Description
DOWNLOAD AMIS CERTIFICATE (PDF)
Origin of Material
The CRM was produced from ore material from the Otjikoto gold deposit located in Namibia.
Approximate Mineral and Chemical Composition
Quartz-carbonate-sulphide veins dominated by pyrrhotite; magnetite in places. Pyrite occurs as accessory sulphide. Free gold up to +/- 70 %. Host rock is metamorphosed siliceous sedimentary units; albitisation, amphibole-sytle (granofels) and some carbonatisation. Rocks are primarily albitite and granofels (amphibolitic).
Recommended Concentrations and Limits (at two Standard Deviations)
Certified Concentrations
Analyte Method (µ) (2s) ± Unit
Au FA_GRAV 1.40 0.21 g/t
Au Pb Collection 1.39 0.15 g/t
C Combustion/LECO 1.91 0.14 %
S Combustion/LECO 2.34 0.11 %
S 4A_MICP 1.79 0.21 %
Moisture Moisture 0.12 0.02 %
SG SG 2.79 0.12 Dimensionless
Al 4A_MICP 6.34 0.44 %
Ba 4A_MICP 21 2 ppm
Be 4A_MICP 0.6 0.08 ppm
Ca 4A_MICP 3.68 0.11 %
Ce 4A_MICP 65 8 ppm
Co 4A_MICP 22 6 ppm
Cu 4A_MICP 319 7 ppm
La 4A_MICP 32 5 ppm
Li 4A_MICP 9 2 ppm
Mg 4A_MICP 1.75 0.18 %
Mn 4A_MICP 1100 122 ppm
Mo 4A_MICP 2 0.2 ppm
Na 4A_MICP 4.60 0.22 %
Ni 4A_MICP 51 7 ppm
P 4A_MICP 747 31 ppm
Pb 4A_MICP 2 1 ppm
Sc 4A_MICP 13 2 ppm
Sr 4A_MICP 77 4 ppm
Ti 4A_MICP 3921 282 ppm
V 4A_MICP 135 32 ppm
Y 4A_MICP 22 0.4 ppm
Zn 4A_MICP 27 6 ppm
Zr 4A_MICP 129 10 ppm
Major Oxides Certified Concentrations (at two Standard Deviations)
Analyte Method (µ) (2s) ± Unit
Al2O3 XRF 12.40 0.40 %
CaO XRF 5.40 0.092 %
Fe2O3 XRF 10.25 0.24 %
K2O XRF 0.15 0.01 %
MgO XRF 3.12 0.20 %
Na2O XRF 6.26 0.19 %
P2O5 XRF 0.17 0.02 %
SiO2 XRF 52.79 1.7 %
TiO2 XRF 0.71 0.04 %
