Description
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AMIS0390 Cr 31.31% LG6 Foundry Grade Bushveld ZA
Origin of Material
This standard was made using LG6 foundry grade material supplied by Glencore Xstrata plc from the Kroondal Chrome Mine. The mine is situated on the Western Limb of the Bushveld Complex 12km south east of Rustenburg in the North West Province of South Africa. The standard comprises of LG6 foundry grade. The foundry is a concentrated product derived from mining the LG6 chromitite layer, the LG6 middling pyroxenite and the LG6A chromitite layer which occurs in the lower portion of the Critical Zone.
Approximate Mineral and Chemical Composition
The LG6 foundry consists of chromite concentrate derived from the mining of the LG6 and LG6A chromitite layers. The LG6 foundry consist mainly of fine to medium size liberated chromite grains with minor liberated pyroxene and plagioclase grains. Major element chemistry data from eleven of the labs has been compiled and certified. Uncertified summary statistics for trace element data are set out in the appendix.
Recommended Concentrations and Limits
(at two Standard Deviations)
Certified Concentrations
Analyte Method Certified (µ) (2s) ± Unit
Cr FUS1 30.98 2.4 %
Cr XRF2 31.31 0.31 %
SG SG3 4.51 0.35 Dimensionless
Al FUS 7.96 0.32 %
Al 4A_MICP4 7.63 0.70 %
Ce 4A_MICP 0.3 0.07 ppm
Co FUS 279 49 ppm
Co 4A_MICP 271 63 ppm
Fe FUS 19.95 0.95 %
Mg FUS 5.79 0.23 %
Mg 4A_MICP 5.32 0.56 %
Mn FUS 1856 195 ppm
Mn 4A_MICP 1679 200 ppm
Ni FUS 943 203 ppm
Ni 4A_MICP 837 172 ppm
Sn 4A_MICP 0.8 0.2 ppm
Sr 4A_MICP 1 0.7 ppm
Ti FUS 4158 355 ppm
V FUS 2145 261 ppm
Y 4A_MICP 0.2 0.1 ppm
Zn 4A_MICP 661 125 ppm
