Specifications
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CRM State:
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Matrix:
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Mineralisation:
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:
Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits 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 |
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