Cornwall Resources Ltd has identified an overall increase in grades at its Redmoor tungsten, tin and copper project following reanalysis of 73 pulp samples from 2017 and 2018 exploration drilling.
MRE
The review applied a reduced analytical cutoff grade utilised to select samples for x-ray fluorescence (XRF) from 0.5% tungsten trioxide to 0.3%.
A total of 36 samples returned greater than a 5% increase in tungsten trioxide grade, including 20 samples with greater than a 10% increase.
“The average increase in grade from the 73 analysed samples is 9.2%,” said the company.
“Alongside results from the ongoing relogging and sampling programme, the results from this reanalysis further validate the potential for upside at Redmoor.
“The majority of these samples lie within or adjacent to the high-grade zones that form the current [2019] MRE [mineral resource estimate].”
CRL will continue relogging, sampling and further reanalysis of historic samples alongside exploration drilling.
The company has so far relogged all of the 2018 drill core, comprising 12 holes for 7,375 metres.
A total of 340 samples, representing 485.57m of new sample length, collected from the 2018 core identified further mineralised intersections.
Re-logging and sampling of the 2017 drill core continues with two drill holes representing 709m so far relogged.
A further 6,313m of drillcore remains from 18 holes for relogging and sampling.
The combined results will contribute to a revised MRE expected within 12 months.
Project manager Dennis Rowland added: “These results will inform future planned resource modelling updates.
“The geological team continues the relogging and sampling of Redmoor’s 2017 drill core, whilst also preparing for newly announced activities, including 5,000 metres of new diamond core drilling planned for H2 2025.”