Perpetual Resources has confirmed a significant lithium-caesium-tantalum pegmatite discovery at its Renaldinho Project in Brazil, with rock samples grading up to 2.56% lithium oxide. This early-stage find positions Renaldinho as a key focus for upcoming drilling campaigns.
- New LCT pegmatite discovery at Renaldinho with Li2O grades exceeding 2.5%
- Strong pathfinder element anomalies (Li, Cs, Ta) indicating advanced pegmatite evolution
- Multiple pegmatite swarms mapped over 1.6 km of artisanal workings
- Geological signature aligns with Tier-1 lithium deposits in Brazil’s Lithium Valley
- Maiden drilling planned for 2026 following further sampling and mapping
Discovery Highlights
Perpetual Resources Ltd (ASX, PEC) has announced a promising new lithium discovery at its Renaldinho Project in Brazil, confirming the presence of lithium-caesium-tantalum (LCT) pegmatites with lithium oxide (Li2O) grades reaching up to 2.56%. The results stem from reconnaissance rock chip sampling across multiple artisanal underground workings, revealing a highly fractionated and lithium-fertile system.
The discovery is underscored by strong pathfinder element anomalies, including elevated caesium and tantalum levels, which are key indicators of advanced pegmatite evolution and potential spodumene mineralisation. These findings suggest Renaldinho hosts a fertile LCT pegmatite system analogous to some of Brazil’s most productive lithium deposits.
Geological Context and Scale
Field mapping has identified multiple pegmatite swarms extending over a strike length of approximately 1.6 kilometres, with artisanal workings providing immediate access for exploration. The pegmatites exhibit a consistent N70°E orientation and subvertical geometry, typical of lithium-bearing systems in the region.
Importantly, the regional geological signature at Renaldinho aligns closely with Tier-1 lithium projects such as Sigma Lithium’s Xuxa Project and CBL’s Cachoeira Mine, both located within Brazil’s emerging Lithium Valley. This alignment bolsters the prospectivity of Perpetual’s holdings and supports the company’s strategic focus on critical minerals essential for new energy technologies.
Next Steps and Broader Exploration
Perpetual Resources is advancing its exploration program with detailed structural mapping, channel sampling, and soil grid surveys planned to refine drill targets. The company aims to commence maiden diamond drilling at Renaldinho in 2026, targeting the high-grade zones identified through geochemical and geological data integration.
Alongside Renaldinho, Perpetual is progressing soil sampling campaigns at its Morro Grande and Mauricio projects, with assay results expected early next year. These efforts collectively enhance Perpetual’s lithium discovery pipeline in Brazil, positioning the company to capitalize on the growing demand for lithium in global energy markets.
Executive Commentary
Executive Chairman Julian Babarczy highlighted the significance of the results, stating, "These results represent our strongest early-stage confirmation yet that Renaldinho hosts a highly evolved LCT pegmatite system. The presence of >2.5% Li₂O accompanied by exceptionally strong pathfinder anomalism indicates that we are sampling material from the upper weathered zones of a fertile, potential spodumene-bearing system."
He further noted the strategic advantage of existing artisanal workings, which align with expected mineralised trends and provide immediate exploration access ahead of drilling.
Bottom Line?
Renaldinho’s early-stage lithium discovery sets the stage for a pivotal exploration year in 2026, with drilling poised to unlock its true potential.
Questions in the middle?
- What will maiden drilling reveal about the size and continuity of the lithium mineralisation?
- How do Renaldinho’s assay results compare in detail to nearby Tier-1 lithium deposits?
- What impact will upcoming assay results from Morro Grande and Mauricio have on Perpetual’s exploration strategy?