Lower-grade shoulders are being left on the walls and only the higher-grade portions are being extracted.
The Vancouver-based miner now owns 100% of the project with no underlying royalties.
The 9,140-hectare project is located in the Red Lake District.
The Columba silver project has not been systematically explored since the Mexican Revolution.
The company said the expansion of the New Princeton Gold discovery area made sense following a recent gold discovery from the bedrock trenching.
White Metal is expanding its gold property located in the Botwood Basin.
The Melbourne-based miner is interested in the Highland gold/silver project, located within the Walker Lane Gold trend.
Silver Range sampled the back of a collapsed stope in the Gold Chief property and the results returned 14 m at 1.93g/t gold including 4 m at 3.86 g/t gold.
Results are from the Bongará Zinc Mine located in north-central Peru.
The Vancouver-based miner acquired Altos De Punitaqui, a producing copper-gold operating company.
The miner said the strike is a breach of the Collective Labour Agreement.
AJN Resources says Salt Wells presents all the characteristics of the best lithium brines in the world.
The Gold Bar and Gold Canyon projects are both former mines in the prolific Gold Bar District.
The company is investing more than $120 million, which is a first in the history of the South American country.
The 2018 collection of the finest pink, red and violet diamonds continued its trajectory of double-digit price growth.
From now on, Aston Bay will own exclusive rights to the copper-lead-zinc-gold-silver Blue Ridge Project.
Barachois is a sedimentary hosted vanadium-selenium-silver-lead-zinc prospect that covers 1,801 hectares.
The company says its technology is capable of extracting lithium and other elements very quickly from petrolithium and other brine sources, reducing the physical footprint of large, multi-phase, lake-sized, lined evaporation ponds.
The diamond's age is estimated at 350 million years, it weighs 51.49 carats and measures 23 by 22 by 15 mm.
The property was originally explored as an iron-ore mine prospect but it ended up showing cobalt potential with positive assay results.
Diamcor Mining announced that following its previous release on the initial tender of 2,606.50 carats of rough diamonds, it delivered an additional 5,335.83 carats before the end of October.
The Chibougamau project is comprised of four separate claim blocks near Lac Chibougamau in the northern region of the French-speaking province.
They are focusing on the Planalto project, located near Vale's Sossego copper mine and Oz Minerals Antas copper mine.
The Zonia Copper Oxide Project is located in central Arizona and has been held under private ownership for almost 100 years.
The Maracás Menchen mine has a take-or-pay off-take agreement with Glencore for 100% of its vanadium material.