OREAS 403

Reference material OREAS 403 is one of a suite of six CRMs sourced from hematite iron ore samples from the Spinifex Ridge deposit owned by Moly Mines Limited. Areas of enriched iron occur within the banded iron formation of the Gorge Creek Group located approximately 170km east of Port Hedland in Western Australia.

Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Fe, Iron (wt.%) 52.31 0.310 52.19 52.43 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 13.67 0.099 13.63 13.71 Borate Fusion XRF
P, Phosphorus (wt.%) 0.123 0.002 0.122 0.124 Borate Fusion XRF
Al2O3, Aluminium(III) oxide (wt.%) 2.63 0.032 2.62 2.64 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 0.106 0.005 0.104 0.108 Borate Fusion XRF
Cr2O3, Chromium(III) oxide (ppm) 109 15 98 120 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 0.011 0.002 0.010 0.011 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 0.077 0.015 0.068 0.086 Borate Fusion XRF
S, Sulphur (wt.%) 0.026 0.002 0.024 0.027 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 0.289 0.009 0.284 0.293 Borate Fusion XRF
V, Vanadium (ppm) 34.5 6.9 29.5 39.5 Borate Fusion XRF
LOI1000, Loss On Ignition @1000 °C (wt.%) 8.00 0.154 7.91 8.09 Thermogravimetry
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