Description
DOWNLOAD AMIS CERTIFICATE (PDF)
Origin of Material: AMIS0272 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.
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 Limits
(at two Standard Deviations)
Certified Concentrations
Au Pb Collection 1.22 ± 0.10 g/t
Ag M/ICP 110 ± 7 g/t
Ag P 111 ± 6 g/t
Cu M/ICP 418 ± 17 ppm
Cu P 419 ± 24 ppm
Pb M/ICP 839 ± 69 ppm
Pb P 842 ± 69 ppm
Zn M/ICP 1420 ± 120 ppm
Zn P 1385 ± 142 ppm
Specific Gravity 2.76 ± 0.06
