OD6 Metals Delivers Exceptional 53.2% Fluorspar Results at Mammoth

OD6 Metals Strikes High-Grade Fluorspar Gold with Exceptional 53.2% CaF2 Results at Mammoth

OD6 Metals (ASX: OD6) has delivered exceptional validation of its Quinn Fluorspar Project acquisition with rock chip assays returning up to 53.2% CaF2 from the Mammoth prospect. These outstanding od6 metals assay results not only confirm the historical high-grade data but demonstrate the potential for a much larger mineralised system than previously recognised.

The company is now positioned as a potential major player in the strategically critical US fluorspar market. Furthermore, the preliminary due diligence sampling has returned a suite of outstanding results from a 9,000m² prospective target zone, with multiple samples exceeding 30% CaF2.

Most significantly, mineralisation has been identified in surrounding limestone areas, indicating the high-grade system extends beyond the previously mapped breccia zone. This discovery shows strong expansion potential to the west, north, and under cover to the east.

Outstanding Assay Results Confirm World-Class Grades

The initial od6 metals assay results from Mammoth have exceeded expectations, with the highest grade of 53.2% CaF2 comparing favourably with globally significant fluorspar deposits. The complete results showcase the consistent high-grade nature of the system across multiple sample types.

These results validate the historical data reported in the 1960s and 1970s, demonstrating the reliability of the geological interpretation. Moreover, they confirm the potential scale of the deposit for future development activities.

System Expansion Potential Drives Investment Case

The most exciting aspect of these od6 metals assay results is the confirmation that high-grade fluorspar mineralisation extends well beyond the originally mapped 9,000m² breccia zone. Key expansion indicators highlight multiple growth vectors for the project.

Western Extension shows high-grade fluorspar recorded in limestone breccia (32.8% CaF2) and stockwork veins (18.8% and 17.6% CaF2) west of the main body. Additionally, Northern Potential reveals fluorspar replacement bodies identified plunging into hillsides beneath unmineralised limestone cover.

Eastern Coverage demonstrates strong geological indicators suggesting mineralisation continues eastward under cover, remaining completely untested. The Vertical Extent shows replacement-style mineralisation with significant depth potential requiring drill testing.

What Do These Results Mean for Investors?

Managing Director Brett Hazelden commented: "These initial results from Mammoth not only validate the exceptional grades reported historically, but importantly demonstrate the scale potential of the system, with mineralisation extending beyond the previously mapped breccia zone. With grades up to 53.2% CaF₂, Mammoth compares favourably with globally significant fluorspar deposits."

Understanding Fluorspar: A Critical Mineral for Advanced Technologies

Fluorspar (Fluorite – CaF2) is calcium fluoride, a mineral essential for producing hydrofluoric acid used in advanced manufacturing processes. The mineral plays a critical role in several key industries driving modern technology.

AI Semiconductor Manufacturing requires fluorspar as an essential component for chip etching processes. Advanced Battery Technologies utilise it as a key component in lithium battery production systems.

Nuclear Fuel Processing depends on fluorspar for uranium enrichment procedures. Aerospace and Defence industries require it for specialised alloys and critical components.

Why Is US Fluorspar Supply Strategically Important?

The United States currently imports 100% of its fluorspar needs, with 68% sourced from China, making domestic production a strategic priority. Fluorspar is officially listed on the US Critical Minerals List, highlighting its importance to national security.

This import dependence creates significant opportunities for domestic producers like OD6 Metals. In addition, the strategic nature of fluorspar positions successful developers to benefit from government support and long-term supply agreements.

How Fluorspar Formation Occurs

Fluorspar deposits typically form through hydrothermal processes, where hot, mineral-rich fluids flow through fractures and cavities in limestone and other carbonate rocks. These fluids deposit fluorine-bearing minerals as they cool, creating the high-grade concentrations now being discovered at Mammoth.

The replacement-style mineralisation at Quinn occurs when these hydrothermal fluids chemically alter the original limestone. This process replaces calcium carbonate with calcium fluoride (fluorspar), creating extensive zones of high-grade mineralisation.

This geological process becomes particularly effective where structural controls like folds and fractures focus the fluid flow. Consequently, these areas often host the most significant fluorspar concentrations.

Strategic Nevada Location Offers Competitive Advantages

The Quinn Fluorspar Project's location approximately 220km north of Las Vegas provides several strategic advantages for development. Nevada ranks 2nd globally in the 2025 Fraser Institute Mining Attractiveness Index, establishing it as a premier mining jurisdiction.

Existing Infrastructure includes established road networks and proximity to major population centres, reducing development costs. Historical Production demonstrates that several Quinn deposits were successfully mined in the 1950s, proving the area's commercial viability.

