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Silver Mines: Enhanced Recoveries At Webbs Pave Way For Silver Doré Production Testing

Silver Mines (ASX: SVL) is now ready to begin testing the feasibility of producing silver doré from bulk suphide concentrate at its Webbs Project after demonstrating further high recoveries, marking an improvement on earlier results.

Further delivering on the already high recoveries, bulk sulphide flotation testwork has improved the recoveries to 96% at 212 micron grind achieved to bulk sulphide concentrate, at 12% mass pull.

Importantly, these results are consistent with, and slightly improve on previous sighter testwork which reported silver recoveries of 92% at 212 micron grind and 94% at 75 micron grind.

Additionally, silver grades up to 2,128 grams per tonne (g/t) silver were achieved in bulk concentrate from a head grade of 265/t silver.

For other metals, recoveries of copper and zinc were 90% and 88% respectively, while lead recoveries were 72%.

Further upside, is that Silver Mines has identified the potential to improve flotation performance with cleaner testwork and flotation optimisation.

Bulk sulphide concentrate will now undergo ultrafine grinding and Albion/carbon-in-leach processing testwork to investigate the potential to produce silver doré and base metal concentrates.

Charles Straw, chief executive officer, commented on the improved recoveries: "These results follow on from those released on May 15 and provide further confirmation that the high grade Webbs silver resource responds exceptionally well to flotation with very high silver and base metal recoveries reporting to a bulk sulphide concentrate, at a relatively coarse grind size with low mass pull.

"We now have sufficient quantities of concentrate to proceed to the next phase of testwork, namely testing the feasibility of producing silver doré from the concentrate. Additional optimisation testwork to improve concentrate grades and quality is also planned."

Silver Mines delivers 'top class' discoveries from Webbs

Webbs, located in north-eastern New South Wales, is one of Australia's highest grade undeveloped silver projects.

Highlighting the high grade nature of the project, the Resource currently stands at 1.49 million tonnes at 245g/t silver for 11.746 million ounces, or around eight ounces of silver per tonne - but it's the confidence categories which are the key.

The Measured and Indicated component is 969,000 tonnes at 269g/t silver for 8.4 million ounces - or 71% of the total resource.

Some impressive drilling results already announced this year include:

- 7.80 metres at 464g/t silver, 0.78% copper, 2.17% lead and 1.69% zinc from 29.8 metres, including 2.60 metres at 1125g/t silver, 1.81% copper, 3.79% lead and 2.94% zinc.

- 5.15 metres at 398g/t silver, 0.66% copper, 3.19% lead and 2.1% zinc from 34.1 metres, including 1.00 metre at 708g/t silver, 1.26% copper, 2.92% lead and 1.45% zinc.

- 6.45 metres at 200g/t silver, 0.33% copper, 1.57% lead and 1.23% zinc from 49.25 metres, including 2.00 metres at 365g/t silver, 0.62% copper, 2.40% lead and 2.47% zinc.

A new drilling program, designed to increase the Resource, is currently being planned for Webbs and is expected to begin in four to six weeks.

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