Description
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Origin of Material: This standard was made using Merensky concentrate material supplied by Anglo Platinum Limited from the Western Limb of the Bushveld Complex.
Mineral and Chemical Composition: This material is predominantly or wholly derived from Merensky Reef which comprises components of feldspathic pyroxenite, pyroxenite and anorthosite. Peak PGE values are associated with a thin chromitite stringer. Mineralization in this Merensky Reef comprises 2-5% disseminated or net textured magmatic sulphides, predominantly pyrhotite, pentlandite, chalcopyrite and pyrite. The PGE’s occur as micron-sized satellite grains around but rarely within the sulphides
Recommended Concentrations and Limits
(at two Standard Deviations)
Certified Concentrations
Pt Pb Collection 77.3 ± 8.7 g/t
Pd Pb Collection 41.2 ± 2.7 g/t
Pt NIS 79.3 ± 4.4 g/t
Pd NIS 41.8 ± 2.1 g/t
Rh 13.7 ± 0.8 g/t
Co M/ICP 395 ± 22.0 ppm
Co P 362 ± 28.6 ppm
Cu M/ICP 7615 ± 612 ppm
Cu P 7455 ± 379 ppm
Ni M/ICP 1.29 ± 0.08 %
Pb M/ICP 160.2 ± 17 ppm
Specific Gravity 3.15 ± 0.16
Provisional Concentration
Au Pb Collection 1.54 ± 0.17 g/t
