Variscan Mines Ltd
Variscan Mines Prepares to Drill Its Second Spanish Zinc Project as Exploration Pipeline Expands
Variscan Mines Limited (ASX: VAR) is preparing to start a 5-hole, 1,430-metre maiden diamond drilling programme at its Guajaraz zinc-polymetallic project in central Spain, according to its 10 July 2026 ASX announcement. The programme is designed to test zinc-rich targets with lead, silver and copper potential, while also meeting the operational requirements needed to support a 3-year tenement extension filing in September 2026.
The update matters because it adds a second active exploration front alongside Variscan's flagship Novales-UdÃas zinc project in Cantabria. For investors, that broadens the company's near-term news flow and reduces reliance on a single project during the second half of 2026.
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A Second Spanish Project Moves Into Drilling
According to the announcement, Guajaraz is a 1,530-hectare brownfield exploration permit in the Central Zone of the Iberian Massif, about 60 km south-west of Madrid and 20 km from Toledo in Castilla La Mancha. Brownfield means the area has already seen mining activity, which can provide useful geological information and lower early-stage uncertainty compared with a completely new exploration area.
The project is centred on the former La Unión (La Económica) underground mine, which operated periodically from 1945 to the mid-1980s. Historical mining reportedly developed a network of shafts and galleries to 280 metres depth across 10 levels.
Variscan stated that historical records indicate production of high-grade silver-rich lead and zinc sulphides, including galena and sphalerite, which are the main ore minerals for lead and zinc respectively. Concentrates are reported to have averaged around 70% lead and 51% zinc, with silver credits of 1,500 ppm to 3,000 ppm in concentrate.
The company also highlighted a historic non-JORC compliant Zn-Pb-Ag resource estimate compiled by Spanish state-owned company ENADMISA in 1990. Because it is non-JORC compliant, investors should view it as historical context rather than a current resource estimate reported under Australian standards.
Beyond zinc, the project carries broader polymetallic potential. The ASX update noted historical grab samples grading up to 0.9% copper and 278 ppm silver, indicating possible upside across multiple metals if drilling confirms mineralisation continuity at depth.
What Does the Chairman Think?
"Following our recent capital raising, the Variscan team is moving forward with renewed vigour across our entire Spanish portfolio.
While surface and underground drilling campaigns continue to expand our mineralised footprint at Novales, this maiden drilling programme at Guajaraz represents an expansion of our regional exploration footprint. By deploying a targeted, diamond drilling campaign, we are testing the broader potential of this heavily mineralised, yet underexplored, polymetallic system and simultaneously securing our tenement standing heading into the final stretch of the year."
— Tony Wehby, Chairman, Variscan Mines Limited
What the Guajaraz Drilling Programme Is Designed to Test
In the announcement, Variscan said the maiden programme follows an extensive targeting phase involving:
- Geological mapping
- Geochemical sampling
- An 8.5 line-km Deep Ground Penetrating Radar (DGPR) survey
These datasets were used to define several high-priority targets. Furthermore, the company has engaged Spanish drilling contractor Geoplanning to carry out the campaign, with drill sites finalised after crop harvests to allow immediate access.
Diamond drilling has been selected because it produces a continuous core sample of rock. That gives geologists a clearer view of rock types, structures and mineralisation than methods that return only broken rock chips.
A key point in the drilling design is safety and target selection. Variscan said it is avoiding the principal sub-vertical La Unión vein structure because of the risk of intersecting unmapped and likely flooded historical workings. Instead, the programme is aimed at the broader mineral system, particularly deeper zinc targets and nearby parallel structures that remain undrilled.
The five planned holes are summarised below.
| Hole | Target | Main Objective | Approx. Depth |
|---|---|---|---|
| G-01 | Enadmisa Conceptual Target | Test historical geological model north of the main mine and eastern extension of Mina Manolita trend | TBA |
| G-02 | Northern Displacement Target | Test possible northward continuation of the main mineralised structure and DGPR anomaly | ~260 m |
| G-03 | Cerro Hueco Structure | Test possible sub-parallel mineralised structure and coincident DGPR anomaly | TBA |
| G-04 | Mina Manolita Structure | Test second sub-parallel structure near Mina Manolita and a prominent geophysical anomaly | TBA |
| G-05 | Deep carbonate-replacement Zn lenses | Test deeper carbonate strata for historically described replacement-style zinc mineralisation | TBA |
Total programme: 5 holes for 1,430 metres
Several of these targets are aimed at sub-parallel structures, meaning mineralised corridors that run alongside the historically mined trend. If those structures are mineralised, they could expand the known footprint beyond the old mine area rather than simply extending the main historical zone.
Why Carbonate-Hosted Replacement Zinc Matters
One of the more important technical aspects of the Guajaraz zinc-polymetallic project is the focus on carbonate-hosted replacement-type zinc mineralisation, particularly in Hole G-05.
In simple terms, this deposit style forms when hot, metal-bearing fluids move through the ground and react with carbonate rocks such as limestone or dolomite. Instead of only filling narrow cracks, the fluids can replace parts of the host rock with sulphide minerals like sphalerite and galena, creating thicker zones of mineralisation.
For investors, that matters because replacement-style deposits can sometimes form high-grade and laterally continuous bodies that are attractive drill targets. However, the report does not claim Guajaraz hosts the same scale as other Spanish deposits. Variscan has clearly designed the programme to test whether this mineralisation style is present at depth.
