Anglesey Mining PLC (AIM:AYM) reported positive results from the initial four holes of an infill drilling programme at its Parys Mountain polymetallic project in Wales.
“As expected, there are numerous discrete high-grade zones, with zinc equivalent grades of over 10%, within an overall larger mineralised system,” said chief executive Jo Battershill.
Two of the holes recorded multiple intercepts. Hole AMC-26 was essentially mineralised over a total width of 163 metres (m) and graded over 2.0% zinc equivalent (0.75% copper equivalent).
WD-19 was mineralised over a width of 72m, grading over 3.9% zinc equivalent (1.4% copper equivalent).
Two other holes - WD-16 and WD-18 - drilled at the perimeter of the White Rock zone, encountered only low grade to minor mineralization, it said.
Results from another four holes are expected mid-July, while the final two holes of the 10-hole infill programme are being logged for additional data to help with eventual underground mine design optimisation.
With assays received, samples will now be selected for the metallurgical testwork programme. The testwork will include both Dense Media Separation and XRT ore sorting pre-concentration studies, which will also provide critical information for the Tailings Storage Facility design work.
“The pre-concentration studies will provide important information that will help to maximise the extraction of this deposit, while also minimising the overall volume of both mill feed and tailings,” said Battershill.
“On the Northern Copper Zone, the team is currently planning the next round of infill drilling, which we hope to start in the September quarter. This will be the first infill programme into this deposit for almost 20 years and will provide important data for metallurgical testwork and the optimal mine design.”