Strategic Proximity positions the project approximately 300km by road from the US Strategic Minerals Reserve at Hawthorne, Nevada. This location benefits from Nevada's mining-friendly regulatory environment and established infrastructure, significantly reducing development risks compared to greenfield locations.

Systematic Exploration Programme to Define Large-Scale Potential

OD6 has outlined a comprehensive exploration strategy designed to systematically advance the project and define drill targets based on the encouraging od6 metals assay results. The phased approach ensures methodical progression whilst managing costs effectively.

Phase 1 – Surface Definition includes systematic surface rock chip and channel sampling across the target areas. Furthermore, detailed geological mapping and structural interpretation will guide future exploration activities.

Soil geochemistry sampling across the broader district will help identify additional targets. Phase 2 – Drill Preparation focuses on development and prioritisation of drill targets based on Phase 1 results.

Expert Guidance Supports Technical Excellence

The programme includes commencing permitting requirements for initial drill programmes and metallurgical sampling and testing needs assessment. Dr Darren Holden, OD6's Geological Advisor, will be on site shortly to guide the exploration programme.

His expertise in fluorspar systems will support future drill targeting and ensure technical excellence throughout the exploration process.

Multiple Prospects Offer District-Scale Potential

Beyond Mammoth's 9,000m² target zone, the Quinn Fluorspar Project includes several additional prospects where future sampling could yield similar high-grade results. The Horseshoe Project covers a 3,000m² area with high-grade fluorspar mineralisation exceeding 40% CaF2.

District Occurrences include multiple fluorspar showings with reported historical results up to 94% CaF2. Additionally, Untested Targets represent numerous geological targets identified across the broader project area.

This district-scale potential positions OD6 to potentially establish one of the premier fluorspar projects in the United States. Moreover, it provides multiple development options and expansion opportunities for long-term growth.

Technical Analysis of Mineralisation Style

The Mammoth prospect displays classic epithermal fluorspar mineralisation characteristics that indicate a robust geological system. The deposit features replacement-style mineralisation where original limestone has been altered by fluorine-rich hydrothermal fluids.

Breccia-Style Mineralisation shows high-grade fluorspar occurring within fractured and brecciated limestone zones, with the 53.2% CaF2 sample representing this style. Vein Systems demonstrate purple and white fluorspar veins cutting through limestone.

These veins show structural controls on mineralisation with grades reaching 32.9% CaF2. Replacement Bodies create broad zones where limestone has been systematically replaced by fluorspar, generating bulk tonnage potential.

What Do These Geological Features Indicate?

The presence of "raccoon-tail" fluorspar textures (banded fluorspar) indicates episodic fluid flow and deposition patterns. This suggests a long-lived hydrothermal system with potential for extensive mineralisation throughout the project area.

Financial Position Supports Accelerated Development

OD6 is well-funded to accelerate exploration, providing the financial stability needed to systematically advance the Quinn Fluorspar Project. The company's strong cash position eliminates near-term funding risks and allows management to focus on value-creating exploration activities.

Additional assays from various prospects across the project are pending and will be released progressively. These results will potentially provide further catalysts for the stock as exploration activities continue.

Investment Thesis: Positioned for Critical Minerals Leadership

OD6 Metals is strategically positioned to capitalise on several powerful investment themes in the critical minerals sector. Critical Minerals Exposure benefits from 100% US import dependence creating strong domestic supply incentives.

Exceptional Grades with 53.2% CaF2 results compare favourably with world-class deposits globally. Scale Potential shows evidence of system extension beyond mapped areas suggesting larger resource potential.

Strategic Location in Nevada's premier mining jurisdiction provides established infrastructure advantages. Multiple Commodities offer diversified portfolio including rare earths (Splinter Rock) and copper (Gulf Creek).

The combination of high-grade results, expansion potential, and strategic US location creates a compelling investment case.

Why Investors Should Follow OD6 Metals

The exceptional od6 metals assay results from Mammoth represent a significant validation of the company's strategic vision and technical capabilities. With grades reaching 53.2% CaF2 and clear evidence of system expansion potential, OD6 is well-positioned to establish a significant fluorspar operation.

The broader portfolio offers investors exposure to multiple critical minerals including rare earths and copper. This diversification provides multiple value creation pathways whilst maintaining focus on strategically important commodities.

Key Takeaway: OD6 Metals has positioned itself as a major player in the critical minerals sector, with exceptional fluorspar grades confirming world-class potential at Quinn. With systematic exploration planned and strong financial backing, investors should closely monitor upcoming drill results and resource definition activities.

Next Catalysts to Watch:
• Additional assay results from various prospects (progressive release)
• Dr Darren Holden's on-site geological assessment
• Systematic surface sampling programme results
• Initial drill target definition and permitting progress
• Metallurgical testing results and process development

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