Specifications
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CRM State:
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Matrix:
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Mineralisation:
OREAS 70P is a multi-element reference material sourced from poorly mineralised komatiite-associated altered dunite from WMC’s Mount Keith Nickel Operations in the Archaean Agnew-Wiluna greenstone belt, northern Yilgarn area, Western Australia.
Analyte | Certified Value | 1SD | 95% Confidence Limits Low | 95% Confidence Limits High | Method |
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Ni, Nickel (ppm) | 2730 | 87 | 2620 | 2841 | 4-Acid Digestion |
Co, Cobalt (ppm) | 91 | 2.5 | 88 | 94 | 4-Acid Digestion |
Pt, Platinum (ppb) | 0.500 | 0.200 | 0.200 | 0.900 | Pb Fire Assay |
Au, Gold (ppb) | 13.0 | 3.00 | 9.0 | 16.0 | Pb Fire Assay |
Pd, Palladium (ppb) | < 2.00 | IND | IND | IND | Pb Fire Assay |
LOI1000, Loss On Ignition @1000°C (wt.%) | 15.74 | 0.145 | 15.56 | 15.92 | Thermogravimetry |
Al, Aluminium (wt.%) | 0.330 | 0.030 | 0.300 | 0.360 | Borate / Peroxide Fusion ICP |
Ba, Barium (ppm) | 6.50 | 1.35 | 3.00 | 9.90 | Borate / Peroxide Fusion ICP |
Ca, Calcium (wt.%) | 0.250 | 0.010 | 0.250 | 0.260 | Borate / Peroxide Fusion ICP |
Ce, Cerium (ppm) | 0.90 | 0.20 | 0.70 | 1.20 | Borate / Peroxide Fusion ICP |
Cr, Chromium (wt.%) | 0.098 | 0.010 | 0.089 | 0.108 | Borate / Peroxide Fusion ICP |
Dy, Dysprosium (ppm) | 0.11 | 0.010 | 0.07 | 0.15 | Borate / Peroxide Fusion ICP |
Er, Erbium (ppm) | ~0.100 | Borate / Peroxide Fusion ICP | |||
Eu, Europium (ppm) | < 0.10 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Fe, Iron (wt.%) | 3.98 | 0.115 | 3.83 | 4.12 | Borate / Peroxide Fusion ICP |
Gd, Gadolinium (ppm) | ~0.100 | Borate / Peroxide Fusion ICP | |||
Ho, Holmium (ppm) | < 0.10 | IND | IND | IND | Borate / Peroxide Fusion ICP |
K, Potassium (wt.%) | < 0.030 | IND | IND | IND | Borate / Peroxide Fusion ICP |
La, Lanthanum (ppm) | 0.60 | 0.10 | 0.50 | 0.70 | Borate / Peroxide Fusion ICP |
Lu, Lutetium (ppm) | < 0.050 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Mg, Magnesium (wt.%) | 25.20 | 0.250 | 24.86 | 25.55 | Borate / Peroxide Fusion ICP |
Mn, Manganese (wt.%) | 0.063 | 0.003 | 0.061 | 0.064 | Borate / Peroxide Fusion ICP |
Na, Sodium (wt.%) | 0.079 | 0.030 | 0.040 | 0.110 | Borate / Peroxide Fusion ICP |
Nb, Niobium (ppm) | < 1.00 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Nd, Neodymium (ppm) | ~0.50 | Borate / Peroxide Fusion ICP | |||
P, Phosphorus (wt.%) | ~0.005 | Borate / Peroxide Fusion ICP | |||
Pr, Praseodymium (ppm) | 0.11 | 0.010 | 0.09 | 0.12 | Borate / Peroxide Fusion ICP |
Rb, Rubidium (ppm) | ~0.70 | Borate / Peroxide Fusion ICP | |||
