Critica Limited’s recent drilling at the Juno satellite deposit within the Brothers Rare Earth Project has revealed multiple shallow, high-grade rare earth intersections across a 45 km2 area, reinforcing the project’s growth potential and metallurgical compatibility with the flagship Jupiter deposit.
- Multiple high-grade rare earth intersections at Juno
- Mineralogy consistent with Jupiter deposit
- WA Government co-funded exploration drilling
- Potential for resource growth and development flexibility
- Further metallurgical studies and drilling planned
High-Grade Intersections Highlight Juno’s Strategic Value
Critica Limited (ASX:CRI) has unveiled promising results from its recent drilling campaign at the Juno satellite deposit, part of its broader Brothers Rare Earth Project in Western Australia. The program, comprising 30 air core holes totaling 1,249 metres, returned multiple shallow, high-grade rare earth element (REE) intersections, including standout hits such as 14 metres at 3,053 ppm TREO from 44 metres and 20 metres at 2,155 ppm TREO from 40 metres.
These results confirm the presence of high-grade rare earth mineralisation over an expansive 45 square kilometre area at Juno, positioning it as a significant satellite deposit that could complement the flagship Jupiter Rare Earth Deposit located 50 kilometres to the northwest. The scale and grade of mineralisation suggest Juno could play a pivotal role in supporting future resource growth and enhancing development options across the Brothers Project.
Mineralogical Consistency Supports Processing Integration
Mineralogical analysis using TESCAN’s Integrated Mineral Analyzer (TIMA) indicates that Juno hosts the same REE phosphate minerals found at Jupiter. This consistency bolsters confidence that Juno’s mineralisation will be amenable to the metallurgical flowsheet currently under development for Jupiter, potentially allowing for streamlined processing and feed blending between deposits.
Magnet Rare Earth Oxide (MagREO) proportions at Juno remain broadly in line with Jupiter, generally ranging between 20% and 25% of Total Rare Earth Oxide (TREO). This alignment is critical as magnet rare earths such as neodymium and praseodymium are key to permanent magnet manufacturing, underpinning the strategic importance of the project’s rare earth mix.
Government Support and Future Exploration Plans
The drilling program at Juno was partially funded by the Western Australian Government’s Exploration Incentive Scheme (EIS), which co-funded 50% of approved drilling costs, reflecting public sector confidence in the project’s potential. Critica plans to continue drilling to refine the resource and delineate key zones for more detailed resource definition.
Further technical work is on the horizon, including detailed geological interpretation, additional mineralogical and metallurgical studies, and preliminary metallurgical testwork on selected samples. These efforts aim to confirm processing characteristics and explore feed blending opportunities, which could optimise future development pathways across the Brothers Project.
Satellite Deposits Enhance Project Flexibility
While Jupiter remains Critica’s immediate development priority, Juno’s high-grade intersections and mineralogical compatibility underscore its potential to enhance the long-term value of the Brothers Rare Earth Project. Satellite deposits like Juno offer strategic benefits including resource growth, mine planning flexibility, and the possibility to optimise feed blends, which could reduce processing costs and improve project economics.
Critica’s CEO Jacob Deysel emphasised the strategic importance of these findings, noting that Juno’s mineralisation supports a pipeline of satellite deposits capable of bolstering resource growth and development flexibility. This approach aligns with Critica’s broader strategy of leveraging district-scale exploration upside to underpin future rare earth supply.
Meanwhile, assay results from drilling at the Aurora prospect, another satellite target within the Brothers Project, remain pending and will provide further insight into the project’s regional potential.
Bottom Line?
Juno’s high-grade rare earth intersections and mineralogical alignment with Jupiter position it as a key satellite deposit that could materially enhance Critica’s development options and resource growth prospects.
Questions in the middle?
- How will ongoing metallurgical testwork influence the integration of Juno with Jupiter’s processing flowsheet?
- What resource upgrades might result from the planned infill drilling at Juno and other satellite deposits?
- Could feed blending between satellite deposits materially improve project economics or reduce capital intensity?