OREAS 170a Mn (45.06 wt.%) manganiferous sedimentary
OR170a_10g
Item: OR170a_10g
Unit of measure: ea
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Description:

OREAS 170a is a high grade supergene manganese ore matrix-matched certified reference material (MMCRM) prepared and certified by Ore Research & Exploration. 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. OREAS 170a is one of two MMCRMs characterised for MnO, Fe2O3, SiO2, Al2O3, MgO, CaO, TiO2, K2O, P2O5, Na2O and LOI via lithium borate fusion with XRF finish.

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AnalyteCertified Value1SD95% CI Low95% CI HighMethod
Al2O3, Aluminium(III) oxide (wt.%)4.440.054.414.47Borate Fusion XRF
CaO, Calcium oxide (wt.%)0.090.0040.0880.092Borate Fusion XRF
Fe2O3, Iron(III) oxide (wt.%)6.490.16.416.56Borate Fusion XRF
K2O, Potassium oxide (wt.%)1.70.031.671.72Borate Fusion XRF
MgO, Magnesium oxide (wt.%)0.2220.0210.2070.237Borate Fusion XRF
Mn, Manganese (wt.%)45.060.3644.7945.32Borate Fusion XRF
MnO, Manganese oxide (wt.%)58.170.46557.8358.51Borate Fusion XRF
Na2O, Sodium oxide (wt.%)0.2760.0340.0340.302Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%)0.1520.0050.1490.155Borate Fusion XRF
SiO2, Silicon dioxide (wt.%)11.340.0711.311.39Borate Fusion XRF
TiO2, Titanium dioxide (wt.%)0.1790.0050.1760.181Borate Fusion XRF
LOI1000, Loss On Ignition @1000°C (wt.%)12.140.0712.0912.19Thermogravimetry