The announcement also placed Guajaraz within a broader Spanish zinc context. Variscan's Novales project in Cantabria is located near the former ReocÃn Mine, which the company describes as the largest known strata-bound carbonate-hosted Zn-Pb deposit in Spain and one of the world's richest Mississippi Valley-Type (MVT) deposits.
That regional geological comparison helps explain why Variscan is paying close attention to carbonate replacement targets. It does not confirm the same outcome at Guajaraz, but it gives context for the exploration model being tested.
Key Technical Terms Explained
To make the programme easier to follow, several terms in the report are worth clarifying:
- Diamond drilling: A method that cuts a cylindrical rock core, allowing detailed analysis of geology and mineralisation.
- DGPR: A geophysical survey that uses radar to detect subsurface changes, which may point to structures, voids or mineralised zones.
- Sphalerite: The main zinc ore mineral.
- Galena: The main lead ore mineral, often associated with silver.
- Grab sample: A selective rock sample taken from one point. It can show mineral presence but is not representative of the whole deposit.
- JORC Code: The Australian reporting standard for exploration results, mineral resources and ore reserves.
Tenement Extension Adds Another Layer of Importance
The ASX update makes clear that the drilling programme is not only about exploration. Variscan said the campaign satisfies the operational requirements necessary to file for a 3-year extension of the Guajaraz tenement in September 2026.
That is an important practical outcome. In exploration, maintaining title over prospective ground can be as important as generating drill data, especially where historical mining and multiple known occurrences already support the geological case.
From a capital allocation perspective, this means the Guajaraz programme has a dual role:
- Testing new mineral targets
- Supporting tenure continuity
That combination may matter to investors assessing how efficiently recent funding is being deployed. Variscan referenced its May 2026 capital raising as part of the broader push to advance its Spanish portfolio.
Portfolio Activity Is Now Running Across Two Projects
According to the announcement, Guajaraz is being advanced in parallel with ongoing work at Novales-UdÃas, Variscan's main zinc project in Cantabria. The company outlined several current and upcoming activities at Novales, including:
- Ongoing underground drilling
- Pending channel sample assays from the Emilia Mine
- Infrastructure and power upgrades to support deeper underground development
- Advancement of the Mine Restart Study parameters, including hydrogeological and environmental impact studies
Hydrogeological studies examine groundwater conditions, which can be important for mine design, dewatering requirements and environmental planning. For a brownfield underground project, this work can be a meaningful step in improving development planning.
Having two active projects can improve the cadence of operational updates. It also gives investors exposure to both early-stage target testing at Guajaraz and mine restart-related work at Novales-UdÃas.
Upcoming Catalysts Investors May Watch
The report sets out several events that could shape Variscan's news flow through the rest of 2026.
| Milestone | Project | Timing |
|---|---|---|
| Commencement of maiden diamond drilling | Guajaraz | July 2026, imminent |
| Drilling results from 5-hole, 1,430 m programme | Guajaraz | H2 2026 |
| 3-year tenement extension filing | Guajaraz | September 2026 |
| Channel sample assay results from Emilia Mine | Novales-UdÃas | Pending |
| Infrastructure and power upgrades | Novales-UdÃas | Ongoing |
| Mine Restart Study advancement | Novales-UdÃas | Ongoing |
The near-term focus is likely to be on whether Guajaraz drilling confirms mineralisation along the interpreted parallel structures and deeper replacement-style targets. In addition, updates from Novales-UdÃas could help frame Variscan's progress on project development and underground expansion.
Why the Investment Case Is Drawing Attention
The announcement reinforces several elements of Variscan's current investment profile. First, the company now has two active exploration fronts in Spain, which can broaden exposure to discovery and development news while reducing reliance on a single stream of results.
Second, Guajaraz is a brownfield project with a documented production history, seven known mineral occurrences and a historic non-JORC resource estimate. That does not remove exploration risk, but it does mean the maiden drilling campaign is being built on an established geological framework rather than a greenfield concept.
Third, the planned holes are targeting areas that the company says remain untested at depth or along sub-parallel trends. If drilling confirms mineralisation in those zones, it could support a larger mineralised system than the historical workings alone suggest.
Fourth, the project offers polymetallic exposure. Zinc is the primary target, but lead, silver and copper are also part of the geological story, based on historical production records and grab sample results cited in the announcement.
Finally, the campaign appears linked to a broader period of activity funded after the company's recent raising. Investors often watch whether capital is being converted into field programmes, technical studies and regular operational milestones. According to the report, Variscan is now doing that across both Guajaraz and Novales-UdÃas.
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Variscan's Spanish Base-Metals Focus Is Becoming Broader
Variscan has been known primarily for the Novales-UdÃas zinc project, which sits in Cantabria near the former ReocÃn Mine and within roughly 80 km of the San Juan de Nieva zinc smelter operated by Asturiana de Zinc, a Glencore-owned business, according to the company's project summary.
The Guajaraz drilling programme adds a second active project in a different Spanish base-metals district. That does not yet change the company's development stage, but it does expand the number of pathways through which exploration success or project advancement could emerge.
For investors following ASX zinc explorers, the immediate question is straightforward: can Guajaraz's historical mineralisation and geophysical targets translate into meaningful drill intersections? The answer will begin to emerge once assays from the maiden programme are reported in H2 2026.
At this stage, the ASX announcement presents Guajaraz as both an exploration test and a tenure milestone. If the programme confirms deeper zinc-rich mineralisation or parallel structural corridors, it may strengthen the case for Guajaraz as more than a secondary portfolio asset. In the meantime, the company appears set for an active second half across both of its Spanish projects.
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