OREAS 630b
primary
pyritic tailings
volcanic hosted massive sulphide
OREAS 630b
SKU: 630b
OREAS 630b is a zinc tailings certified reference material (CRM) sourced from
the Rosebery metallurgical plant owned and operated by MMG Ltd. The Rosebery
mine and plant are located in the north-west region of Tasmania, Australia
approximately 300 kilometres north-west of Hobart and 125 kilometres south of
Burnie. The key minerals of economic importance include sphalerite, galena,
pyrite, chalcopyrite and electrum.Twenty commercial analytical laboratories
participated in the program to certify the elements reported in Table 1. The
following methods were employed:
Au by 30-50g fire assay with ICP-OES finish (10 laboratories) and AAS
finish (9 laboratories);
Majors & base metals by oxidising fusion with X-ray fluorescence
finish (11 laboratories);
Full elemental suite by peroxide fusion with ICP-OES and ICP-MS finish (up
to 17 laboratories depending on the element);
Four acid digestion for full elemental suites with ICP-OES and ICP-MS (up
to 18 laboratories depending on the element);
Aqua regia digestion for full elemental suites with AAS and/or ICP-OES and
ICP-MS (up to 18 laboratories depending on the element);
Total Sulphur by infra-red combustion furnace or C/S
analyser.
Specifications
- State: primary
- Matrix: pyritic tailings
- Mineralisation: volcanic hosted massive sulphide
- CRM Group: Zn-Pb-Ag sulphide ore, Au
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Zn, Zinc (wt.%) | 1.11 | 0.025 | 1.09 | 1.13 | Oxidising Fusion XRF |
| Pb, Lead (wt.%) | 0.442 | 0.010 | 0.435 | 0.450 | Oxidising Fusion XRF |
| Au, Gold (ppm) | 0.358 | 0.013 | 0.353 | 0.364 | Pb Fire Assay |
| Al2O3, Aluminium(III) oxide (wt.%) | 9.79 | 0.231 | 9.63 | 9.94 | Oxidising Fusion XRF |
| BaO, Barium oxide (wt.%) | 7.57 | 0.114 | 7.49 | 7.65 | Oxidising Fusion XRF |
| CaO, Calcium oxide (wt.%) | 2.20 | 0.038 | 2.18 | 2.23 | Oxidising Fusion XRF |
| Cr, Chromium (ppm) | < 70 | IND | IND | IND | Oxidising Fusion XRF |
| Cu, Copper (ppm) | 547 | 45 | 510 | 585 | Oxidising Fusion XRF |
| Fe, Iron (wt.%) | 6.24 | 0.132 | 6.15 | 6.34 | Oxidising Fusion XRF |
| K2O, Potassium oxide (wt.%) | 2.23 | 0.031 | 2.21 | 2.25 | Oxidising Fusion XRF |
| MgO, Magnesium oxide (wt.%) | 1.44 | 0.027 | 1.42 | 1.46 | Oxidising Fusion XRF |
| Mn, Manganese (wt.%) | 3.49 | 0.103 | 3.42 | 3.56 | Oxidising Fusion XRF |
| Na2O, Sodium oxide (wt.%) | 0.969 | 0.097 | 0.839 | 1.100 | Oxidising Fusion XRF |
