Description
DOWNLOAD AMIS CERTIFICATE (PDF)
Origin of Material
Tharisa mine is situated on the south-western limb of the Bushveld Complex, south of Marikana and approximately 30km east of Rustenburg in the Northwest province. The MG2 (collected material MG2A + 2B) chromitite seams and immediate hanging and footwall belong to the Middle Group of the Critical Zone of the Bushveld Complex.
Approximate Mineral and Chemical Composition
MG2 comprises of three chromitite layers separated by feldspathic pyroxenite.
Recommended Concentrations and Limits
Certified Concentrations (at two Standard Deviations)
Analyte Method Certified Value (µ) Two standard deviations (2s) ± Unit
Au NiS 0.039 0.01 g/t
Au Pb Collection 0.034 0.006 g/t
Ir NiS 0.080 0.07 g/t
Pd NiS 0.329 0.05 g/t
Pd Pb Collection 0.327 0.07 g/t
Pt NiS 1.08 0.15 g/t
Pt Pb Collection 1.07 0.18 g/t
Rh NiS 0.172 0.04 g/t
Rh Pb Collection 0.176 0.04 g/t
Ru NiS 0.410 0.04 g/t
4E FA_GRAV 1.47 0.23 g/t
Cr XRF 19.37 1.2 %
Fe FUS 15.54 0.34 %
Fe XRF 16.26 0.74 %
Ni FUS 850 46 ppm
Si FUS 9.00 0.26 %
C Combustion/LECO 2200 282 ppm
SG SG 3.89 0.14 Dimensionless
Co XRF 227 48 ppm
Calculated 4E (Pb Collection) = Gold + Palladium + Platinum + Rhodium= 1.607 g/t
Calculated 6E (NiS) = Gold + Iridium + Palladium + Platinum + Rhodium + Ruthenium = 2.110 g/t
Major Oxides
Certified Concentrations (at two Standard Deviations)
Analyte Method Certified Value (µ) Two standard deviations (2s) ± Unit
Al2O3 XRF 12.50 0.29 %
CaO XRF 2.41 0.29 %
Cr2O3 FUS 27.64 2.3 %
Cr2O3 XRF 28.46 1.7 %
K2O XRF 0.097 0.01 %
Na2O XRF 0.23 0.04 %
TiO2 XRF 0.60 0.06 %
V2O5 XRF 0.26 0.03 %
