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Mn 43.97% Wessells Kalahari ZA

Category: FERROUS 
Product Code: AMIS 0402

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DOWNLOAD AMIS CERTIFICATE (PDF)
AMIS0402 Mn 43.97% oxide Kalahari South Africa

Origin of Material: The raw material for AMIS0402 was supplied by BHP Billiton from the Wessels Manganese Mine situated in the Kalahari manganese field, 14 km north west of Hotazel, in the Northern Cape Province, South Africa.  The ore is a diagenetic to very low grade metamorphic, carbonate-bearing braunitic manganolutite, preserved in the Griqualand West Basin of the 2500 Ma old Neoarchean-Paleoproterozoic Transvaal Supergroup.

Mineral and Chemical Composition: The main manganese mineral is braunite. It is often intergrown with kutnahorite and other minerals (hematite, hausmannite, Mg-calcite, calcite, jacobsite, serpentine and garnet), which are present in variable amounts.

Recommended Concentrations and Limits
(at two Standard Deviations)

Certified Concentrations

Mn Fusion  43.01 ± 4.00 %
Mn XRF   43.97 ± 0.36 %
Fe M/ICP  14.53 ± 1.22 %
Fe Fusion  15.38 ± 1.18 %
Ca M/ICP  3.94 ± 0.34 %
Ca Fusion  3.88 ± 0.34 %
Specific Gravity 4.62 ± 0.18

 

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