African Mining Network

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AMN - GHANA: High-grade lithium pegmatite samples

Multiple high-grade lithium pegmatite trenching and rock chip sampling results have been received for the Ewoyaa and Abonku prospects, within IronRidge Resources' Mankessim licence area in Ghana. Numerous target areas have been identified within the company's recently acquired high-resolution airborne geophysical survey.

The company has continued to carefully map and sample the Ewoyaa and Abonku pegmatite prospects. Trenching has proved an effective tool for mapping the limits of the pegmatites where thick vegetation and weathering mask the underlying lithology.

Although spodumene bearing pegmatites can be visually confirmed in trench walls, their average grade is not consistently representative of fresh rock grades at depth due to the leaching effects of tropical weathering. Where less weathered, the company has sampled trenches to confirm the presence of lithium and gain an understanding of average grade.

Trenching returned multiple intersections, including 65 metres at 1.1% Li2O, 25 metres @ 1.62%, 18 metres @ 1.67% and 4.5 metres @ 2.2%. Multiple high-grade rock-chip samples returned include 2.95% Li2O, 2.61% and 2.35%.

IronRidge CEO Vincent Masolo said, “The Ghana lithium pegmatite project continues to deliver encouraging results; multiple high-grade and broad trenching intersections further define the coarse, spodumene bearing Ewoyaa and Abonku prospects.

"The recently acquired ultra-high resolution helicopter borne magnetics and radiometrics survey has identified multiple potential lithium pegmatite targets with geophysical responses similar to known mineralisation.

"We have strengthened our in-country management team with the recruitment of a Ghanaian senior geologist in preparation for the initial drilling program.

"The Cape Coast Lithium Project continues to tick the boxes; scale and grade potential, favourable mineralogy, excellent jurisdiction of Ghana with a supportive government looking to diversify its mining sector and an ideally located project within 90km of the Takoradi Port."

The company will continue to better define the surface mineralisation footprints through mapping and pitting over the Ewoyaa and Abonku prospects in preparation for the initial RC-DD drill program designed to test the Ewoyaa prospect.

It has also commenced initial mineralogical characterisation studies on a suite of surface samples utilising optical microscopy, scanning electron microscopy and X-Ray Diffraction to define the major lithium bearing phases.

www.ironridgeresources.com.au