| P2O5, Phosphorus(V) oxide (wt.%) | 0.104 | 0.007 | 0.100 | 0.108 | Oxidising Fusion XRF |
| S, Sulphur (wt.%) | 6.92 | 0.115 | 6.83 | 7.00 | Oxidising Fusion XRF |
| SiO2, Silicon dioxide (wt.%) | 46.32 | 0.373 | 46.02 | 46.61 | Oxidising Fusion XRF |
| Sn, Tin (ppm) | < 50 | IND | IND | IND | Oxidising Fusion XRF |
| Sr, Strontium (ppm) | 735 | 61 | 684 | 787 | Oxidising Fusion XRF |
| TiO2, Titanium dioxide (wt.%) | 0.404 | 0.020 | 0.390 | 0.418 | Oxidising Fusion XRF |
| Zr, Zirconium (ppm) | 192 | 46 | 152 | 232 | Oxidising Fusion XRF |
| Al, Aluminium (wt.%) | 5.11 | 0.120 | 5.05 | 5.18 | Borate / Peroxide Fusion ICP |
| As, Arsenic (ppm) | 410 | 21 | 395 | 426 | Borate / Peroxide Fusion ICP |
| Be, Beryllium (ppm) | < 5.00 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| Bi, Bismuth (ppm) | 3.93 | 0.196 | 3.71 | 4.15 | Borate / Peroxide Fusion ICP |
| Ca, Calcium (wt.%) | 1.59 | 0.077 | 1.55 | 1.63 | Borate / Peroxide Fusion ICP |
| Cd, Cadmium (ppm) | 28.8 | 1.80 | 26.9 | 30.7 | Borate / Peroxide Fusion ICP |
| Cu, Copper (ppm) | 518 | 19 | 508 | 527 | Borate / Peroxide Fusion ICP |
| Fe, Iron (wt.%) | 6.13 | 0.141 | 6.07 | 6.20 | Borate / Peroxide Fusion ICP |
| In, Indium (ppm) | < 0.50 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| K, Potassium (wt.%) | 1.82 | 0.081 | 1.78 | 1.86 | Borate / Peroxide Fusion ICP |
| La, Lanthanum (ppm) | 36.9 | 3.9 | 31.8 | 41.9 | Borate / Peroxide Fusion ICP |
| Li, Lithium (ppm) | 21.9 | 2.6 | 20.9 | 22.9 | Borate / Peroxide Fusion ICP |
| Mg, Magnesium (wt.%) | 0.837 | 0.020 | 0.826 | 0.847 | Borate / Peroxide Fusion ICP |
| Mn, Manganese (wt.%) | 3.46 | 0.120 | 3.40 | 3.52 | Borate / Peroxide Fusion ICP |
| Mo, Molybdenum (ppm) | 14.5 | 2.2 | 12.4 | 16.5 | Borate / Peroxide Fusion ICP |
| Nb, Niobium (ppm) | 8.60 | 1.83 | 6.46 | 10.74 | Borate / Peroxide Fusion ICP |
| Ni, Nickel (ppm) | 46.9 | 9.1 | 41.7 | 52.1 | Borate / Peroxide Fusion ICP |
| P, Phosphorus (wt.%) | 0.052 | 0.008 | 0.044 | 0.061 | Borate / Peroxide Fusion ICP |
| Pb, Lead (wt.%) | 0.432 | 0.012 | 0.427 | 0.438 | Borate / Peroxide Fusion ICP |
| Rb, Rubidium (ppm) | 106 | 2 | 104 | 107 | Borate / Peroxide Fusion ICP |
| S, Sulphur (wt.%) | 6.16 | 0.63 | 5.78 | 6.54 | Borate / Peroxide Fusion ICP |
| Sb, Antimony (ppm) | 50 | 3.6 | 47 | 54 | Borate / Peroxide Fusion ICP |
| Si, Silicon (wt.%) | 21.62 | 0.520 | 21.35 | 21.89 | Borate / Peroxide Fusion ICP |
