OREAS 161 Cu (0.4 wt.%) shale/ siliceous dolomite
OR161_10g
Item: OR161_10g
Unit of measure: ea
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Description:

OREAS 161 is a low 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 161 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.

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AnalyteCertified Value1SD95% CI Low95% CI HighMethod
Ag, Silver (ppm)1.10.111.021.174-Acid Digestion
Al2O3, Aluminium(III) oxide (wt.%)2.490.122.42.584-Acid Digestion
CaO, Calcium oxide (wt.%)0.1580.0090.1520.1644-Acid Digestion
Co, Cobalt (ppm)11931171204-Acid Digestion
Cu, Copper (wt.%)0.4090.0120.4020.4164-Acid Digestion
Fe, Iron (wt.%)4.260.124.174.354-Acid Digestion
MgO, Magnesium oxide (wt.%)3.720.073.673.774-Acid Digestion
Pb, Lead (ppm)135101281434-Acid Digestion
S, Sulphur (wt.%)3.060.172.923.24-Acid Digestion
Zn, Zinc (ppm)22615294-Acid Digestion
Ag, Silver (ppm)5INDINDINDPeroxide Fusion ICP
Al2O3, Aluminium(III) oxide (wt.%)2.510.052.482.54Peroxide Fusion ICP
CaO, Calcium oxide (wt.%)0.160.020.130.18Peroxide Fusion ICP
Co, Cobalt (ppm)11911111127Peroxide Fusion ICP
Cu, Copper (wt.%)0.40.0130.3910.409Peroxide Fusion ICP
Fe, Iron (wt.%)4.320.174.24.44Peroxide Fusion ICP
MgO, Magnesium oxide (wt.%)3.590.173.473.72Peroxide Fusion ICP
Pb, Lead (ppm)1092193125Peroxide Fusion ICP
S, Sulphur (wt.%)2.960.052.942.99Peroxide Fusion ICP
SiO2, Silicon dioxide (wt.%)84.22.682.286.3Peroxide Fusion ICP
Zn, Zinc (ppm)194632Peroxide Fusion ICP