8 1.7 13.0 16.6 Borate / Peroxide Fusion ICP
Mg, Magnesium (wt.%) 0.401 0.016 0.386 0.417 Borate / Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.695 0.026 0.669 0.720 Borate / Peroxide Fusion ICP
Mo, Molybdenum (ppm) 44.0 3.77 41.2 46.7 Borate / Peroxide Fusion ICP
Nb, Niobium (ppm) 5.71 0.72 4.96 6.45 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 17.9 0.80 17.0 18.8 Borate / Peroxide Fusion ICP
Ni, Nickel (ppm) 104 15 89 120 Borate / Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.030 0.005 0.022 0.038 Borate / Peroxide Fusion ICP
Pb, Lead (wt.%) 12.09 0.259 11.76 12.42 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 4.54 0.234 4.23 4.85 Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 76 4.4 70 83 Borate / Peroxide Fusion ICP
S, Sulphur (wt.%) 15.02 0.340 14.74 15.30 Borate / Peroxide Fusion ICP
Sb, Antimony (ppm) 253 11 238 267 Borate / Peroxide Fusion ICP
Se, Selenium (ppm) < 20.0 IND IND IND Borate / Peroxide Fusion ICP
Si, Silicon (wt.%) 15.23 0.616 14.73 15.73 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 3.39 0.36 2.97 3.82 Borate / Peroxide Fusion ICP
Sr, Strontium (ppm) 121 9 115 126 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 0.40 0.014 0.37 0.43 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 7.14 0.308 6.79 7.50 Borate / Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.143 0.009 0.135 0.151 Borate / Peroxide Fusion ICP
Tl, Thallium (ppm) 17.2 0.72 16.5 17.9 Borate / Peroxide Fusion ICP
Tm, Thulium (ppm) 0.20 0.03 0.14 0.27 Borate / Peroxide Fusion ICP
U, Uranium (ppm) 4.59 0.374 4.19 4.99 Borate / Peroxide Fusion ICP
V, Vanadium (ppm) 70 5.7 64 77 Borate / Peroxide Fusion ICP
Y, Yttrium (ppm) 12.7 1.5 11.6 13.8 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 1.40 0.14 1.24 1.57 Borate / Peroxide Fusion ICP
Zn, Zinc (wt.%) 17.38 0.531 16.95 17.80 Borate / Peroxide Fusion ICP
Zr, Zirconium (ppm) 60 10 43 77 Borate / Peroxide Fusion ICP
Al, Aluminium (wt.%) 3.02 0.177 2.92 3.13 4-Acid Digestion
As, Arsenic (ppm) 237 21 225 248 4-Acid Digestion
Be, Beryllium (ppm) 1.48 0.105 1.39 1.56 4-Acid Digestion
Bi, Bismuth (ppm) 44.4 2.31 43.0 45.8 4-Acid Digestion
Ca, Calcium (wt.%) 0.583 0.035 0.564 0.602 4-Acid Digestion
Cd, Cadmium (ppm) 374 28 359 388 4-Acid Digestion
Ce, Cerium (ppm) 37.2 1.89 34.0 40.3 4-Acid Digestion
Co, Cobalt (ppm) 12.5 1.5 11.5 13.5 4-Acid Digestion
Cr, Chromium (ppm) 64 6.3 61 68 4-Acid Digestion
Cs, Caesium (ppm) 1.86 0.23 1.71 2.02 4-Acid Digestion
Cu, Copper (wt.%) 0.413 0.017 0.402 0.423 4-Acid Digestion
Dy, Dysprosium (ppm) 2.18 0.25 1.94 2.42 4-Acid Digestion
Er, Erbium (ppm) 1.13 0.20 0.92 1.34 4-Acid Digestion
Eu, Europium (ppm) 0.61 0.08 0.52 0.69 4-Acid Digestion
Fe, Iron (wt.%) 6.83 0.361 6.61 7.05 4-Acid Digestion