| Sr, Strontium (ppm) | 706 | 31 | 684 | 729 | Borate / Peroxide Fusion ICP |
| Th, Thorium (ppm) | 10.8 | 1.1 | 9.7 | 11.9 | Borate / Peroxide Fusion ICP |
| Ti, Titanium (wt.%) | 0.237 | 0.008 | 0.233 | 0.240 | Borate / Peroxide Fusion ICP |
| Tl, Thallium (ppm) | 24.2 | 1.33 | 22.5 | 26.0 | Borate / Peroxide Fusion ICP |
| U, Uranium (ppm) | 5.97 | 0.402 | 5.47 | 6.47 | Borate / Peroxide Fusion ICP |
| V, Vanadium (ppm) | < 50 | IND | IND | IND | Borate / Peroxide Fusion ICP |
| W, Tungsten (ppm) | 25.4 | 6.5 | 19.2 | 31.5 | Borate / Peroxide Fusion ICP |
| Y, Yttrium (ppm) | 24.7 | 1.40 | 23.6 | 25.8 | Borate / Peroxide Fusion ICP |
| Yb, Ytterbium (ppm) | 2.85 | 0.42 | 2.33 | 3.37 | Borate / Peroxide Fusion ICP |
| Zn, Zinc (wt.%) | 1.11 | 0.020 | 1.11 | 1.12 | Borate / Peroxide Fusion ICP |
| Ag, Silver (ppm) | 19.0 | 0.53 | 18.8 | 19.3 | 4-Acid Digestion |
| Al, Aluminium (wt.%) | 5.08 | 0.182 | 4.99 | 5.16 | 4-Acid Digestion |
| As, Arsenic (ppm) | 413 | 18 | 403 | 422 | 4-Acid Digestion |
| Be, Beryllium (ppm) | 1.28 | 0.098 | 1.25 | 1.31 | 4-Acid Digestion |
| Bi, Bismuth (ppm) | 4.14 | 0.176 | 4.03 | 4.25 | 4-Acid Digestion |
| Ca, Calcium (wt.%) | 1.56 | 0.024 | 1.55 | 1.57 | 4-Acid Digestion |
| Cd, Cadmium (ppm) | 27.0 | 1.21 | 26.4 | 27.6 | 4-Acid Digestion |
| Ce, Cerium (ppm) | 48.5 | 15.0 | 39.6 | 57.4 | 4-Acid Digestion |
| Co, Cobalt (ppm) | 7.42 | 0.590 | 7.06 | 7.77 | 4-Acid Digestion |
| Cr, Chromium (ppm) | 11.5 | 2.4 | 10.2 | 12.8 | 4-Acid Digestion |
| Cs, Caesium (ppm) | 5.03 | 0.115 | 4.99 | 5.07 | 4-Acid Digestion |
| Cu, Copper (ppm) | 521 | 11 | 516 | 526 | 4-Acid Digestion |
| Dy, Dysprosium (ppm) | 3.92 | 0.202 | 3.77 | 4.06 | 4-Acid Digestion |
| Er, Erbium (ppm) | 2.22 | 0.154 | 2.09 | 2.35 | 4-Acid Digestion |
| Eu, Europium (ppm) | 2.31 | 0.28 | 2.05 | 2.57 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 6.12 | 0.226 | 6.01 | 6.24 | 4-Acid Digestion |
| Ga, Gallium (ppm) | 15.9 | 2.7 | 14.5 | 17.4 | 4-Acid Digestion |
| Gd, Gadolinium (ppm) | 5.36 | 0.447 | 4.99 | 5.72 | 4-Acid Digestion |
| Hf, Hafnium (ppm) | 3.20 | 0.131 | 3.14 | 3.26 | 4-Acid Digestion |
| Ho, Holmium (ppm) | 0.76 | 0.037 | 0.73 | 0.79 | 4-Acid Digestion |
| In, Indium (ppm) | 0.35 | 0.019 | 0.35 | 0.36 | 4-Acid Digestion |
| K, Potassium (wt.%) | 1.79 | 0.053 | 1.76 | 1.81 | 4-Acid Digestion |
| La, Lanthanum (ppm) | 17.1 | 7.0 | 13.1 | 21.0 | 4-Acid Digestion |
| Li, Lithium (ppm) | 20.2 | 0.70 | 19.9 | 20.6 | 4-Acid Digestion |
