WhiteRock Lithium Doubles Spodumene Mountain Strike to 1.4km, All 7 Holes Hit
Key Takeaways
- WhiteRock Lithium has confirmed a 115% increase in strike length at Spodumene Mountain — from 650 m to 1,400 m — after the first seven holes of its 2026 diamond drilling campaign all intersected spodumene-bearing LCT pegmatite.
- The northeast extension added 400 m of new confirmed ground beyond the furthest 2024 hole, while the southwest extension added a further 350 m, with both directions remaining open for further drilling.
- The widest intercept recorded was 77.4 m of pegmatite in hole BL26-035, though all intervals are core lengths and true widths remain unconfirmed pending assay results expected within approximately three weeks.
- The 2026 programme is on track toward a maiden Mineral Resource Estimate targeted for H1 2027, supported by a 100 m × 100 m infill grid now underway across the Spodumene Mountain prospect.
- Preliminary metallurgical testing from 2024 produced 6+% Li₂O spodumene concentrates at 63–87% recovery using dense media separation, indicating a viable primary processing pathway ahead of resource definition.
Spodumene Mountain strike length surges 115% to 1.4 km as all seven new drill holes hit pegmatite
WhiteRock Lithium Corp. (ASX: WLC) has announced that the strike length at its Spodumene Mountain prospect has more than doubled, extending from 650 m to 1,400 m following the first seven holes of its 2026 diamond drilling campaign at the Banana Lithium Project in Québec, Canada. Spodumene-bearing lithium-caesium-tantalum (LCT) pegmatite was visually confirmed in every one of the seven new holes, with intersections up to 77.4 m of pegmatite recorded in hole BL26-035.
The system remains open along strike and at depth, with three diamond drill rigs continuing to work systematically across the mineralised corridor. To date, 7 of the 50–60 planned holes have been completed, representing 1,903 m of total drilling.
These are visual and geological results only. Assay grades are expected within approximately three weeks. As the company notes, visual estimates of mineral abundance should not be considered a proxy or substitute for laboratory analyses where grades are the factor of principal economic interest.
Simon Hay, Chairman and Chief Executive Officer
“These results are a significant milestone for WhiteRock from the first seven drill holes of the 2026 campaign. More than doubling the strike length at Spodumene Mountain to 1.4 km, with spodumene pegmatite confirmed in every new drill hole, demonstrates the scale and continuity of the system. The fact that the LCT pegmatite remains open along strike and down dip suggests that the full potential of the Banana Lithium Project has yet to be revealed.
As well as seeking to understand the limits of the strike length, the 2026 drill program also has an objective of providing sufficient data to prepare an initial mineral resource estimate for part of the Project. Both objectives are on track and with the drilling productivity to date we are confident sufficient data will be generated. We look forward to receiving assays for these results and continuing to expand our understanding of the Project.”
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What is an LCT pegmatite and why does strike length matter?
An LCT pegmatite is a coarse-grained igneous rock enriched in lithium, caesium, and tantalum. These rocks can concentrate lithium minerals into economically significant deposits, making them a primary exploration target for battery metals. At Spodumene Mountain, the dominant lithium-bearing mineral is spodumene, a pyroxene mineral that is a key source of lithium carbonate and lithium hydroxide used in battery manufacturing.
Strike length refers to the horizontal distance along which a mineralised body has been confirmed through drilling or outcrop mapping. In simple terms, the longer the confirmed strike, the larger the potential resource footprint. A 115% increase in strike length, from 650 m to 1,400 m, means significantly more of the pegmatite system is now understood and documented, feeding directly into the data requirements for a maiden Mineral Resource Estimate (MRE) targeted for H1 2027.
Northeast and southwest extensions confirmed across 750 m of new ground
Northeast extension: 400 m of new ground confirmed
Four holes (BL26-031, BL26-033, BL26-034, and BL26-036) extended the LCT pegmatite system 400 m northeast beyond ZS-24-007, the furthest northeast hole drilled in 2024. Spodumene mineralisation was visually confirmed in each hole, with coarse-grained crystals ranging from centimetre to decimetre scale visually abundant across the northeast intercepts.
Initial geological interpretation suggests the pegmatite body may be pinching near surface and swelling locally at depth, pointing to further potential down-dip.
Southwest extension: 350 m of new ground confirmed
Three holes (BL26-030, BL26-032, and BL26-035) extended the drilled footprint 350 m southwest beyond ZS-24-029, the previously furthest southwest hole from the 2024 campaign. The thick southwest intervals are characterised by apparent internal fractionation into spodumene-bearing and feldspar-dominant pegmatite domains, with coarse-grained spodumene visually abundant within the spodumene-bearing portions. Observed spodumene grain sizes range from rare millimetre-scale to decimetre-scale, with the majority in the centimetre to decimetre range.
The system remains open to the southwest and down dip. Remaining 2026 drilling is expected to focus on testing the down-dip continuation of the system along the known strike extent.
Key intercepts
- All intervals are core length; true widths are not yet confirmed
- Visual spodumene abundance estimates are not a substitute for laboratory assay results
- Assay results are expected within approximately three weeks
| Hole ID | From (m) | To (m) | Interval (m) | Spodumene Abundance Estimate |
|---|---|---|---|---|
| BL26-030 | 108.5 | 177.0 | 68.5 | 0.1–25% |
| BL26-031 | 141.6 | 181.7 | 40.0 | 15–25% |
| BL26-032 | 141.0 | 175.4 | 34.4 | 10–25% |
| BL26-033 | 171.2 | 212.1 | 40.9 | 15–25% |
| BL26-034 | 46.7 | 58.1 | 11.4 | 30–40% |
| BL26-035 | 50.1 | 127.5 | 77.4 | 0.1–25% |
| BL26-036 | 114.5 | 125.8 | 11.3 | 10–20% |
Source: WhiteRock Lithium ASX Announcement, 9 September 2026. All intervals are core length; true widths not yet confirmed. Visual estimates only — assay results pending.
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Path to maiden resource: three rigs drilling, assays due this month
The 2026 drilling programme was established with three stated objectives:
- Test the strike extensions of Spodumene Mountain in both directions — achieved with these first seven holes
- Drill a 100 m × 100 m grid across the Spodumene Mountain prospect — ongoing, with the focus now shifting to systematic infill drilling
- Compile a maiden Mineral Resource Estimate in H1 2027 — on track, per the CEO’s commentary
The geological system being extended has already demonstrated meaningful grades. Significant results from the company’s inaugural 2024 drill programme at Spodumene Mountain included 79.3 m at 2.00% Li₂O from surface, 64.7 m at 2.14% Li₂O, and 60.7 m at 1.89% Li₂O. Those 2024 results establish the geological credibility of what the 2026 programme is now expanding.
Preliminary metallurgical testing completed in 2024 also produced 6+% Li₂O spodumene concentrates at 63–87% recovery using heavy liquid separation, indicating DMS as a viable primary processing approach.
The next material event for investors to watch is the receipt of assay results from these seven holes, expected within approximately three weeks. With only 7 of the planned 50–60 holes completed, substantial drilling activity remains ahead for the 2026 programme.
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