| Description: OREAS 354 is a certified reference material (CRM) sourced from zinc sulphide concentrate samples taken from the Dugald River metallurgical plant. The Dugald River deposit is located in the Mt Isa Inlier, ~65km north-west of Cloncurry in north-west Queensland, Australia. The mineralisation style is dominated by sphalerite and galena with a gangue of graphitic slate, pyrrhotite and pyrite. The deposit is hosted within a sequence of upper greenschist to amphibolite facies metamorphic rocks consisting quartzite, schists, slates and dolomite.
Thirteen umpire laboratories determined Zinc in 3 trials by classical wet chemistry methods. Twelve geoanalytical laboratories also participated in the analytical program: - Al2O3, Ba, CaO, Cu, Fe, K2O, MgO, Mn, P2O5, Pb, S, SiO2, TiO2 & Zn by oxidising fusion with XRF finish;
- Full elemental suites by 4-acid digestion with ICP-OES and MS finish;
- Total C and S by IR combustion furnace;
- Graphitic Carbon by HCl leach, with IR induction furnace finish.
Download Certificate OREAS354 Download DataPack OREAS354 | Analyte | Certified Value | 1SD | 95% CI Low | 95% CI High | Method |
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| Ag, Silver (ppm) | 98 | 4.24 | 95.4 | 100.6 | 4-Acid Digestion | | Al, Aluminium (wt.%) | 0.411 | 0.021 | 0.396 | 0.426 | 4-Acid Digestion | | Be, Beryllium (ppm) | 0.5 | IND | IND | IND | 4-Acid Digestion | | Bi, Bismuth (ppm) | 5.6 | 0.499 | 5.08 | 6.12 | 4-Acid Digestion | | Ca, Calcium (wt.%) | 0.165 | 0.007 | 0.16 | 0.169 | 4-Acid Digestion | | Cd, Cadmium (ppm) | 1157 | 35 | 1130 | 1183 | 4-Acid Digestion | | Co, Cobalt (ppm) | 9.56 | 0.622 | 8.98 | 10.13 | 4-Acid Digestion | | Cr, Chromium (ppm) | 6.74 | 1.41 | 5.27 | 8.2 | 4-Acid Digestion | | Cu, Copper (ppm) | 1387 | 49 | 1356 | 1419 | 4-Acid Digestion | | Fe, Iron (wt.%) | 9.82 | 0.33 | 9.6 | 10.03 | 4-Acid Digestion | | Ga, Gallium (ppm) | 9.85 | 0.351 | 9.52 | 10.17 | 4-Acid Digestion | | K, Potassium (wt.%) | 0.354 | 0.017 | 0.341 | 0.366 | 4-Acid Digestion | | Mg, Magnesium (wt.%) | 0.054 | 0.006 | 0.05 | 0.057 | 4-Acid Digestion | | Mn, Manganese (wt.%) | 1.54 | 0.074 | 1.49 | 1.59 | 4-Acid Digestion | | Mo, Molybdenum (ppm) | 2.37 | 0.24 | 2.15 | 2.6 | 4-Acid Digestion | | Na, Sodium (wt.%) | 0.019 | 0.003 | 0.017 | 0.021 | 4-Acid Digestion | | Nb, Niobium (ppm) | 1.06 | 0.31 | 0.66 | 1.47 | 4-Acid Digestion | | Ni, Nickel (ppm) | 10.9 | 1.4 | 10.1 | 11.7 | 4-Acid Digestion | | P, Phosphorus (wt.%) | 0.006 | 0.001 | 0.005 | 0.007 | 4-Acid Digestion | | Pb, Lead (wt.%) | 1.58 | 0.071 | 1.54 | 1.61 | 4-Acid Digestion | | S, Sulphur (wt.%) | 26.63 | 4.087 | 23.36 | 29.9 | 4-Acid Digestion | | Sb, Antimony (ppm) | 51 | 8 | 44 | 57 | 4-Acid Digestion | | Sc, Scandium (ppm) | 1 | IND | IND | IND | 4-Acid Digestion | | Sn, Tin (ppm) | 3.83 | 0.74 | 3.03 | 4.64 | 4-Acid Digestion | | Sr, Strontium (ppm) | 42.6 | 4.6 | 39.4 | 45.8 | 4-Acid Digestion | | Ti, Titanium (wt.%) | 0.025 | 0.004 | 0.022 | 0.027 | 4-Acid Digestion | | U, Uranium (ppm) | 4.42 | 0.411 | 3.88 | 4.95 | 4-Acid Digestion | | V, Vanadium (ppm) | 9.12 | 1.51 | 8 | 10.24 | 4-Acid Digestion | | Y, Yttrium (ppm) | 2.99 | 0.23 | 2.71 | 3.27 | 4-Acid Digestion | | Zn, Zinc (wt.%) | 49.77 | 2.271 | 46.72 | 52.82 | 4-Acid Digestion | | Zr, Zirconium (ppm) | 9.95 | 1.17 | 8.44 | 11.46 | 4-Acid Digestion | | Zn, Zinc (wt.%) | 49.3 | 0.161 | 49.19 | 49.42 | Classical Wet Chemistry | | C, Carbon (wt.%) | 0.526 | 0.026 | 0.518 | 0.535 | Infrared Combustion | | graphitic, C-(Graphite), Carbon (wt.%) | 0.414 | 0.035 | 0.388 | 0.44 | Infrared Combustion | | S, Sulphur (wt.%) | 31.49 | 0.808 | 31.05 | 31.94 | Infrared Combustion | | Al2O3, Aluminium(III) oxide (wt.%) | 0.743 | 0.055 | 0.7 | 0.787 | Oxidising Fusion XRF | | Ba, Barium (ppm) | 1443 | 171 | 1321 | 1565 | Oxidising Fusion XRF | | CaO, Calcium oxide (wt.%) | 0.232 | 0.011 | 0.225 | 0.239 | Oxidising Fusion XRF | | Cu, Copper (ppm) | 1380 | 93 | 1316 | 1444 | Oxidising Fusion XRF | | Fe, Iron (wt.%) | 9.65 | 0.11 | 9.57 | 9.72 | Oxidising Fusion XRF | | K2O, Potassium oxide (wt.%) | 0.44 | 0.012 | 0.432 | 0.449 | Oxidising Fusion XRF | | Mn, Manganese (wt.%) | 1.52 | 0.029 | 1.5 | 1.54 | Oxidising Fusion XRF | | Pb, Lead (wt.%) | 1.55 | 0.091 | 1.49 | 1.61 | Oxidising Fusion XRF | | S, Sulphur (wt.%) | 31.36 | 0.519 | 30.83 | 31.88 | Oxidising Fusion XRF | | SiO2, Silicon dioxide (wt.%) | 3.36 | 0.074 | 3.3 | 3.42 | Oxidising Fusion XRF | | TiO2, Titanium dioxide (wt.%) | 0.057 | 0.019 | 0.043 | 0.071 | Oxidising Fusion XRF | | Zn, Zinc (wt.%) | 49.46 | 0.567 | 49.09 | 49.82 | Oxidising Fusion XRF |
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