Atlantic Lithium Ltd (AIM:ALL, OTCQX:ALLIF, ASX:A11) revealed an updated mineral resource estimate for its Ewoyaa lithium project in Ghana to take account of increased feldspar content, which it intends to supply to the local ceramics market.
The updated MRW showed 36.8 million tonnes (Mt) at 41.9% feldspar at Ewoyaa.
Chief executive Keith Muller said: "The increased resource gives us further confidence in Ewoyaa's potential as a major source of feldspar in Ghana, which will be produced as a by-product of spodumene concentrate production from the project.
"Atlantic Lithium intends to supply the feldspar to the local Ghanaian ceramics market to support the growth of businesses associated with the industry and the wider local economy.
"As such, the Feldspar MRE enables the company to incorporate life of mine production of feldspar in future revisions of the Ewoyaa feasibility studies, as well as in its considerations to bring the feldspar to market."
The JORC-compliant MRE estimate is based on the same geological model that resulted in the 36.8Mt at 1.24% lithium oxide (Li2O) MRE that the company announced last July.
The feldspar estimate included a total of 3.7Mt at 40.2% feldspar in the Measured category, 26.1Mt at 42.1% feldspar in the Indicated category and 7.0Mt at 42.4% feldspar in the Inferred category.
Atlantic said the feldspar MRE represents all of the spodumene pegmatites drilled at Ewoyaa and takes consideration of the full life-of-mine production as per the mine plan detailed in the definitive feasibility study announced in June 2023, rather than the five years considered in the maiden feldspar MRE published in December 2023.
Quartz and muscovite are also noted in MRE as additional potential by-products from spodumene concentrate production at Ewoyaa.