Si, Silicon (wt.%) | 16.31 | 0.300 | 15.90 | 16.72 | Borate / Peroxide Fusion ICP |
Sm, Samarium (ppm) | ~0.100 | Borate / Peroxide Fusion ICP | |||
Sn, Tin (ppm) | < 1.00 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Sr, Strontium (ppm) | 3.90 | 0.300 | 3.50 | 4.30 | Borate / Peroxide Fusion ICP |
Tb, Terbium (ppm) | < 2.00 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Th, Thorium (ppm) | < 1.00 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Ti, Titanium (wt.%) | 0.019 | 0.004 | 0.014 | 0.025 | Borate / Peroxide Fusion ICP |
Tm, Thulium (ppm) | < 0.050 | IND | IND | IND | Borate / Peroxide Fusion ICP |
U, Uranium (ppm) | < 0.50 | IND | IND | IND | Borate / Peroxide Fusion ICP |
Y, Yttrium (ppm) | 0.80 | 0.10 | 0.70 | 0.90 | Borate / Peroxide Fusion ICP |
Yb, Ytterbium (ppm) | ~0.100 | Borate / Peroxide Fusion ICP | |||
Zr, Zirconium (ppm) | 6.30 | 1.70 | 3.80 | 8.80 | Borate / Peroxide Fusion ICP |
Ag, Silver (ppm) | < 0.500 | IND | IND | IND | 4-Acid Digestion |
As, Arsenic (ppm) | 2.50 | 0.95 | 1.20 | 3.90 | 4-Acid Digestion |
Bi, Bismuth (ppm) | < 0.010 | IND | IND | IND | 4-Acid Digestion |
Cd, Cadmium (ppm) | < 0.20 | IND | IND | IND | 4-Acid Digestion |
Cr, Chromium (ppm) | 747 | 44 | 675 | 819 | 4-Acid Digestion |
Cu, Copper (ppm) | 2.60 | 0.65 | 1.00 | 4.20 | 4-Acid Digestion |
Pb, Lead (ppm) | < 2.00 | IND | IND | IND | 4-Acid Digestion |
Sb, Antimony (ppm) | 0.58 | 0.10 | 0.47 | 0.69 | 4-Acid Digestion |
Zn, Zinc (ppm) | 35.0 | 287.5 | 33.0 | 37.0 | 4-Acid Digestion |
C, Carbon (wt.%) | 0.390 | 0.040 | 0.350 | 0.430 | Infrared Combustion |
S, Sulphur (wt.%) | 0.064 | 0.008 | 0.054 | 0.074 | Infrared Combustion |
Ag, Silver (ppm) | 0.020 | 0.005 | 0.020 | 0.030 | Aqua Regia Digestion |
As, Arsenic (ppm) | 1.80 | 0.150 | 1.60 | 1.90 | Aqua Regia Digestion |
Au, Gold (ppb) | 13.0 | 2.50 | 9.0 | 16.0 | Aqua Regia Digestion |
Bi, Bismuth (ppm) | < 0.010 | IND | IND | IND | Aqua Regia Digestion |
Cd, Cadmium (ppm) | < 0.020 | IND | IND | IND | Aqua Regia Digestion |
Co, Cobalt (ppm) | 83 | 5.5 | 76 | 89 | Aqua Regia Digestion |
Cr, Chromium (ppm) | 705 | 24 | 676 | 733 | Aqua Regia Digestion |
Cu, Copper (ppm) | 2.60 | 0.70 | 1.40 | 3.80 | Aqua Regia Digestion |
Ni, Nickel (ppm) | 2438 | 194 | 2222 | 2655 | Aqua Regia Digestion |
Pb, Lead (ppm) | < 1.00 | IND | IND | IND | Aqua Regia Digestion |
Pd, Palladium (ppb) | < 1.00 | IND | IND | IND | Aqua Regia Digestion |
Pt, Platinum (ppb) | < 2.00 | IND | IND | IND | Aqua Regia Digestion |
Sb, Antimony (ppm) | 0.17 | 0.04 | 0.13 | 0.20 | Aqua Regia Digestion |
Zn, Zinc (ppm) | 34.0 | 3.00 | 31.0 | 37.0 | Aqua Regia Digestion |
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