Canada Silver Cobalt Works Inc. (TSX-V:CCW) said it has successfully commissioned the secondary crushing and screening circuit at its fully owned Temiskaming Testing Labs (TTL) bulk processing facility located in Cobalt, Ontario using low-grade waste rock.
In a statement, Frank J. Basa, Canada Silver Cobalt Work chief executive officer said: “The company is now positioned to process mine development rock to recover native silver and produce feed to a planned pilot plant gravity circuit to produce marketable concentrates for evaluation as part of a PEA (preliminary economic assessment).
"The Company plans to use the secondary crushing and screening circuit during the exploration stage of mine development for metallurgical accounting and grade control by means of a bulk sample to be taken from the proposed planned ramp at the Castle East Robinson Zone. The data and information gathered during the processing of the mine rock may be used to develop a mill process flowsheet."
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Canada Silver Cobalt Work said the mine waste rock in this test run was initially processed with a mobile, tracked screening plant with a 125 tonne per hour capacity. This screening plant produces three different product sizes that include greater than 3” (coarse), between 3” and ½” (medium), and less than ½” (fine).
The screened mine waste rock was then processed by the mobile screening plant and brought to the TTL facility for further crushing and screening. The facility can accept all three sizes produced by the mobile screening plant. Pre-screening the mine waste rock provides for the increased throughput capacity at the TTL secondary crushing and screening circuit.
The TTL facility has a complete crushing and screening bulk processing plant with a 20 tonne per hour capacity. This facility can produce three different product sizes that include greater than 1/4” (coarse), between 1/4” and 20-mesh (medium), and less than 20 mesh (fine).
The final product of the crushing circuit at TTL will allow the production of marketable gravity concentrates or will be used as pilot plant feed for the Re-20x process, which has produced electric vehicle (EV) battery and other related battery end-products.
The company said it continues with the planned 60,000-meter drill program at Castle East with 2 diamond drills running and over 43,000 meters completed to date.
Environmental studies are ongoing for the ramp for the Castle East Robinson Zone and are slated to be completed in the first quarter of 2022, it added.
Canada Silver Cobalt Works recently discovered a major high-grade silver vein system at Castle East located 1.5 kilometres from its 100%-owned, past-producing Castle Mine near Gowganda in the prolific and world-class silver-cobalt mining district of Northern Ontario.
This discovery has the highest silver resource grade in the world, with recent drill intercepts of up to 89,853 grams/tonne silver (2,621 oz/ton Ag). A drill program is underway to expand the size of the deposit with an update to the resource estimate scheduled for the first quarter of 2022.
Canada Silver Cobalt’s flagship silver-cobalt Castle mine and 78 square km Castle Property feature strong exploration upside for silver, cobalt, nickel, gold, and copper. The company is strategically positioned to become a Canadian leader in the silver-cobalt space.
Contact the author at jon.hopkins@proactiveinvestors.com