Description
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AMIS0664 Cr2O3 42.79% Feldspathic Pyroxenite South Africa
Origin of Material
The chromite 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.
Recommended Concentrations and Limits
(at two Standard Deviations)
Certified Concentrations
Analyte Method Certified (µ)6 (2s)8 ± Unit
C Combustion/LECO1 665 141 ppm
SG SG2 4.44 0.31 Dimensionless
Al FUS3 8.00 0.36 %
Be 4A_MICP4 1 0.3 ppm
Ce 4A_MICP 0.7 0.1 ppm
Co FUS 267 59 ppm
Cs 4A_MICP 0.3 0.2 ppm
Fe FUS 19.25 0.90 %
La 4A_MICP 0.3 0.05 ppm
Li 4A_MICP 115 9 ppm
Li FUS 106 23 ppm
Mg FUS 6.21 0.26 %
Mn FUS 1670 82 ppm
Ni 4A_MICP 819 90 ppm
Pb 4A_MICP 88 13 ppm
Pb FUS 96 14 ppm
Sc 4A_MICP 9 0.8 ppm
Si FUS 2.05 0.19 %
Ti FUS 4007 437 ppm
V 4A_MICP 1959 304 ppm
V FUS 1969 245 ppm
Major Oxides
Certified Concentrations (at two Standard Deviations)
Analyte Method Certified (µ)6 (2s)8 ± Unit
Cr2O3 XRF5 42.79 0.37 %
Al2O3 FUS 15.10 0.67 %
Fe2O3 FUS 27.52 1.3 %
Fe2O3 XRF 27.54 0.28 %
MgO FUS 10.31 0.43 %
MgO XRF 10.43 0.19 %
MnO FUS 0.22 0.01 %
SiO2 FUS 4.38 0.41 %
SiO2 XRF 4.27 0.11 %
TiO2 FUS 0.67 0.07 %
TiO2 XRF 0.66 0.02 %
V2O5 FUS 0.35 0.04 %
V2O5 XRF 0.36 0.04 %