Ga, Gallium (ppm) 10.7 1.3 9.8 11.6 4-Acid Digestion
Gd, Gadolinium (ppm) 2.63 0.28 2.37 2.88 4-Acid Digestion
Hf, Hafnium (ppm) 1.33 0.14 1.18 1.47 4-Acid Digestion
Ho, Holmium (ppm) 0.40 0.05 0.35 0.46 4-Acid Digestion
In, Indium (ppm) 1.18 0.13 1.09 1.27 4-Acid Digestion
K, Potassium (wt.%) 1.62 0.048 1.58 1.66 4-Acid Digestion
La, Lanthanum (ppm) 15.9 1.9 14.3 17.4 4-Acid Digestion
Li, Lithium (ppm) 14.1 1.39 13.0 15.1 4-Acid Digestion
Lu, Lutetium (ppm) 0.17 0.02 0.14 0.20 4-Acid Digestion
Mg, Magnesium (wt.%) 0.388 0.024 0.373 0.403 4-Acid Digestion
Mn, Manganese (wt.%) 0.679 0.031 0.657 0.701 4-Acid Digestion
Mo, Molybdenum (ppm) 41.5 1.64 39.7 43.3 4-Acid Digestion
Na, Sodium (wt.%) 0.061 0.009 0.056 0.066 4-Acid Digestion
Nd, Neodymium (ppm) 15.8 1.53 14.5 17.1 4-Acid Digestion
Ni, Nickel (ppm) 101 8 97 105 4-Acid Digestion
P, Phosphorus (wt.%) 0.030 0.003 0.028 0.032 4-Acid Digestion
Pr, Praseodymium (ppm) 4.29 0.174 4.00 4.58 4-Acid Digestion
Rb, Rubidium (ppm) 73 6.3 68 78 4-Acid Digestion
Re, Rhenium (ppm) 0.096 0.019 0.076 0.115 4-Acid Digestion
S, Sulphur (wt.%) 14.78 0.610 14.28 15.28 4-Acid Digestion
Sb, Antimony (ppm) 224 35 207 242 4-Acid Digestion
Sc, Scandium (ppm) 5.31 0.63 4.85 5.77 4-Acid Digestion
Se, Selenium (ppm) 4.98 1.06 3.45 6.51 4-Acid Digestion
Sm, Samarium (ppm) 3.22 0.262 2.95 3.48 4-Acid Digestion
Sn, Tin (ppm) 3.61 0.62 3.16 4.05 4-Acid Digestion
Sr, Strontium (ppm) 101 9 97 106 4-Acid Digestion
Tb, Terbium (ppm) 0.37 0.033 0.34 0.41 4-Acid Digestion
Te, Tellurium (ppm) 0.82 0.17 0.65 0.99 4-Acid Digestion
Th, Thorium (ppm) 6.17 0.87 5.59 6.74 4-Acid Digestion
Ti, Titanium (wt.%) 0.106 0.024 0.095 0.118 4-Acid Digestion
Tl, Thallium (ppm) 17.8 1.48 16.8 18.8 4-Acid Digestion
Tm, Thulium (ppm) 0.18 0.02 0.15 0.21 4-Acid Digestion
U, Uranium (ppm) 4.49 0.253 4.16 4.82 4-Acid Digestion
V, Vanadium (ppm) 67 3.2 64 70 4-Acid Digestion
W, Tungsten (ppm) 1.71 0.25 1.54 1.88 4-Acid Digestion
Y, Yttrium (ppm) 10.3 1.4 9.3 11.2 4-Acid Digestion
Yb, Ytterbium (ppm) 1.18 0.23 0.99 1.37 4-Acid Digestion
Zr, Zirconium (ppm) 40.9 3.91 38.4 43.4 4-Acid Digestion
Ag, Silver (ppm) 232 7 227 237 Aqua Regia Digestion
Al, Aluminium (wt.%) 0.508 0.095 0.462 0.553 Aqua Regia Digestion
As, Arsenic (ppm) 242 16 231 253 Aqua Regia Digestion
Be, Beryllium (ppm) 0.48 0.06 0.44 0.52 Aqua Regia Digestion
Bi, Bismuth (ppm) 44.1 2.70 42.2 46.0 Aqua Regia Digestion
Ca, Calcium (wt.%) 0.575 0.032 0.552 0.597 Aqua Regia Digestion
Cd, Cadmium (ppm) 369 27 354 385 Aqua Regia Digestion
Ce, Cerium (ppm) 27.0 5.1 23.4 30.6 Aqua Regia Digestion
Co, Cobalt (ppm) 10.3 2.5 9.0 11.5 Aqua Regia Digestion
Cr, Chromium (ppm) 24.1 1.81 22.7 25.4 Aqua Regia Digestion
Cs, Caesium (ppm) 0.70 0.08 0.64 0.77 Aqua Regia Digestion
Cu, Copper (wt.%) 0.422 0.020 0.408 0.436 Aqua Regia Digestion
