Description
DOWNLOAD AMIS CERTIFICATE (PDF)
Origin of Material
They are from the Newmont Ahafo gold mine which is located along the Sefwi Volcanic Belt, in the Ahafo region approximately 307 km from the nation’s capital, Accra.
Approximate Mineral and Chemical Composition
Gold typically occurs as native gold, associated with pyrite. Alteration associated with the deposits includes silicification, albitization, pyritization, and carbonation.
Summary Statistics
Recommended Concentrations and Limits (at two Standard Deviations)
Certified Concentrations
Au Pb Collection 1.52 0.22 g/t
Au CL 1.46 0.15 g/t
Cu 4A_MICP 53 10 ppm
C Combustion/LECO 2.13 0.052 %
S 4A_MICP 0.50 0.03 %
LOI LOI 8.50 0.21 %
Ca 4A_MICP 4.40 0.13 %
Ce 4A_MICP 96 4 ppm
Co 4A_MICP 19 2 ppm
Fe 4A_MICP 3.67 0.30 %
K 4A_MICP 1.91 0.21 %
Mg 4A_MICP 2.37 0.19 %
Mn 4A_MICP 663 92 ppm
Ni 4A_MICP 67 3 ppm
Ti 4A_MICP 2926 163 ppm
V 4A_MICP 94 3 ppm
Zn 4A_MICP 63 5 ppm
Major Oxides Certified Concentrations (at two Standard Deviations)
Al2O3 6 XRF 14.66 0.74 %
CaO XRF 6.32 0.10 %
Fe2O3 XRF 5.34 0.065 %
K2O XRF 2.33 0.073 %
MgO XRF 4.16 0.36 %
Na2O XRF 4.38 0.41 %
P2O5 XRF 0.31 0.01 %
SiO2 XRF 53.18 0.86 %
