Cornwall Resources Ltd has identified additional tungsten and copper mineralisation from its relogging programme of diamond drill core at its Redmoor project.
DERISK
The findings follow August 2024 assays of “potentially economic” tungsten-tin-copper mineralisation within the deposit and outside of the mineral resource estimate.
The company said that the new mineralisation could contribute to a revised MRE.
Cornwall Resources’ latest figures are based on laboratory results from 194 new diamond drill core samples taken from seven diamond core drillholes from the 2018 drilling campaign.
Returns include tungsten trioxide grades of 0.33% over 1m from 393.5m and 0.30% over 1m from 440.95m.
Copper grades include 0.34% copper over 4m from 384m and 0.42% over 1.25m from 326.9m.
“Elevated” tin concentrations were recorded as up to 0.36% tin over 1.3m from 270.7m.
Cornwall Resources plans to re-log 2017 drill core, with both programmes expected to de-risk future drilling “significantly” at Redmoor.
Meanwhile exploration continues in the Duchy of Cornwall licensed Tamar Valley and Redmoor areas, with baseline soil sampling to identify new exploration targets.
The company has so far collected 279 samples for analysis.
Project manager Dennis Rowland added that the reassessment of Cornwall Resources’ existing drill core had used enhanced methodologies.
“The geological team has commenced the relogging and sampling of Redmoor’s 2017 drill core, with an additional 7,022 metres of core remaining for review.”