Articles by Richard Quarisa

Aztec can acquire a 75% interest in Tombstone over the next three years. Credit: Aztec Minerals.

Aztec chases silver-zinc deposits at Tombstone

Aztec Minerals (TSXV: AZT; US-OTC: AZZTF) has started surface exploration at its newly optioned Tombstone silver-zinc district, 104 km southeast of Tucson, Arizona. The company is chasing multiple mineralization types,…




A rendering of the planned Fenix project at McEwen Mining’s El Gallo gold-silver mine. Credit: McEwen Mining.

McEwen extends El Gallo 12 years with new PEA

McEwen Mining (TSX: MUX; NYSE: MUX) has tabled a new preliminary economic assessment (PEA) that extends the life of its El Gallo gold-silver complex in Mexico by 12 years with…


Blue Sky prepping for PEA at Ivana in Argentina

A few months after tabling a maiden resource for its Ivana urnaium deposit on its Amarillo Grande uranium project in Argentina’s Rio Negro province, Blue Sky Uranium (TSXV: BSK; US-OTC:…




Coeur Mining's Palmarejo silver-gold operation, located in Chihuahua, Mexico. Credit: Coeur Mining.

Top 10 US-based, mid-tier precious metals

The Northern Miner presents its top-10 list of the largest U.S.-headquartered mid-tier to junior precious metal companies, by market capitalization: 1. COEUR MINING Market cap: US$1.5 billion Chicago-based Coeur Mining…


Workers on a drilling barge at Fission Uranium’s Patterson Lake South uranium project in northern Saskatchewan. photo by Richard Quarisa.

Site visit: Fission pushes PLS forward in Athabasca

PATTERSON LAKE, SASK. — Fission Uranium (TSX: FCU; US-OTC: FCUUF) is in the midst of a $6.4-million, mid-year work program at its near-surface Patterson Lake South (PLS) uranium project in northwestern Saskatchewan….





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