WhiteRock Lithium Hits Spodumene in All 10 New Holes Across 1,400m Strike
Key Takeaways
- Every one of the 10 new drill holes (BL26-037 through BL26-046) at Spodumene Mountain intersected spodumene-bearing pegmatite, bringing the 2026 program to 17 holes completed and 4,435 m drilled in total.
- BL26-041 returned 84.0 m of pegmatite from 8.0 m depth with a visual spodumene estimate of 15–25%, while BL26-044 delivered three separate intervals — including 51.0 m at 25–35% visual spodumene — in the central zone.
- Six holes returned individual pegmatite intersections exceeding 50 m downhole, and multiple holes intersected stacked spodumene-bearing intervals at depth, pointing to the broader scale of the LCT pegmatite system.
- A fourth diamond drill rig was mobilised on 8 September, bringing the total to four rigs operating simultaneously; first assay results are expected within 3–6 weeks.
- The maiden Mineral Resource Estimate is targeted for H1 2027, with the geological model's growing predictability — spodumene intersected in every hole across a 1,400 m strike length — underpinning that objective.
Drilling at Spodumene Mountain confirms spodumene pegmatite in every new hole
WhiteRock Lithium (ASX: WLC) has released the second wave of 2026 visual drilling results from its Banana Lithium Project in Québec, Canada, with 10 new drill holes (BL26-037 through BL26-046) each returning spodumene-bearing pegmatite. The results bring the 2026 program to 17 holes completed, 4,435 m drilled in total, with 2,532 m of that total reported in this announcement.
The program is actively shifting from testing lateral extent toward defining the geometry and continuity of the mineralised system — a progression that signals the project is maturing toward resource definition. A fourth diamond drill rig was mobilised on 8 September, bringing the total to four rigs operating simultaneously at Spodumene Mountain.
Laboratory assay results are expected within three to six weeks, and the company has a maiden Mineral Resource Estimate (MRE) targeted for H1 2027, subject to the results of ongoing drilling and assay work.
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Standout intercepts point to scale and continuity of the LCT pegmatite system
The headline intercepts from this batch reinforce both the width and the visual mineralisation intensity of the system. BL26-041 intersected 84.0 m of pegmatite from 8.0 m to 91.9 m, with a visually estimated spodumene abundance of 15–25%. BL26-044 delivered three separate pegmatite intervals in the central zone, each with a visually estimated spodumene abundance of 25–35%: 51.0 m from 52.5 m to 103.5 m, 29.9 m from 162.9 m to 192.8 m, and 14.5 m from 197.3 m to 211.8 m.
Six holes in total returned individual pegmatite intersections exceeding 50 m downhole. Several holes also intersected multiple stacked spodumene-bearing pegmatite intervals at depth, a pattern that points to the broader scale of the lithium-caesium-tantalum (LCT) pegmatite system at Spodumene Mountain.
All reported intervals are downhole core lengths, and true widths have not yet been confirmed. These are visual estimates only; laboratory assays are pending and are required to confirm lithium grades and mineralogical composition.
| Hole ID | From (m) | To (m) | Interval (m) | Visual Spodumene Estimate |
|---|---|---|---|---|
| BL26-041 | 8.0 | 91.9 | 84.0 | 15–25% |
| BL26-044 | 52.5 | 103.5 | 51.0 | 25–35% |
| BL26-044 | 162.9 | 192.8 | 29.9 | 25–35% |
| BL26-044 | 197.3 | 211.8 | 14.5 | 25–35% |
| BL26-037 | 28.3 | 118.7 | 90.4 | 0.1–5% |
| BL26-039 | 42.7 | 114.5 | 71.7 | 0.1–10% |
All intervals are downhole core lengths. True widths have not yet been confirmed. Visual estimates are not a substitute for laboratory assay results.
Spatially, four holes stepped southwest and three stepped northeast, both directions confirming strike extension along the corridor. The remaining three holes drilled a 100 m × 100 m grid pattern in the central zone of Spodumene Mountain, progressively closing the gap between the previously reported northeast and southwest step-out areas.
Spodumene mineralisation continues to appear in coarse-grained form, occurring as centimetre- to decimetre-scale crystals within the pegmatite — consistent with the visual results from the seven holes announced on 9 September 2026 and an indicator of growing geological predictability across the system.
Simon Hay, Chairman and Chief Executive Officer, WhiteRock Lithium
“What is particularly exciting is the increasing predictability of the pegmatite system as drilling progresses. The spodumene-bearing pegmatites are being intersected broadly where anticipated by our evolving geological model, providing growing confidence in our interpretation of their geometry and continuity.”
What is spodumene pegmatite, and why does it matter for lithium investors?
Spodumene is a lithium-bearing mineral found in hard-rock pegmatite formations and is a primary source of battery-grade lithium carbonate and lithium hydroxide used in electric vehicle batteries. LCT stands for Lithium-Caesium-Tantalum, a specific class of rare granitic rock that concentrates lithium minerals, making it the geological target of choice for hard-rock lithium explorers worldwide.
At this stage of exploration, visual abundance estimates matter because they give geologists early confidence in mineralisation before laboratory assay results confirm grade. They cannot substitute for assay data, but consistent high-abundance visual hits across multiple holes help build the geological framework needed to advance toward a resource estimate.
For WhiteRock, the significance lies in the consistency: spodumene-bearing pegmatite has been intersected in every drill hole across a strike length of 1,400 m delineated through drilling and outcrop. Québec is widely regarded as a tier-one mining jurisdiction, adding to the project’s investment profile. For context, the company’s inaugural 2024 drill program at Spodumene Mountain returned assay results including 79.3 m at 2.00% Li₂O, 64.7 m at 2.14% Li₂O, and 60.7 m at 1.89% Li₂O — assay benchmarks that illustrate what the current visual results could eventually confirm once laboratory results are received.
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Site visit, next steps and the path to a maiden resource
In mid-September, WhiteRock hosted a site visit to Spodumene Mountain. The full WhiteRock Lithium Board attended alongside a number of industry analysts. Visitors toured the outcrops, inspected the core shed, and observed one of the four drill rigs in operation. Analysts also had the opportunity to view drill core from holes announced on 9 September 2026 and select core from the 2024 drilling campaign. Management bringing investors and analysts on-site at this stage of the program is a meaningful signal of confidence in what the ground is showing.
The next phase of the 2026 summer drill campaign will progressively test the down-dip continuation of the spodumene-bearing pegmatites along the known strike extent. The system remains open along strike and down dip, meaning there is further geometry to define before resource estimation can begin.
Near-term milestones for investors to monitor:
- First assay results expected within 3–6 weeks
- Further visual drilling results to be released in coming months
- Drilling program continuing through October 2026
- Maiden MRE targeted for H1 2027, subject to ongoing drilling and assay outcomes
The geological model’s growing predictability is the foundation on which that resource estimation objective rests. As drilling continues to intersect pegmatite broadly where the model anticipates it, the company’s confidence in interpreting geometry and continuity increases — both prerequisites for a credible MRE.
Simon Hay, Chairman and Chief Executive Officer, WhiteRock Lithium
“We continue to intersect spodumene-bearing pegmatite, including multiple substantial downhole intervals, as our drilling continues to close the gap between the previously reported northeast and southwest areas and supports our objective of targeting a maiden Mineral Resource Estimate in H1 2027, subject to the results of ongoing drilling and assays.”
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