| Lu, Lutetium (ppm) | 0.32 | 0.021 | 0.30 | 0.34 | 4-Acid Digestion |
| Mg, Magnesium (wt.%) | 0.837 | 0.019 | 0.827 | 0.847 | 4-Acid Digestion |
| Mn, Manganese (wt.%) | 3.39 | 0.122 | 3.33 | 3.46 | 4-Acid Digestion |
| Mo, Molybdenum (ppm) | 12.7 | 0.66 | 12.4 | 13.1 | 4-Acid Digestion |
| Na, Sodium (wt.%) | 0.721 | 0.029 | 0.706 | 0.737 | 4-Acid Digestion |
| Nb, Niobium (ppm) | 8.10 | 0.800 | 7.64 | 8.57 | 4-Acid Digestion |
| Nd, Neodymium (ppm) | 30.1 | 3.3 | 27.2 | 33.0 | 4-Acid Digestion |
| Ni, Nickel (ppm) | 35.1 | 1.17 | 34.5 | 35.7 | 4-Acid Digestion |
| P, Phosphorus (wt.%) | 0.045 | 0.003 | 0.044 | 0.047 | 4-Acid Digestion |
| Pb, Lead (wt.%) | 0.411 | 0.018 | 0.402 | 0.421 | 4-Acid Digestion |
| Pr, Praseodymium (ppm) | 7.27 | 0.94 | 6.45 | 8.09 | 4-Acid Digestion |
| Rb, Rubidium (ppm) | 102 | 5 | 99 | 104 | 4-Acid Digestion |
| Re, Rhenium (ppm) | < 0.002 | IND | IND | IND | 4-Acid Digestion |
| S, Sulphur (wt.%) | 5.17 | 0.146 | 5.08 | 5.25 | 4-Acid Digestion |
| Sb, Antimony (ppm) | 47.9 | 3.84 | 45.9 | 50.0 | 4-Acid Digestion |
| Sc, Scandium (ppm) | 6.29 | 0.330 | 6.12 | 6.47 | 4-Acid Digestion |
| Sm, Samarium (ppm) | 6.20 | 0.76 | 5.60 | 6.79 | 4-Acid Digestion |
| Sn, Tin (ppm) | 2.22 | 0.077 | 2.20 | 2.24 | 4-Acid Digestion |
| Sr, Strontium (ppm) | 385 | 110 | 325 | 444 | 4-Acid Digestion |
| Ta, Tantalum (ppm) | 0.58 | 0.054 | 0.54 | 0.61 | 4-Acid Digestion |
| Tb, Terbium (ppm) | 0.71 | 0.040 | 0.68 | 0.75 | 4-Acid Digestion |
| Te, Tellurium (ppm) | < 0.050 | IND | IND | IND | 4-Acid Digestion |
| Th, Thorium (ppm) | 7.49 | 1.70 | 6.56 | 8.42 | 4-Acid Digestion |
| Ti, Titanium (wt.%) | 0.200 | 0.017 | 0.191 | 0.209 | 4-Acid Digestion |
| Tl, Thallium (ppm) | 25.1 | 1.46 | 24.4 | 25.8 | 4-Acid Digestion |
| Tm, Thulium (ppm) | 0.32 | 0.018 | 0.30 | 0.34 | 4-Acid Digestion |
| U, Uranium (ppm) | 5.87 | 0.306 | 5.72 | 6.02 | 4-Acid Digestion |
| V, Vanadium (ppm) | 27.3 | 2.58 | 26.0 | 28.6 | 4-Acid Digestion |
| W, Tungsten (ppm) | 19.7 | 1.54 | 18.9 | 20.4 | 4-Acid Digestion |
| Y, Yttrium (ppm) | 18.4 | 0.93 | 17.9 | 18.9 | 4-Acid Digestion |
| Yb, Ytterbium (ppm) | 2.13 | 0.189 | 1.99 | 2.26 | 4-Acid Digestion |
| Zn, Zinc (wt.%) | 1.11 | 0.025 | 1.10 | 1.12 | 4-Acid Digestion |
| Zr, Zirconium (ppm) | 113 | 9 | 108 | 117 | 4-Acid Digestion |
| Ag, Silver (ppm) | 19.1 | 0.72 | 18.6 | 19.5 | Aqua Regia Digestion |
| Al, Aluminium (wt.%) | 1.09 | 0.077 | 1.04 | 1.13 | Aqua Regia Digestion |
