Alkane Advances Near-Mine Kendal Deposit with High Grade Antimony-Gold Intercepts at Costerfield
Executive Summary
- Alkane Resources announced significant high‑grade gold and antimony intercepts from the 2025 Kendal extension/infill drilling program at its Costerfield operation in Victoria, Australia.
- Multiple drill holes returned exceptionally high grades, e.g., 132.2 g/t Au & 19.8 % Sb over 1.94 m (PD222) and 267.5 g/t Au & 5.6 % Sb over 2.3 m (BC464), indicating a large, shallow‑level mineralised system adjacent to the currently mined Youle deposit.
- The company plans to integrate these results into its resource model, commence access development from existing infrastructure in late 2025, and continue drilling into 2026 to expand the Kendal resource and extend mine life.
Key Details
- Program Overview
- Extension and infill drilling over the past year expanded the known strike length of the Kendar vein system to ~600 m with an average width of ~70 m.
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Development to access newly defined mineralisation began in late 2025; further drilling is scheduled for 2026.
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Notable Intercepts – Selected Highlights
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501 Vein (south, above Youle)
- PD222: 132.2 g/t Au, 19.8 % Sb over 1.94 m (ETW 1.04 m)
- PD220: 25.3 g/t Au, 42.8 % Sb over 1.71 m (ETW 0.97 m)
- AG023: 13.5 g/t Au, 22.1 % Sb over 2.67 m (ETW 1.24 m)
- BC437: 25.4 g/t Au, 8.3 % Sb over 1.28 m (ETW 1.12 m)
- BC112A: 34.1 g/t Au, 12.9 % Sb over 0.76 m (ETW 0.69 m)
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520 Vein (greater than 500 m strike)
- BC464: 267.5 g/t Au, 5.6 % Sb over 2.3 m (ETW 1.22 m) – highest gold grade reported.
- BC463: 143.7 g/t Au, 10.8 % Sb over 1.35 m (ETW 1.06 m)
- BC466A: 18.2 g/t Au, 11.9 % Sb over 2.44 m (ETW 1.92 m)
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Additional High‑Grade Intercepts
- 501 Vein – 50 g/t Au, 48.3 % Sb over 0.21 m (KD529)
- 519 Vein – 138 g/t Au, 7.7 % Sb over 0.27 m (BC143)
- 523 Vein – 261 g/t Au, 32.5 % Sb over 0.15 m (BC416)
- 545 Vein – 84.4 g/t Au, 35.2 % Sb over 0.41 m (BC470)
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Geological Context
- Kendal is the antimony‑rich up‑dip continuation of the high‑grade Youle and Shepherd deposits.
- Veins are sheeted quartz–carbonate structures with massive stibnite cores; gold occurs as coarse “rusty” particles.
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Structural controls include bedding‑parallel faults and a major west‑dipping thrust fault that transitions into the Youle lode.
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Future Plans
- Integrate Kendal drill results into the Costerfield resource model and life‑of‑mine plan.
- Begin access development from existing infrastructure (late 2025).
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Continue drilling of Kendal, including underexplored Costerfield Main reef and extensions toward Brunswick South and Cuffley deposits; resume drilling in 2026.
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Management Quote
“The drilling results obtained from the Kendal deposit over the past year demonstrate the large potential remaining for significant high‑grade mineralisation at shallow levels near to the Costerfield mine. Accessing and mining the newly defined mineralisation is a top priority… and should provide the processing plant with an additional source of high‑grade gold and antimony ore for some time to come.” – Nic Earner, Managing Director & CEO
Notable Quotes
- Nic Earner (MD & CEO): “The drilling results obtained from the Kendal deposit over the past year demonstrate the large potential remaining for significant high‑grade mineralisation at shallow levels near to the Costerfield mine… should provide the processing plant with an additional source of high‑grade gold and antimony ore for some time to come.”