Litchfield Minerals reports assays confirming up to 35% manganese with a hydrothermal signature at Lucy Creek 2, Northern Territory, signaling a potentially larger manganese system. Planned geophysical surveys and drilling in 2026 aim to unlock further resource potential.
- Surface manganese grades up to 35.0% Mn confirmed
- Hydrothermal signature indicated by elevated barium and base metals
- Northern Territory Government partially funds upcoming geophysical surveys
- Planned first-pass reverse circulation drilling in 2026 pending Share Purchase Plan funding
- Borate fusion assays commissioned to verify manganese and barium grades
High-Grade Manganese Discovery at Lucy Creek 2
Litchfield Minerals Limited (ASX:LMS) has announced compelling new assay results from its Lucy Creek 2 prospect in the Northern Territory, confirming surface manganese grades reaching as high as 35.0%. These results, derived from Bureau Veritas laboratory analyses of rock chip samples, reveal not only significant manganese concentrations but also elevated levels of barium and base metal pathfinder elements such as lead, zinc, silver, and cobalt. This geochemical signature suggests a hydrothermal origin for the manganese mineralisation, a departure from the simpler supergene enrichment processes typically observed.
Implications of a Hydrothermal Manganese System
The identification of a hydrothermal signature is particularly significant because such systems often host larger and more complex mineral deposits than those formed by surface weathering alone. Hydrothermal manganese deposits can feature multiple stacked mineralised zones, potentially expanding the tonnage beyond the surface exposures currently observed at Lucy Creek 2. Litchfield’s Managing Director highlighted the similarity to the Bootu Creek manganese deposit, which contains over 32 million tonnes at 22.6% manganese, underscoring the prospect’s potential scale.
Next Steps – Geophysics and Drilling
Pending successful funding from the company’s ongoing Share Purchase Plan, Litchfield plans to undertake high-resolution airborne magnetic and radiometric surveys over the Lucy Creek tenement in 2025. These surveys, partially funded by a Northern Territory Government grant, will refine geological models and structural interpretations. Following this, targeted ground electromagnetic surveys will seek to delineate subsurface manganese and associated sulphide mineralisation. The ultimate goal is to define ranked drill targets and commence first-pass reverse circulation drilling in 2026, marking a critical step toward resource definition.
Assay Verification and Commercial Pathways
Given the presence of significant barium (up to 2.95%), which can interfere with standard assay methods, Litchfield will commission borate fusion assays to confirm total manganese and barium grades accurately. Concurrently, the company is preparing product specification sheets and initiating confidential discussions with potential manganese and industrial mineral buyers. This dual approach aims to accelerate commercialisation alongside exploration progress, positioning Lucy Creek 2 as a promising manganese development opportunity.
Historical Context and Regional Exploration
Lucy Creek 2’s manganese mineralisation has been intermittently explored since the early 2000s, including rock chip sampling and rotary air blast drilling by Elkedra Diamonds NL. However, Litchfield’s recent assays and planned geophysical work represent a significant upgrade in understanding and targeting. The company’s broader Northern Territory portfolio, including the Oonagalabi project, benefits from ongoing government support and exploration grants, reinforcing Litchfield’s strategic position in critical mineral exploration.
Bottom Line?
Litchfield’s confirmation of hydrothermal manganese at Lucy Creek 2 sets the stage for a pivotal exploration phase in 2026, with market watchers keenly awaiting drilling results and assay verifications.
Questions in the middle?
- Will borate fusion assays confirm the high manganese and barium grades without partial digest bias?
- How extensive and continuous is the hydrothermal manganese mineralisation at depth and along strike?
- What commercial terms and buyer interest will emerge from the NDA-backed discussions underway?