| As, Arsenic (ppm) | 413 | 17 | 405 | 422 | Aqua Regia Digestion |
| Au, Gold (ppm) | 0.345 | 0.011 | 0.339 | 0.350 | Aqua Regia Digestion |
| B, Boron (ppm) | < 10.0 | IND | IND | IND | Aqua Regia Digestion |
| Be, Beryllium (ppm) | 0.27 | 0.04 | 0.24 | 0.30 | Aqua Regia Digestion |
| Bi, Bismuth (ppm) | 4.13 | 0.237 | 3.99 | 4.27 | Aqua Regia Digestion |
| Ca, Calcium (wt.%) | 1.46 | 0.054 | 1.43 | 1.49 | Aqua Regia Digestion |
| Cd, Cadmium (ppm) | 27.1 | 1.81 | 26.2 | 28.1 | Aqua Regia Digestion |
| Ce, Cerium (ppm) | 33.4 | 12.0 | 26.2 | 40.5 | Aqua Regia Digestion |
| Co, Cobalt (ppm) | 7.20 | 0.377 | 6.99 | 7.41 | Aqua Regia Digestion |
| Cr, Chromium (ppm) | 9.77 | 0.850 | 9.27 | 10.27 | Aqua Regia Digestion |
| Cs, Caesium (ppm) | 2.86 | 0.238 | 2.71 | 3.01 | Aqua Regia Digestion |
| Cu, Copper (ppm) | 523 | 20 | 513 | 533 | Aqua Regia Digestion |
| Fe, Iron (wt.%) | 5.79 | 0.192 | 5.70 | 5.89 | Aqua Regia Digestion |
| Ga, Gallium (ppm) | 3.98 | 0.369 | 3.73 | 4.24 | Aqua Regia Digestion |
| Hf, Hafnium (ppm) | 0.62 | 0.10 | 0.55 | 0.69 | Aqua Regia Digestion |
| Hg, Mercury (ppm) | 1.21 | 0.067 | 1.17 | 1.25 | Aqua Regia Digestion |
| In, Indium (ppm) | 0.33 | 0.018 | 0.32 | 0.34 | Aqua Regia Digestion |
| K, Potassium (wt.%) | 0.297 | 0.031 | 0.280 | 0.313 | Aqua Regia Digestion |
| La, Lanthanum (ppm) | 10.3 | 4.5 | 7.8 | 12.8 | Aqua Regia Digestion |
| Li, Lithium (ppm) | 7.71 | 0.82 | 7.24 | 8.19 | Aqua Regia Digestion |
| Mg, Magnesium (wt.%) | 0.609 | 0.026 | 0.596 | 0.623 | Aqua Regia Digestion |
| Mn, Manganese (wt.%) | 3.18 | 0.143 | 3.09 | 3.27 | Aqua Regia Digestion |
| Mo, Molybdenum (ppm) | 12.4 | 0.47 | 12.1 | 12.6 | Aqua Regia Digestion |
| Na, Sodium (wt.%) | 0.048 | 0.007 | 0.044 | 0.052 | Aqua Regia Digestion |
| Nb, Niobium (ppm) | 1.08 | 0.19 | 0.92 | 1.25 | Aqua Regia Digestion |
| Ni, Nickel (ppm) | 34.8 | 1.53 | 34.1 | 35.5 | Aqua Regia Digestion |
| P, Phosphorus (wt.%) | 0.044 | 0.002 | 0.043 | 0.045 | Aqua Regia Digestion |
| Pb, Lead (wt.%) | 0.408 | 0.021 | 0.397 | 0.419 | Aqua Regia Digestion |
| Rb, Rubidium (ppm) | 21.9 | 1.89 | 20.8 | 23.1 | Aqua Regia Digestion |
| S, Sulphur (wt.%) | 5.19 | 0.168 | 5.10 | 5.29 | Aqua Regia Digestion |
| Sb, Antimony (ppm) | 40.7 | 4.6 | 38.1 | 43.2 | Aqua Regia Digestion |
| Sc, Scandium (ppm) | 1.68 | 0.129 | 1.61 | 1.76 | Aqua Regia Digestion |
| Sn, Tin (ppm) | 0.65 | 0.09 | 0.59 | 0.71 | Aqua Regia Digestion |
