Description
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AMIS0433 Cu 158ppm Co 20ppm Au 14ppb Ferralsol Zambia
Origin of Material: This standard was made using soil material collected from the Kansanshi Mine, located in the North Western Province of Zambia1.. The mine is located approximately 10 kilometres north of the town of Solwezi, 180 kilometres to the northwest of the Copperbelt town of Chingola and 16 kilometres south of the Democratic Republic of Congo border.
Mineral and Chemical Composition. This CRM is made from a tropical ferralsol soil. These are the classical deeply weathered red or yellow soils of the humid tropics. They are dominated by low activity clays, mainly kaolinite and sesquioxides. Globally large contiguous areas of Ferralsols are found on old geomorphic surfaces, such as the Congo Basin and the Amazon Shield, on peneplained surfaces that typically comprise mid to end-Tertiary deposits. This particular ferralsol has an elevated metals content, particularly copper, reflecting its origin in a copper rich environment.
Recommended Concentrations and two “Between Laboratory” Standard Deviations
Certified Concentrations
Co M/ICP 20.1 ± 2.4 ppm
Cu M/ICP 158 ± 9 ppm
Cu P 128 ± 21 ppm
Ni M/ICP 43 ± 4 ppm
Specific Gravity 2.71 ± 0.12
Provisional Concentrations
As M/ICP 3.5 ± 0.9 ppm
As P 2.2 ± 0.6 ppm
Co P 17.0 ± 2.2 ppm
Ni P 26 ± 3 ppm
Pb M/ICP 13 ± 3 ppm
Pb P 9.8 ± 1.2 ppm
Zn M/ICP 32.5 ± 6.9 ppm
Informational Means3
Au Pb Collection 14.5 ppb
Pt Pb Collection 1.6 ppb
Pd Pb Collection 2.0 ppb
Au P 11.8 ppb
Ag M/ICP 0.08 ppm
Ag P 0.05 ppm
Zn P 21.1 ppm
