Siren Gold Uncovers High-Grade Antimony and Gold at Langdons Project

Siren Gold Limited has revealed promising high-grade antimony and gold mineralisation at its Langdons Project near Reefton, New Zealand, highlighting significant exploration progress in a historically mined area.

  • 2m thick antimony-bearing shear zone with up to 8.5% antimony detected
  • Massive stibnite samples containing up to 60% antimony identified in mullock heap
  • Quartz reef with gold mineralisation traced over 25m and remains open-ended
  • Historical mining data supports high-grade gold and antimony potential
  • Exploration permit renewal pending; drilling targets to be defined
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Rediscovering Langdons’ Rich Legacy

Siren Gold Limited (ASX – SNG) has delivered an encouraging update on its Langdons Project, situated near Reefton in New Zealand’s Paparoa Goldfield. The project area, historically mined since the late 19th century, is showing renewed promise with recent fieldwork uncovering high-grade antimony and gold mineralisation. This resurgence taps into a legacy of rich deposits, with early records noting gold grades as high as 2,610 grams per tonne and antimony concentrations exceeding 60% in some samples.

Recent Fieldwork Highlights

Exploration teams have exposed a 2-metre thick shear zone at the Langdons Antimony Reef, revealing significant arsenopyrite and stibnite mineralisation. Portable XRF (pXRF) analyses indicate antimony concentrations reaching 8.5%, alongside elevated arsenic levels. Additionally, massive stibnite samples from the mullock heap show antimony content between 45% and 61%, underscoring the high purity of the mineralisation. Complementing these findings, a quartz reef located approximately 90 metres below the antimony lode was traced along a 25-metre strike length, with gold assays pending but initial indications suggesting substantial grades.

Geological and Historical Context

The Langdons Project lies within the Greenland Group rocks, geologically akin to the Reefton Goldfield known for structurally controlled gold deposits. The area’s complex folding and faulting have created multiple mineralised reefs, including Langdons, Victory, Liberty, and Midnight. Historical mining operations, dating back to 1879, produced notable quantities of gold and antimony, though exploration has been limited since the 1950s. Recent geochemical soil surveys and mapping have identified anomalous gold and antimony trends extending beyond known reefs, suggesting potential extensions beneath cover rocks.

Strategic Outlook and Next Steps

CEO Zane Padman emphasised the project's potential amid rising gold and antimony prices, noting New Zealand’s improving attractiveness for mining investment. Siren Gold is advancing its exploration strategy with plans to secure a new exploration permit following the expiry of the current prospecting permit. Upcoming activities include further mapping, soil geochemistry expansion, trenching to connect known reefs, and efforts to locate the historically significant Victory Reef. The company also intends to apply for drilling access agreements with the Department of Conservation to enable resource definition drilling.

While assay results from recent channel and soil samples are awaited, the combination of historical data and fresh field evidence positions Langdons as a compelling early-stage project with significant upside potential in the antimony and gold sectors.

Bottom Line?

As Siren Gold prepares to drill, Langdons stands at the cusp of transforming historic promise into modern mineral wealth.

Questions in the middle?

  • When will the pending assay results from channel and soil samples be released, and what grades will they confirm?
  • How quickly can Siren Gold secure the exploration permit and Department of Conservation drilling access?
  • What scale of mineral resource might be defined once drilling commences and how will that impact project economics?