OREAS 163

OREAS 163 is a medium grade copper ore certified reference material (CRM)
prepared and certified by Ore Research & Exploration Pth Ltd. The material
was sourced from Xstrata’s Mt Isa copper ore deposits located near the township
of Mt Isa in north-west Queensland. The ore deposits are hosted by brecciated
siliceous and dolomitic rock masses within the Urquhart Shale comprising complex
and dissociated veins with chalcopyrite, pyrite and pyrrhotite with grades of
3-4% copper. OREAS 163 is one of a suite of seven CRMs characterised for Cu, Fe,
S, CaO, MgO, Al2O3, SiO2, Ag, Pb, Zn and Co by both sodium peroxide fusion ICP
and 4-acid ICP methods.

Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
Cu, Copper (wt.%) 1.71 0.080 1.65 1.76 Peroxide Fusion ICP
Fe, Iron (wt.%) 11.10 0.400 10.80 11.40 Peroxide Fusion ICP
Co, Cobalt (ppm) 230 11 222 238 4-Acid Digestion
Ag, Silver (ppm) 5.00 1.000 3.00 7.00 Peroxide Fusion ICP
Al2O3, Aluminium(III) oxide (wt.%) 3.16 0.080 3.11 3.22 Peroxide Fusion ICP
CaO, Calcium oxide (wt.%) 0.920 0.120 0.820 1.020 Peroxide Fusion ICP
Co, Cobalt (ppm) 230 10 224 237 Peroxide Fusion ICP
MgO, Magnesium oxide (wt.%) 5.34 0.210 5.18 5.50 Peroxide Fusion ICP
Pb, Lead (ppm) 461 65 411 511 Peroxide Fusion ICP
S, Sulphur (wt.%) 9.98 0.250 9.80 10.15 Peroxide Fusion ICP
SiO2, Silicon dioxide (wt.%) 63.40 1.800 62.10 64.70 Peroxide Fusion ICP
Zn, Zinc (ppm) 102 12 95 109 Peroxide Fusion ICP
Ag, Silver (ppm) 4.30 0.600 4.00 4.50 4-Acid Digestion
Al2O3, Aluminium(III) oxide (wt.%) 3.24 0.100 3.17 3.30 4-Acid Digestion
CaO, Calcium oxide (wt.%) 0.860 0.015 0.849 0.871 4-Acid Digestion
Cu, Copper (wt.%) 1.76 0.070 1.71 1.81 4-Acid Digestion
Fe, Iron (wt.%) 11.07 0.150 10.99 11.15 4-Acid Digestion
MgO, Magnesium oxide (wt.%) 5.42 0.120 5.34 5.50 4-Acid Digestion
Pb, Lead (ppm) 492 14 483 501 4-Acid Digestion
S, Sulphur (wt.%) 10.40 0.500 9.90 10.90 4-Acid Digestion
Zn, Zinc (ppm) 108 9 101 115 4-Acid Digestion
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  • 10g Sachet
    $3.15
Specifications
CRM Group

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Certificate Datapack SDS NRAM (221 KiB)