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Ag 161g/t Au 2.49g/t Epithermal MX

Category: BASE METALS 
Product Code: AMIS 0273

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DOWNLOAD AMIS CERTIFICATE (PDF)
AMIS0273 Ag 161 g/t, Au 2.49 g/t, epithermal, Palmarejo, Mexico

Origin of Material: AMIS0273 is a commissioned CRM made from material supplied by SGS Minerals Services from the Palmajero Mine. Palmajero is wholly owned by Coeur d'Alene Mines Corporation. The mine is located about 420 kilometers by road southwest of the city of Chihuahua in the state of Chihuahua in northern Mexico and on the western edge of the Sierra Madre Occidental in the Témoris mining district.

The Palmarejo area ore bodies are hosted in northwest trending structures that cut through a late Cretaceous-Paleocene volcano-sedimentary sequence comprising ash-rich mudstones, sandstones, basalt and andesite.

Mineral and Chemical Composition: The economic silver-gold mineralization is hosted in epithermal, intermediate-sulfidation, quartz-carbonate tectonic-hydrothermal breccia veins and quartz-stockworks with strong vertical zoning. Precious and base-metal mineral assemblages are dominated by fine-grained pyrite, argentite (acanthite), sphalerite, galena, and electrum. Silver occurs as argentite, electrum and as native silver. Gold is present as native gold and electrum.

Recommended Concentrations and Limit
(at two Standard Deviations)

 
Certified Concentrations

Au Pb Collection  2.49 ± 0.28 g/t
Ag M/ICP             161 ± 9 ppm
Ag P                    158 ± 7.6 ppm
Cu M/ICP             953 ± 56 ppm
Cu P                    947 ± 48 ppm
Pb M/ICP             2639 ± 148 ppm
Pb P                    2615 ± 186 ppm
Zn M/ICP             5001 ± 356 ppm
Zn P                    4792 ± 234 ppm
Specific Gravity    2.76 ± 0.08

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VCS is a Reserve Bank Registered System Operator and a Member of Association of System Operators.