By Charles Pitts
Nexus Minerals (ASX: NXM) has reported a significant high-grade gold intercept at its flagship Wallbrook Project in Western Australia, returning a headline result of 19.00 g/t Au at the Payns Prospect. The result confirms the continuity of high-grade mineralization within the project’s central corridor and reinforces the company’s strategy to deliver a maiden Mineral Resource Estimate (MRE) by the third quarter of 2026.
The discovery at Payns (also referred to as “Payns Find”) is part of an accelerated drilling campaign designed to convert exploration success into a formal JORC-compliant resource. Located in the Eastern Goldfields, approximately 140 kilometers northeast of Kalgoorlie, the Wallbrook Project is situated in one of the most prolific gold-producing regions in the world, sitting immediately north of Northern Star Resources’ multi-million-ounce Carosue Dam operations.
High-grade intercepts at Payns Prospect
The 19.00 g/t Au intercept marks a pivotal moment for the Payns Prospect, which has seen its mineralized footprint expand to approximately 900 meters by 750 meters. The latest results indicate that the high-grade core of the system remains open at depth and along strike, suggesting further potential for resource growth.
This latest drill result follows a series of successful campaigns across the Wallbrook corridor, including high-grade hits at the Clement and Branches prospects. Earlier this year, drilling at Clement returned results as high as 26.53 g/t Au, highlighting the regional high-grade nature of the geological system.
The drilling at Payns was specifically targeted to test for extensions of previously identified mineralization within the “Wallbrook Gold Corridor.” This corridor is characterized by a series of north-south trending structural zones that host significant gold deposits. The 19 g/t intercept was located within a broader zone of mineralization, indicating a robust structural control that is typical of the high-grade deposits found in the neighboring Carosue Dam district.
Road to the Q3 2026 maiden resource estimate
With the completion of the current diamond and RC (Reverse Circulation) drilling phases, Nexus Minerals is now pivoting toward resource modeling. The company has confirmed that the Payns Prospect, along with Clement and Branches, will be the primary focus of the maiden MRE, currently slated for release in Q3 2026.
The pathway to a maiden resource involves several critical steps:
- Infill Drilling: Closing the spacing between drill holes to increase the geological confidence of the resource from “Inferred” to “Indicated.”
- Geological Modeling: Integrating structural, lithological, and assay data to create a 3D model of the gold-bearing zones.
- Metallurgical Testing: Initial tests to determine the gold recovery rates and processing characteristics of the ore.
- Resource Estimation: Final calculation of total ounces and grade by independent geological consultants.
The Q3 2026 timeline is seen by analysts as a realistic target given the current density of drilling and the consistency of the results seen to date. For investors tracking gold mining news 2026, the delivery of a JORC-compliant MRE is often the most significant catalyst for a re-valuation of junior exploration companies.
Wallbrook’s strategic location and infrastructure
The “near-mine” exploration model has been a key driver of value in the Western Australia gold sector. Nexus Minerals’ Wallbrook project is strategically positioned between Northern Star’s Carosue Dam plant to the south and the Porphyry mining center to the north.
The proximity to existing infrastructure: specifically the Carosue Dam processing facility: significantly lowers the economic hurdle for any future development at Wallbrook. In the mining industry, “stranded” deposits often struggle with the high capital costs of building a mill. However, Wallbrook’s location within trucking distance of established mills makes even smaller, high-grade deposits potentially viable through toll treatment or ore-purchase agreements.
| Prospect | Key Intercept (g/t Au) | Mineralized Footprint | Status |
|---|---|---|---|
| Payns | 19.00 | 900m x 750m | Resource Drilling |
| Clement | 26.53 | ~600m strike | Resource Drilling |
| Branches | 14.20 | ~800m strike | Resource Drilling |
| Crusader | 11.50 | 1.6km corridor | Exploration |
Geological context: The Eastern Goldfields advantage
The Eastern Goldfields of Western Australia remain the premier destination for Western Australia gold exploration. The region’s geology is defined by greenstone belts: sequences of volcanic and sedimentary rocks that have been subjected to intense heat and pressure, creating the structural pathways for gold-bearing fluids.
At Wallbrook, the gold is predominantly hosted within sheared and altered volcanic rocks, often associated with quartz-carbonate veining and pyrite (fools’ gold) mineralization. The 19 g/t Au hit at Payns was associated with a particularly strong zone of quartz veining, which geologists believe may be a “feeder zone” for the wider mineralized system.
The “Porphyry-style” mineralization found in this corridor is known for its depth extent. Nearby mines, such as Northern Star’s Karari and Whirling Dervish, have successfully transitioned from open-pit to large-scale underground operations, providing a potential long-term blueprint for Nexus if the resource continues to hold at depth.
2026 Market Outlook for gold exploration
The timing of Nexus Minerals’ resource update aligns with a period of heightened interest in precious metals. As noted in recent Skillings Mining Intelligence reports, central bank buying and geopolitical uncertainty have provided a solid floor for gold prices heading into late 2026.
For junior explorers like Nexus (ASX: NXM), high-grade results are the primary currency for attracting institutional interest and funding. In a market where capital is increasingly focused on high-quality, Tier-1 jurisdictions like Western Australia, the ability to demonstrate a 19 g/t Au grade is a significant differentiator.
Managing Director Andy Tudor has consistently emphasized the “system scale” of Wallbrook. “What we are seeing at Payns is not an isolated hit,” Tudor remarked in a recent technical briefing. “It is part of a much larger, multi-prospect system that we are systematically de-risking as we move toward our maiden resource estimate next year.”
Operational risks and considerations
While the Nexus Minerals drill results are encouraging, several risks remain common to exploration-stage projects:
- Grade Continuity: High-grade “nuggety” gold can sometimes be difficult to model accurately, requiring dense drilling to ensure the resource estimate is robust.
- Permitting: Any transition from exploration to mining will require environmental approvals and native title agreements, processes that can be lengthy.
- Funding: Junior miners often require multiple capital raises to fund the intensive drilling needed for resource definition, which can lead to shareholder dilution.
However, Nexus’ strong cash position and disciplined approach to exploration have helped mitigate these risks to date. The company’s focus on the “Golden Corridor” ensures that every meter drilled is contributing to a cluster of prospects that could eventually feed a centralized processing hub.
Conclusion: A pivotal year for Nexus Minerals
As Nexus Minerals moves through the remainder of 2026, the industry’s eyes will be on the final assay results from the Payns and Clement prospects. The 19 g/t Au intercept has set a high bar for the project, confirming that Wallbrook has the “grade” required to compete with the major deposits in the Eastern Goldfields.
The upcoming Q3 2026 maiden resource estimate will be the ultimate test of whether these high-grade hits can be converted into a meaningful inventory of gold ounces. For operators and investors alike, Wallbrook represents one of the most active and promising exploration stories in the WA gold sector today.
