Phoenix is a skarn-hosted polymetallic massive sulfide replacement deposit.

Au-Cu-Ag-Pb-Zn skarn mineralization at Phoenix is centered about the Eocene Copper Canyon granodiorite porphyry stock. Paleozoic sedimentary rocks within two miles of the stock have undergone strong thermal metamorphism (hornfels) and metasomatism (skarn). Metal zonation is manifest by a CuMo core close to the stock grading outward into proximal Cu-Au-Ag, Au-Ag and distal Pb-Zn-Ag mineralization.

Phoenix is an open pit operation, located approximately 10 miles south of Battle Mountain, Nevada and can be accessed by paved highway to a Newmont maintained dirt road. The Phoenix surface mine’s available mining fleet consists of three shovels and twenty 240 ton haul trucks.

The Phoenix Mill, constructed in 2005, is designed for the beneficiation of 35,000 tons per day of run-of-mine grade ores from the mining operations. Gold, silver, and copper are recovered by:
(1) coarse gold recovery by gravity separation;
(2) two-stage flotation to produce a copper sulfide concentrate for offsite processing;
(3) further processing of the flotation tailings using a carbon-in-pulp leach (CIP) circuit for additional gold and silver recovery.

Gravity concentrates are diverted to an intensive cyanidation unit (ICU) for gold recovery. Cyanide and lime are added to the CIP leach tanks for precious metal dissolution. The CIP leach tanks discharge to the CIP leach circuit, where dissolved precious metals are adsorbed onto activated carbon particles. Loaded carbon is collected for stripping and the tails slurry passes through a ammonium bisulfite (ABS) cyanide destruction circuit prior to discharge to the tailings storage facility (TSF). Loaded carbon ........