Dalaroo Metals (ASX: DAL) has identified a large, coherent critical minerals system at its 100%-owned Blue Lagoon project in Greenland, following the first modern sampling program conducted at the project since 1979.
Maiden geochemical sampling returned consistent, high-grade zirconium, hafnium, and rare earth element (REE) mineralisation across an approximately 2.7-kilometre strike, confirming the presence of a broad and laterally extensive mineralised system.
The results validate historical Greenland and Denmark Geological Survey data and materially upgrade Blue Lagoon as a potential new district-scale critical minerals project in a favourable regulatory jurisdiction.
The 2025 field program comprised a systematic, project-wide geochemical sampling campaign targeting stream sediments, lagoon margin sediments, and surficial materials.
Extensive Sampling Program
Dalaroo collected a total of 113 samples, all of which returned anomalous zirconium and REE values, indicating pervasive mineralisation across the sampled area.
Sampling targeted both active and relict drainage systems, as well as beach and lagoon environments considered prospective for secondary enrichment and heavy mineral concentration.
Analytical results demonstrate strong, coherent multi-element anomalism in total rare earth oxides, light rare earth elements and heavy rare earth oxides, together with niobium and zirconium.
Exceptional surface sample results included zirconium oxide grades of up to 4.42% and hafnium oxide values up to 98 parts per million from sediment samples, with more than 2% zirconium oxide and greater than 40ppm hafnium oxide encountered across the full strike in both auger holes and sediment samples.
Dalaroo believes the distribution of zirconium and hafnium supports the interpretation of a large-scale mineralised system rather than isolated occurrences.
REE Results Validate Historical Data
REE assays returned high-grade total rare earth oxide values, including results of up to 8,079ppm with magnet rare earth oxides comprising 29% of the total, closely correlating with historical regional geochemical anomalies identified by the Greenland and Denmark Geological Survey in 1979.
This historical dataset had not previously been followed up using modern exploration techniques, and its validation significantly de-risks the project.
Samples were separated into multiple grain-size fractions prior to laboratory analysis to assess metal partitioning and potential natural upgrading characteristics.
Results show enrichment of zirconium, rare earth elements and niobium within finer grain-size fractions, which may support simpler beneficiation pathways— behaviour the company said indicates potential for near-surface, lower-complexity mineralisation styles that could be amenable to gravity separation techniques.
Dalaroo has further mineralogical and metallurgical studies planned to characterise host phases, liberation characteristics, and physical beneficiation potential.
Next Phase Exploration And Forward Work
Follow-up work will include additional auger and sonic drilling to test anomalies at depth and assess vertical grade continuity, with handheld X-ray fluorescence surveys and upslope sampling planned to assist with real-time targeting and identification of potential primary bedrock sources.
Dalaroo will also undertake detailed interpretation integrating geochemistry, mapping and remote sensing to refine priority targets ahead of drilling.
The company is fully funded following its recent capital raising and plans to commence the next phase of exploration in the coming months.
Dalaroo chief executive officer John Morgan said the results represented a highly encouraging start to modern exploration at the Blue Lagoon project.
“The scale and consistency of rare earth, niobium, and zirconium anomalism over a 2.7-kilometre strike, combined with exceptionally low uranium and thorium levels, confirms we are dealing with a robust and regionally extensive critical minerals system,” he added.
