OREAS 171 Mn (35.10 wt.%) manganiferous sedimentary
OR171_10g
Item: OR171_10g
Unit of measure: ea
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Description:

OREAS 171 is a supergene manganese ore matrix-matched certified reference material (MMCRM) prepared and certified by Ore Research & Exploration Pty Ltd. The material was sourced from the Groote Eylandt Mining Company Pty Ltd (GEMCO) Mn deposit which is hosted within a shallow dipping Lower Cretaceous sedimentary rock unit. Groote Eylandt is in the Gulf of Carpentaria off the coast of Australia's Northern Territory. A portion (22%) of barren siltstone sourced from a quarry north of Melbourne, Australia was added to lower the grade. OREAS 171 is one of a suite of four Mn ore MMCRMs certified by borate fusion XRF covering a Mn grade range of 35-46%.

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AnalyteCertified Value1SD95% CI Low95% CI HighMethod
Al2O3, Aluminium(III) oxide (wt.%)7.320.1237.257.39Borate Fusion XRF
BaO, Barium oxide (wt.%)0.2470.0110.2410.253Borate Fusion XRF
CaO, Calcium oxide (wt.%)0.0810.0070.0780.084Borate Fusion XRF
Fe, Iron (wt.%)3.660.0343.643.68Borate Fusion XRF
K2O, Potassium oxide (wt.%)2.050.032.042.07Borate Fusion XRF
MgO, Magnesium oxide (wt.%)0.2170.0160.2080.226Borate Fusion XRF
Mn, Manganese (wt.%)35.10.16735.0235.18Borate Fusion XRF
Na2O, Sodium oxide (wt.%)0.2360.0150.2270.244Borate Fusion XRF
P, Phosphorus (ppm)66324648677Borate Fusion XRF
SiO2, Silicon dioxide (wt.%)24.820.1724.7424.9Borate Fusion XRF
TiO2, Titanium dioxide (wt.%)0.3360.0090.3310.341Borate Fusion XRF
V2O5, Vanadium(V) oxide (ppm)41845386450Borate Fusion XRF
LOI1000, Loss On Ignition @1000°C (wt.%)10.540.14810.4510.63Thermogravimetry