Description
DOWNLOAD AMIS CERTIFICATE (PDF)
Recommended Concentrations and Limits
Certified Concentrations (at two Standard Deviations)
Au NiS 0.286 0.055 g/t
Au Pb Collection 0.296 0.041 g/t
Ir NiS 0.047 0.031 g/t
Pd NiS 1.81 0.10 g/t
Pd Pb Collection 1.65 0.26 g/t
Pt NiS 1.59 0.11 g/t
Pt Pb Collection 1.47 0.22 g/t
Rh NiS 0.145 0.033 g/t
Rh Pb Collection 0.126 0.033 g/t
Ru NiS 0.163 0.059 g/t
Co 2A_MICP 49 9 ppm
Co 4A_MICP 83 6 ppm
Co FUS 82 9 ppm
Cr FUS 1890 229 ppm
Cu 2A_MICP 1091 98 ppm
Cu 4A_MICP 1096 78 ppm
Cu FUS 1151 130 ppm
Ni 2A_MICP 1754 224 ppm
Ni FUS 1902 244 ppm
C Combustion/LECO 1395 141 ppm
S Combustion/LECO 0.58 0.06 %
S 2A_MICP 0.59 0.03 %
S FUS 0.59 0.08 %
SG SG 2.98 0.077 Dimensionless
Ag 2A_MICP 0.6 0.3 ppm
Ag 4A_MICP 0.5 0.1 ppm
Al 4A_MICP 6.45 0.76 %
Al FUS 6.40 0.27 %
As 2A_MICP 4 2 ppm
As 4A_MICP 5 1 ppm
Ba 4A_MICP 186 30 ppm
Ba FUS 195 41 ppm
Be 4A_MICP 1 0.2 ppm
Bi 4A_MICP 0.7 0.06 ppm
Ca 4A_MICP 4.65 0.28 %
Ca FUS 4.61 0.19 %
Cs 4A_MICP 2 0.07 ppm
Fe 4A_MICP 6.09 0.21 %
Fe FUS 6.16 0.62 %
Ga 4A_MICP 14 3 ppm
Hf 4A_MICP 0.6 0.09 ppm
In 4A_MICP 0.04 0.005 ppm
K 4A_MICP 4079 568 ppm
La 4A_MICP 7 0.4 ppm
Li 4A_MICP 27 1 ppm
Mg FUS 7.98 0.73 %
Mn 2A_MICP 444 102 ppm
Mn 4A_MICP 1307 78 ppm
Mn FUS 1328 234 ppm
Mo 4A_MICP 0.5 0.3 ppm
Na 4A_MICP 1.77 0.058 %
Nb 4A_MICP 3 0.4 ppm
P 4A_MICP 290 61 ppm
Pb 4A_MICP 10 0.8 ppm
Rb 4A_MICP 20 2 ppm
Sc 2A_MICP 3 0.6 ppm
Sc 4A_MICP 18 3 ppm
Si FUS 24.71 0.68 %
Sr 4A_MICP 281 28 ppm
Sr FUS 314 71 ppm
Ta 4A_MICP 0.5 0.2 ppm
Th 4A_MICP 1 0.2 ppm
Ti 4A_MICP 1290 155 ppm
Ti FUS 1408 180 ppm
Tl 4A_MICP 0.2 0.03 ppm
U 4A_MICP 3 0.4 ppm
V 4A_MICP 87 7 ppm
Y 4A_MICP 6 0.7 ppm
Y FUS 7 3 ppm
Zn 4A_MICP 68 21 ppm
Zr 4A_MICP 19 6 ppm
Calculated 4E (Pb Collection) = Gold + Palladium + Platinum + Rhodium= 3.541 g/t
Calculated 6E (NiS) = Gold + Iridium + Palladium + Platinum + Rhodium + Ruthenium = 4.041 g/t
Major Oxides
Certified Concentrations (at two Standard Deviations)
Al2O3 XRF 12.18 0.31 %
CaO XRF 6.52 0.090 %
Cr2O3 XRF 0.27 0.02 %
Fe2O3 XRF 8.62 0.11 %
K2O XRF 0.46 0.02 %
MgO XRF 13.17 0.94 %
Na2O XRF 2.39 0.24 %
P2O5 XRF 0.063 0.01 %
SiO2 XRF 52.54 1.9 %
TiO2 XRF 0.22 0.01 %
V2O5 XRF 0.019 0.003 %
Origin of Material
The material was supplied by Anglo Platinum from Mokgalakwena Mine. The lowermost Bushveld unit over much of the limb is the upper sections of the Critical Zone. A sulphide bearing composite pyroxenite layer of variable thickness occurring near the base of the main layered mafic mass is known as the Platreef and hosts the important PGE deposits with associated Cu & Ni at Mokopane where it rests on basement.
Approximate Mineral and Chemical Composition
Platreef is a Pt/Pd/Ni/Cu ore. Mineralization in this Platreef comprises 2-5% disseminated or net textured magmatic sulphides, mainly pyrrhotite, pentlandite and chalcopyrite. The PGE’s occur as micron-sized satellite grains around but rarely within the sulphides.
