Description
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AMIS0314 PGM 4E 50.30g/t Merensky Western Limb Tailings Concentrate South Africa
Origin of Material: This standard was made using Pt/Pd tailings 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 pyrrhotite, 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 32.20 ± 3.16 g/t
Pd Pb Collection 11.35 ± 0.74 g/t
Au Pb Collection 2.53 ± 0.26 g/t
Pt NIS 34.17 ± 3.02 g/t
Pd NIS 11.74 ± 1.00 g/t
Au NIS 2.50 ± 0.26 g/t
Ru NiS 5.13 ± 0.52 g/t
Co M/ICP 242 ± 19 ppm
Co P 212 ± 24 ppm
Cu M/ICP 7326 ± 254 ppm
Cu P 7115 ± 322 ppm
Cu XRF 7183 ± 265 ppm
Ni M/ICP 8790 ± 868 ppm
Ni P 8429 ± 763 ppm
Ni XRF 9073 ± 681 ppm
Specific Gravity 3.11 ± 0.18
Provisional Concentrations
Ir NiS 0.91 ± 0.18 g/t
Rh 1.89 ± 0.24 g/t
Co XRF 271 ± 55 ppm
