Description
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AMIS0557 Cr2O3 44.1% Norite & Feldspathic Pyroxenite South Africa
Origin of Material
The chromitite layers within the Critical Zone occur as three stratigraphically delineated groups. The Lower Group (“LG”) consists of seven chromitite layers hosted within a feldsphatic pyroxenite. Four chromitite layers contained within a norite and feldspathic pyroxenite sequence constituting the Middle Group (“MG”) which is situated immediately between the Lower Group and the Upper.
Approximate Mineral and Chemical Composition
This material I a metallurgical concentrate mixture of MG1/MG2 wit approximate concentration of 44% for Cr2O3.
Analyte Method Certified (µ) Two Standard Deviation (2s) ± Unit
Al2O3 XRF1 15.0 0.32 %
Cr2O3 XRF 44.1 0.49 %
Fe2O3 XRF 29.7 0.65 %
MgO XRF 9.46 0.43 %
MnO XRF 0.23 0.03 %
SiO2 XRF 1.7 0.1 %
TiO2 XRF 0.75 0.05 %
SG SG2 4.49 0.14 Dimensionless
GOI LOI3 1.89 0.19 %
Analyte Method Certified (µ) Two Standard Deviation (2s) ± Unit
Ag 4A_MICP4 1 0.3 ppm
Cu 4A_MICP 23 8 ppm
Dy 4A_MICP 0.06 0.02 ppm
Gd 4A_MICP 0.07 0.04 ppm
Hf 4A_MICP 0.1 0.05 ppm
La 4A_MICP 0.4 0.3 ppm
Li 4A_MICP 2 0.4 ppm
Na 4A_MICP 295 17 ppm
Nd 4A_MICP 0.3 0.1 ppm
Pb 4A_MICP 10 2 ppm
Pr 4A_MICP 0.1 0.1 ppm
Sb 4A_MICP 3 1 ppm
Sc 4A_MICP 7 3 ppm
Sm 4A_MICP 0.1 0.04 ppm
Sn 4A_MICP 0.5 0.2 ppm
Sr 4A_MICP 5 1 ppm
Te 4A_MICP 0.2 0.1 ppm
Th 4A_MICP 0.1 0.1 ppm
Y 4A_MICP 0.3 0.1 ppm
Zr 4A_MICP 4 2 ppm
