Description
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AMIS0414 PGM 4E 3.922g/t Merensky South Africa
Origin of Material: AMIS0414 was made from material supplied by Anglo Platinum, using Merensky Reef underground sample material from the Western Limb of the Bushveld complex.
Mineral and Chemical Composition: The Merensky Reef 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.
Major element chemistry data from 13 of the labs has been compiled and certified. Uncertified summary statistics for trace element data are set out in the appendix.
Recommended Concentrations and Limits
(at two Standard Deviations)
Certified Concentrations
Pt Pb Collection 2.19 ± 0.18 g/t
Pd Pb Collection 1.38 ± 0.10 g/t
Pt NIS 2.20 ± 0.26 g/t
Pd NIS 1.37 ± 0.14 g/t
Co M/ICP 81 ± 5 ppm
Cu M/ICP 648 ± 35 ppm
Cu P 648 ± 43 ppm
Ni M/ICP 1406 ± 97 ppm
Ni P 1148 ± 74 ppm
Specific Gravity 3.03 ± 0.04 ppm
Provisional Concentrations
Au Pb Collection 0.16 ± 0.02 g/t
Ir NiS 0.07 ± 0.01 g/t
Rh 0.21 ± 0.04 g/t
Ru NiS 0.38 ± 0.06 g/t
Co P 45 ± 9 ppm
Ni XRF 1382 ± 181 ppm
Indicated Mean
Au NIS 0.15 g/t
