Anglesey Mining plc said the first assay results were encouraging from the initial four holes of infill drilling at its polymetallic project at Parys Mountain on Anglesey, northwest Wales.
INFILL DRILLING
The company, exploring for copper, zinc, lead, silver and gold volcanic massive sulphide deposits at the site, conducted infill drilling of the White Rock and Engine Zone deposits
Anglesey Mining added that the 10-hole programme had provided important data “validating the resource model and improving confidence in the mineral resource estimate and mineralisation boundaries”.
DRILL HOLES
Holes WD-19 and AMC-26 recorded multiple intercepts.
AMC-26 was essentially mineralised over a total width of 163m grading over 2.0% ZnEq (0.75% CuEq).
WD-19 was mineralised over a width of 72m grading over 3.9% ZnEq (1.4% CuEq).
Holes WD-16 and WD-18, drilled at the perimeter of the White Rock zone, encountered only low grade to minor mineralisation.
Assays from another four holes are expected in mid-July.
The final two holes of the programme are being logged for additional data to assist with geotechnical domain modelling, which will be utilised in the underground mine design optimisation.
Once logged, they will be sampled and dispatched for assaying.
TESTWORK
The company will select samples from assays received for the metallurgical testwork which will include dense media separation and XRT ore sorting pre-concentration studies.
The programme will also provide critical information for the tailings storage facility design work.
NORTHERN COPPER ZONE
Chief executive Jo Battershill said the company had expected numerous discrete high-grade zones, with zinc equivalent grades of over 10%, within an overall larger mineralised system.
“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.
“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.”