Description
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AMIS0606 PGM 4E 4.727g/t UG2 Bushveld South Africa
Origin of Material
This reference material was made using UG2 PGM Head Grade material from the Bushveld Complex. The material was supplied by Northam Platinum’s Zondereinde Mine, located on the northern end of the western limb of the Bushveld Complex near the town of Thabazimbi.
Approximate Mineral and Chemical Composition
The UG2 chromitite ore consists of fine to medium size cumulus chromite grains with substantial amounts of post-cumulus orthopyroxene crystals. The footwall is a coarse grained pegmatoidal pyroxenite with sporadic occurrences of chromitite blebs, lenses and stringers. The hanging wall is predominantly fine to medium grained orthopyroxenite with three or more chromitite stringers referred to as the UG2 leaders. The concentrates produced have had most of the chromitite and some of the silicates removed.
Recommended Concentrations and Limits
(at two Standard Deviations)
Certified Concentrations
Analyte Method Certified (µ)7 (2s)9 ± Unit
Au NiS1 0.049 0.0078 g/t
Au Pb Collection2 0.046 0.024 g/t
Pd NiS 1.41 0.23 g/t
Pd Pb Collection 1.38 0.19 g/t
Pt NiS 2.74 0.24 g/t
Pt Pb Collection 2.81 0.24 g/t
Rh NiS 0.528 0.18 g/t
Rh Pb Collection 0.535 0.22 g/t
Ir NiS 0.218 0.022 g/t
Ru NiS 0.958 0.066 g/t
Cr FUS3 18.59 0.20 %
SG SG4 3.91 0.11 Dimensionless
C Combustion/LECO5 1317 255 ppm
Al FUS 6.52 0.24 %
Ca FUS 1.20 0.13 %
Fe FUS 16.52 0.34 %
Mg FUS 9.22 0.60 %
Ni FUS 1292 120 ppm
