Description
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AMIS0723 PGM 4E 0.994 g/t MG2 Bushveld South Africa
Origin of Material
A composite of ore mined at Tharisa Mine consisting of the MG4A chromitite seam and the MG1 chromitite seam. Tharisa mine is situated on the western limb of the Bushveld Complex, south of Marikana and approximately 30km east of Rustenburg in the North West province. The MG1 and MG4A chromitite seams belong to the Middle Group of the Critical Zone of the Bushveld Complex.
Approximate Mineral and Chemical Composition
MG4A comprises of a single layer to multiple chromitite layers separated by feldspathic pyroxenite. MG1 comprises of chromitite layer
Recommended Concentrations and Limits
(at two Standard Deviations)
Certified Concentrations
Analyte Method 6(µ) 8(2s) ± Unit
4E 1Pb Collection 0.994 0.21 g/t
Au 2NiS 0.294 0.12 g/t
Au Pb Collection 0.353 0.086 g/t
Ir NiS 0.050 0.02 g/t
Pd NiS 0.128 0.035 g/t
Pd Pb Collection 0.136 0.049 g/t
Pt NiS 0.421 0.11 g/t
Pt Pb Collection 0.421 0.11 g/t
Rh NiS 0.086 0.03 g/t
Rh Pb Collection 0.090 0.05 g/t
Ru NiS 0.265 0.044 g/t
Cr 3FUS 12.44 1.2 %
Cr 4XRF 12.42 0.40 %
Fe XRF 12.99 0.32 %
Si XRF 14.67 0.24 %
Co FUS 174 10 ppm
Ni FUS 628 64 ppm
SG 5SG 3.51 0.23 Dimensionless
Major Oxides
Certified Concentrations (at two Standard Deviations)
Analyte Method 6(µ) 8(2s) ± Unit
Al2O3 XRF 12.75 0.24 %
CaO XRF 3.83 0.17 %
Cr2O3 FUS 18.18 1.7 %
Cr2O3 XRF 18.15 0.59 %
Fe2O3 XRF 18.57 0.46 %
K2O XRF 0.14 0.02 %
MgO XRF 13.22 0.64 %
MnO XRF 0.20 0.02 %
SiO2 XRF 31.21 0.50 %
TiO2 XRF 0.56 0.04 %
