Adelong Gold (ASX:ADG) Visible Gold Observed in Second Diamond Hole Drilling at Lauriston – Assays Pending
21 November 2025
Price Sensitive Announcement $
Highlights:
- First two diamond drillholes completed for a combined total of approximately 444.6 metres
- Both holes intersected multiple zones of shearing, quartz veining and sulphidebearing mineralisation consistent with the high-grade Au-Sb system
- Minor visible gold observed in AC2502 within Comet shear at 100.5m, validating historic exploration results
- Sampling underway with assays expected before the end of December
- Third hole (AC2503) underway as a ~100 metre step-out to the north along the Comet-Trojan structural corridor
- Drilling to continue into early 2026 to systematically test the multi-kilometre strike potential
Overview:
Adelong Gold Limited (ASX:ADG) has provided an update on ongoing diamond drilling at the Lauriston Gold-Antimony Project in Victoria. The program forms part of the broader campaign outlined in the Company’s announcement dated 8 October 2025, which detailed the planned 3,000 metre drill program across the Comet and Yankee-Trojan prospects. The current work continues to build upon the structural and geochemical model described in that announcement, including the presence of epizonal gold-antimony mineralisation analogous to Fosterville and Costerfield1.
The first two diamond drillholes have been completed for a combined 444.6 metres and intersected strong zones of shearing and quartz-sulphide veining consistent with the epizonal Au-Sb system at Lauriston. Visible gold was recorded in AC2502 within a structurally complex interval (refer to Figures1 and 2) with assays pending.
Core from both holes is being sampled and will be dispatched for priority analysis, with results expected before the end of December.
Drilling Progress and Geological Observations
The first two diamond drillholes of the current program have now been completed for a combined total of approximately 444.6 metres. Both holes intersected significant zones of shearing and quartz-sulphide veining, with textures and mineral associations consistent with previously identified epizonal Au-Sb systems at Lauriston.
AC2501 extends the Comet Shear down dip by approximately 80m, demonstrating the consistency of the host structure. In the second hole, AC2502, visible gold was observed. The interval contains brecciated and stylolitic quartz veins within the Comet Shear, with gold occurring as small free grains along micro-fractures in quartz and on grain boundaries adjacent to arsenopyrite. Gold grains observed are typically <0.5mm. The mineral assemblage consists of quartz, arsenopyrite, pyrite and trace stibnite.
This is the first recorded instance of visible gold in the current program and provides confirmation of the high-grade tenor demonstrated in historic holes such as CRC07 (8.0 metres at 104 g/t Au, including 2.0 metres at 413 g/t Au. These exploration results were first disclosed in the Company’s ASX announcement dated 8 October 2025). Continuity of mineralisation will be assessed as the program advances along strike and as assay results are received.
Company Notes:
Adelong Gold Managing Director, Ian Holland, said:
“Observing visible gold in AC2502 is a positive geological observation and reinforces our view that Lauriston hosts a prospective mineral system. These first holes are delivering the structural, geological and mineralogical signatures we expect from an epizonal Au-Sb environment. As drilling steps out along the Comet-Trojan corridor, we are building important momentum toward unlocking the broader potential of this project.”
Full ASX Announcement: https://hotcopper.com.au/threads/ann-lauriston-drilling-visible-gold-amended.8896480/