| Tb, Terbium (ppm) | 0.43 | 0.07 | 0.33 | 0.52 | Aqua Regia Digestion |
| Th, Thorium (ppm) | 3.23 | 0.82 | 2.62 | 3.84 | Aqua Regia Digestion |
| Ti, Titanium (wt.%) | 0.069 | 0.012 | 0.062 | 0.075 | Aqua Regia Digestion |
| Tl, Thallium (ppm) | 8.47 | 0.711 | 8.04 | 8.90 | Aqua Regia Digestion |
| U, Uranium (ppm) | 3.34 | 0.279 | 3.19 | 3.49 | Aqua Regia Digestion |
| V, Vanadium (ppm) | 6.41 | 0.89 | 5.90 | 6.92 | Aqua Regia Digestion |
| W, Tungsten (ppm) | 12.3 | 0.69 | 11.9 | 12.7 | Aqua Regia Digestion |
| Y, Yttrium (ppm) | 10.1 | 0.60 | 9.8 | 10.5 | Aqua Regia Digestion |
| Yb, Ytterbium (ppm) | 0.76 | 0.10 | 0.65 | 0.87 | Aqua Regia Digestion |
| Zn, Zinc (wt.%) | 1.10 | 0.033 | 1.08 | 1.11 | Aqua Regia Digestion |
| Zr, Zirconium (ppm) | 23.1 | 2.5 | 21.7 | 24.5 | Aqua Regia Digestion |
| LOI1000, Loss on ignition @1000 °C (wt.%) | 11.46 | 0.746 | 10.87 | 12.06 | Thermogravimetry |
| S, Sulphur (wt.%) | 6.87 | 0.200 | 6.76 | 6.97 | Infrared Combustion |
Product Specifications
State
primary
Matrix
pyritic tailings
Mineralisation
volcanic hosted massive sulphide
Availability
available
Certified Reference Values
| Analyte | Certified Value | Uncertainty (1SD) | 95% Confidence Low | 95% Confidence High | Method |
|---|---|---|---|---|---|
| Ce - Cerium (ppm) | 48.5 | - | - | - | 4-Acid Digestion |
| Dy - Dysprosium (ppm) | 3.92 | - | - | - | 4-Acid Digestion |
| Er - Erbium (ppm) | 2.22 | - | - | - | 4-Acid Digestion |
| Eu - Europium (ppm) | 2.31 | - | - | - | 4-Acid Digestion |
| Gd - Gadolinium (ppm) | 5.36 | - | - | - | 4-Acid Digestion |
| Ho - Holmium (ppm) | 0.76 | - | - | - | 4-Acid Digestion |
| La - Lanthanum (ppm) | 17.1 | - | - | - | 4-Acid Digestion |
| Lu - Lutetium (ppm) | 0.32 | - | - | - | 4-Acid Digestion |
| Nd - Neodymium (ppm) | 30.1 | - | - | - | 4-Acid Digestion |
| Sm - Samarium (ppm) | 6.20 | - | - | - | 4-Acid Digestion |
| Tb - Terbium (ppm) | 0.71 | - | - | - | 4-Acid Digestion |
| Yb - Ytterbium (ppm) | 2.13 | - | - | - | 4-Acid Digestion |
| As - Arsenic (ppm) | 413 | - | - | - | Aqua Regia |
| Cu - Copper (ppm) | 523 | - | - | - | Aqua Regia |
| Hg - Mercury (ppm) | 1.21 | - | - | - | Aqua Regia |
| Ni - Nickel (ppm) | 34.8 | - | - | - | Aqua Regia |
SD = Standard Deviation | CL = 95% Confidence Limits
Methods: AR = Aqua Regia, 4-Acid = 4-Acid Digestion, LBF = Lithium Borate Fusion, FA/AAS = Fire Assay with Atomic Absorption, LECO = LECO Combustion Analysis
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