Description
DOWNLOAD AMIS CERTIFICATE (PDF)
Origin of Material
The Merensky Reef underground sample material was supplied by Two Rivers Platinum (Pty) Ltd that is located in the Eastern Limb of the Bushveld complex.
Approximate Mineral and Chemical Composition
The minerals of interest include PGE-Sulphides, PGE-Asernides, PGE-Tellurides and PGE-Alloys. The silicate rocks consists of (predominantly) orthopyroxene and Plagioclase with minor constituents of diopside, biotite, serpentine and talk. Base metal sulphides such as nickel, Copper and Cobalt do occur in ppm concentrations. Elevated PGE values are found around 2 chromitite stringers with 2-5% sulfide mineralization in the upper and lower portion of the Merensky Reef. The sulfide mineralization is predominantly pyrrhotite, pentlandite, chalcopyrite and pyrite.
Summary Statistics Certified Concentrations
Au NiS 0.140 0.088 g/t
Au Pb Collection 0.164 0.040 g/t
Ir NiS 0.029 0.0068 g/t
Os NiS 0.02 0.004 ppm
Pd NiS 0.726 0.11 g/t
Pd Pb Collection 0.770 0.22 g/t
Pt NiS 1.41 0.23 g/t
Pt Pb Collection 1.52 0.18 g/t
Rh NiS 0.081 0.016 g/t
Rh Pb Collection 0.065 0.022 g/t
Ru NiS 0.173 0.051 g/t
Co 2A_MICP 31 3 ppm
Co 4A_MICP 93 6 ppm
Co FUS 102 14 ppm
Cr 2A_MICP 343 55 ppm
Cr FUS 5398 354 ppm
Cr XRF 5194 159 ppm
Cu 2A_MICP 691 92 ppm
Cu 4A_MICP 661 37 ppm
Cu FUS 669 58 ppm
Ni 2A_MICP 1042 186 ppm
Ni 4A_MICP 1521 96 ppm
Ni FUS 1497 191 ppm
S Combustion/LECO 0.34 0.02 %
S 4A_MICP 0.34 0.01 %
Ag 4A_MICP 0.3 0.06 ppm
Al 4A_MICP 4.72 0.11 %
Al FUS 4.66 0.45 %
Al XRF 4.69 0.12 %
As 4A_MICP 2 0.3 ppm
Ba 4A_MICP 61 4 ppm
Be 4A_MICP 0.5 0.09 ppm
Bi 4A_MICP 0.3 0.05 ppm
Ca 4A_MICP 3.96 0.12 %
Ca FUS 4.21 0.36 %
Cd 4A_MICP 0.1 0.03 ppm
Ce 4A_MICP 7 0.3 ppm
Cs 4A_MICP 0.3 0.08 ppm
Fe 4A_MICP 8.02 0.49 %
Fe FUS 7.81 0.75 %
Fe XRF 8.08 0.10 %
Ga 4A_MICP 8 0.9 ppm
La 4A_MICP 3 0.2 ppm
Li 4A_MICP 8 0.4 ppm
Mg 4A_MICP 11.39 0.97 %
Mg XRF 11.52 0.089 %
Mn 4A_MICP 1545 126 ppm
Mn FUS 1700 208 ppm
Mn XRF 1585 101 ppm
Mo 4A_MICP 0.8 0.1 ppm
Na XRF 6487 240 ppm
Nb 4A_MICP 91 23 ppm
P 4A_MICP 140 10 ppm
Pb 4A_MICP 10 2 ppm
Rb 4A_MICP 7 0.9 ppm
Re 4A_MICP 0.004 0.001 ppm
Sb 4A_MICP 3 0.5 ppm
Sc 4A_MICP 24 3 ppm
Se 4A_MICP 2 0.6 ppm
Si XRF 24.14 0.24 %
Sr 4A_MICP 133 10 ppm
Th 4A_MICP 0.8 0.06 ppm
Ti 4A_MICP 1352 60 ppm
Ti FUS 1485 279 ppm
Ti XRF 1466 73 ppm
Tl 4A_MICP 0.1 0.01 ppm
U 4A_MICP 0.7 0.06 ppm
V 4A_MICP 136 5 ppm
W 4A_MICP 1 0.3 ppm
Y 4A_MICP 6 0.8 ppm
Zn 4A_MICP 92 3 ppm
Zr 4A_MICP 14 1 ppm
Calculation 4E = Platinum (Pb Collection) + Palladium (Pb Collection) + Gold (Pb Collection) +
Rhodium (Pb Collection) = 2.519g/t
Calculation 6E = Platinum (NiS) + Palladium (NiS) + Gold (NiS) + Iridium (NiS)+ Ruthenium (NiS) +
Rhodium (NiS) =2.559g/t
Major Oxides
Al2O3 XRF 8.86 0.21 %
CaO FUS 5.89 0.50 %
Cr2O3 FUS 0.79 0.05 %
Cr2O3 XRF 0.76 0.02 %
Fe2O3 XRF 11.56 0.15 %
MgO XRF 19.15 0.066 %
MnO XRF 0.20 0.01 %
Na2O XRF 0.88 0.03 %
P2O5 XRF 0.030 0.001 %
SiO2 XRF 51.51 0.18 %
TiO2 XRF 0.24 0.01 %
