OREAS 70P

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
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 1.31 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 0.117 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 0.044 0.113 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
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 43 675 819 4-Acid Digestion
Na, Sodium (ppm) 575 287 236 913 4-Acid Digestion
Cu, Copper (ppm) 2.60 0.66 1.00 4.20 4-Acid Digestion
P, Phosphorus (wt.%) ~0.005 Borate / Peroxide Fusion ICP
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 2.20 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 0.100 1.60 1.90 Aqua Regia Digestion
Au, Gold (ppb) 13.0 2.20 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 0.03 0.13 0.20 Aqua Regia Digestion
Zn, Zinc (ppm) 34.0 3.00 31.0 37.0 Aqua Regia Digestion
P, Phosphorus (ppm) 15.0 5.0 8.0 23.0 4-Acid Digestion
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Archived

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Information is provided for reference only.

Specifications