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Equinox Resources (ASX:EQN) has confirmed the presence of refinery-grade bauxite and large amounts of gallium – both strategic metals – at its Campo Grande project in Brazil, based on results from a key in-country geochemical laboratory.
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The assay results – released by SGS Geosol – showed ore from Campo Grande contains refinery-grade extractable alumina and low reactive silica, consolidating earlier results which included gallium intercepts up to 106.5 grams per tonne gallium oxide (Ga₂O₃) and bauxite intervals up to 42.1% of aluminium oxide (Al₂O₃).
This confirms that the project’s bauxite meets the standard for processing in a refinery via the low-temperature Bayer process, which is the industry standard for alumina production from gibbsite-rich ores.
SGS Geosol assessed this by placing samples through alkaline digestion under heat and pressure to mimic Bayer circuit parameters.
Equinox managing director Zac Komur said the results highlighted the value of Campo Grande – which is located in Brazil’s Bahia region – given the presence of these critical minerals.
“Recent results confirm the presence of refinery-grade bauxite, elevated gallium, and rare earth elements within the Campo Grande Project area,” he said.
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Of key importance, Mr Komur added, is the timing: “This project is along a key critical minerals trend in Brazil, at a time of increasing market focus on secure and independent sources of alumina and strategic metals.”
EQN shares rose on the news to trade at around 8.6 cents each.
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