Altona Rare Earths Reports High Success Rate in Monte Muambe Fluorine Results

Altona Rare Earths has announced promising new assay results from its Monte Muambe fluorspar and gallium project in Mozambique, revealing strong fluorine mineralisation across several exploration zones. The company confirmed that 38 percent of tested samples contained more than 5,000 parts per million (ppm) of fluorine, an indicator of significant fluorspar potential. These findings, based on 231 fluorine assays from a total of 281 samples, validate Altona’s innovative approach of using gallium as a tracer element to locate high-grade fluorspar deposits, strengthening the project's geological model.

The latest results have led to the identification of three new exploration targets: Jambire, Jambire Mn, and Kudu. Ground verification has confirmed the presence of fluorspar float and outcrops at each of these sites, suggesting strong surface mineralisation continuity. In response to these discoveries, Altona has expanded its 2025 drilling programme to incorporate the new target zones, advancing its exploration strategy with a broader scope and higher precision.

To date, approximately 600 metres of diamond drilling have been completed at Monte Muambe, with core samples currently being prepared for detailed geochemical and metallurgical analysis in South Africa. This step is designed to accelerate turnaround times and streamline laboratory workflows. In the field, the company’s use of a portable X-ray fluorescence (pXRF) analyser has proven instrumental in providing real-time gallium and rare earth element readings, guiding ongoing drilling decisions and ensuring that sampling focuses on the most prospective zones. Early indications show that around 45 percent of drilled cores contain visible fluorspar, pending final laboratory-grade confirmation. Notably, pXRF data from the Python Target have shown consistent gallium mineralisation accompanied by visible fluorspar, underscoring the reliability of Altona’s exploration methodology.

Altona Rare Earths’ progress at Monte Muambe underscores Mozambique’s emerging role as a key player in Africa’s critical minerals landscape. The integration of gallium tracing techniques with advanced analytical tools positions the project for efficient expansion and higher discovery rates. As the 2025 drilling campaign ramps up, these results could significantly enhance Mozambique’s standing in the regional fluorspar and strategic minerals market, supporting broader industrial development and export diversification across Southern Africa.

Mini-Glossary

• Fluorspar: A mineral form of calcium fluoride (CaF₂) used in steelmaking, aluminium production, and chemical industries.
• ppm (parts per million): A unit of measurement used to express the concentration of an element in a sample.
• Gallium: A rare metal often associated with zinc and bauxite ores, used in semiconductors and as a tracer element in mineral exploration.
• pXRF (portable X-ray fluorescence): A handheld analytical device that provides rapid, non-destructive chemical analysis of rocks and soils.
• Outcrop: The visible exposure of bedrock or mineral deposit at the Earth’s surface.