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 MG1 (collected material) 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
MG1 comprises of one chromitite layer.
Recommended Concentrations and Limits
Certified Concentrations (at two Standard Deviations)
Analyte Method Certified Value (µ) Two standard deviations (2s) ± Unit
Au NiS 0.054 0.016 g/t
Au Pb Collection 0.062 0.031 g/t
Ir NiS 0.065 0.013 g/t
Pd NiS 0.177 0.031 g/t
Pd Pb Collection 0.168 0.047 g/t
Pt NiS 0.259 0.018 g/t
Pt Pb Collection 0.253 0.072 g/t
Rh NiS 0.089 0.015 g/t
Rh Pb Collection 0.093 0.012 g/t
Ru NiS 0.459 0.040 g/t
4E FA_GRAV 0.500 0.091 g/t
Fe FUS 14.30 1.3 %
Ni FUS 721 57 ppm
Si FUS 9.08 0.67 %
SG SG 3.72 0.12 Dimensionless
Al FUS 6.03 0.33 %
Ba FUS 40 10 ppm
Ca FUS 1.72 0.17 %
Mg FUS 8.16 0.37 %
Mn FUS 1749 257 ppm
Sr FUS 33 10 ppm
Ti FUS 2815 505 ppm
V FUS 1300 229 ppm
Zn FUS 479 15 ppm
Calculated 4E (Pb Collection) = Gold + Palladium + Platinum + Rhodium= 0.576 g/t
Calculated 6E (NiS) = Gold + Iridium + Palladium + Platinum + Rhodium + Ruthenium = 1.103 g/t
Major Oxides
Certified Concentrations (at two Standard Deviations)
Analyte Method Certified Value (µ) Two standard deviations (2s) ± Unit
Al2O3 XRF 11.43 0.29 %
CaO XRF 2.47 0.13 %
Cr2O3 XRF 28.46 1.0 %
Fe2O3 XRF 21.95 0.79 %
K2O XRF 0.12 0.01 %
MgO XRF 13.37 1.4 %
SiO2 XRF 19.19 0.46 %
TiO2 XRF 0.51 0.04 %
V2O5 XRF 0.23 0.02 %