Dy, Dysprosium (ppm) 1.10 0.19 0.87 1.32 Aqua Regia Digestion
Er, Erbium (ppm) 0.50 0.12 0.36 0.63 Aqua Regia Digestion
Eu, Europium (ppm) 0.38 0.024 0.35 0.41 Aqua Regia Digestion
Fe, Iron (wt.%) 6.78 0.341 6.56 6.99 Aqua Regia Digestion
Ga, Gallium (ppm) 4.14 0.64 3.68 4.61 Aqua Regia Digestion
Gd, Gadolinium (ppm) 1.57 0.33 1.19 1.95 Aqua Regia Digestion
Hf, Hafnium (ppm) 0.32 0.06 0.26 0.38 Aqua Regia Digestion
Hg, Mercury (ppm) 6.01 0.67 5.62 6.40 Aqua Regia Digestion
Ho, Holmium (ppm) 0.20 0.020 0.17 0.23 Aqua Regia Digestion
In, Indium (ppm) 1.15 0.113 1.06 1.25 Aqua Regia Digestion
K, Potassium (wt.%) 0.188 0.033 0.172 0.205 Aqua Regia Digestion
La, Lanthanum (ppm) 10.8 2.4 9.3 12.3 Aqua Regia Digestion
Li, Lithium (ppm) 5.36 1.08 4.37 6.35 Aqua Regia Digestion
Lu, Lutetium (ppm) 0.071 0.011 0.054 0.088 Aqua Regia Digestion
Mg, Magnesium (wt.%) 0.264 0.018 0.253 0.274 Aqua Regia Digestion
Mn, Manganese (wt.%) 0.664 0.046 0.637 0.690 Aqua Regia Digestion
Mo, Molybdenum (ppm) 41.1 2.82 39.3 42.9 Aqua Regia Digestion
Nd, Neodymium (ppm) 10.5 0.66 9.5 11.5 Aqua Regia Digestion
Ni, Nickel (ppm) 99 7.0 95 104 Aqua Regia Digestion
P, Phosphorus (wt.%) 0.029 0.002 0.027 0.031 Aqua Regia Digestion
Pb, Lead (wt.%) 12.19 0.298 11.93 12.45 Aqua Regia Digestion
Pr, Praseodymium (ppm) 2.61 0.53 2.01 3.21 Aqua Regia Digestion
Rb, Rubidium (ppm) 11.4 2.9 9.5 13.2 Aqua Regia Digestion
Re, Rhenium (ppm) 0.11 0.01 0.09 0.12 Aqua Regia Digestion
S, Sulphur (wt.%) 14.92 0.675 14.36 15.48 Aqua Regia Digestion
Sb, Antimony (ppm) 200 19 189 211 Aqua Regia Digestion
Sc, Scandium (ppm) 1.27 0.24 1.05 1.48 Aqua Regia Digestion
Se, Selenium (ppm) 6.87 1.01 5.73 8.01 Aqua Regia Digestion
Sm, Samarium (ppm) 1.86 0.36 1.45 2.27 Aqua Regia Digestion
Sn, Tin (ppm) 2.52 0.41 2.22 2.83 Aqua Regia Digestion
Sr, Strontium (ppm) 21.2 3.2 19.6 22.8 Aqua Regia Digestion
Ta, Tantalum (ppm) < 0.050 IND IND IND Aqua Regia Digestion
Tb, Terbium (ppm) 0.23 0.03 0.19 0.27 Aqua Regia Digestion
Te, Tellurium (ppm) 0.86 0.16 0.71 1.02 Aqua Regia Digestion
Th, Thorium (ppm) 5.07 0.423 4.73 5.41 Aqua Regia Digestion
Ti, Titanium (wt.%) 0.010 0.001 0.009 0.010 Aqua Regia Digestion
Tl, Thallium (ppm) 10.9 0.89 10.2 11.5 Aqua Regia Digestion
Tm, Thulium (ppm) 0.057 0.025 0.022 0.092 Aqua Regia Digestion
U, Uranium (ppm) 3.55 0.293 3.31 3.79 Aqua Regia Digestion
V, Vanadium (ppm) 16.2 3.1 14.5 18.0 Aqua Regia Digestion
W, Tungsten (ppm) 0.75 0.13 0.63 0.86 Aqua Regia Digestion
Y, Yttrium (ppm) 4.65 0.92 4.06 5.25 Aqua Regia Digestion
Yb, Ytterbium (ppm) 0.42 0.12 0.26 0.59 Aqua Regia Digestion
Zn, Zinc (wt.%) 17.49 0.398 17.16 17.83 Aqua Regia Digestion
Zr, Zirconium (ppm) 11.5 3.1 9.3 13.6 Aqua Regia Digestion
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