High grade gold in early stage drilling at Sandstone

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Stock Brightstar Resources Ltd (BTR.ASX)
Release Time 3 Jul 2025, 8:18 a.m.
Price Sensitive Yes
 High grade gold in early stage drilling at Sandstone
Key Points
  • Significant assay results from exploration and extensional RC drilling across multiple prospects at the Sandstone Project
  • Drilling at Hacks West, Havilah, and Bulchina prospects returned outstanding results, demonstrating the prospectivity of the Sandstone Hub
  • Follow-up drilling planned to further delineate the high-grade mineralization
Full Summary

Brightstar Resources Ltd (ASX: BTR) has received further results from the ongoing +80,000m infill and extensional drilling program at the 1.5Moz at 1.5g/t Au Sandstone Hub, located in the East Murchison region of Western Australia. The current assay results are from exploration and extensional RC drilling across multiple prospects at the Sandstone Project, with outstanding results returned for all prospects drilled, further demonstrating the prospectivity of Sandstone and the potential for future discovery of additional gold deposits. At the Hacks West prospect, located 2km west of the historic Hacks Mine, the RC drilling targeted extensions to mineralization beneath shallow historical workings, returning significant intercepts including 1m @ 38.3g/t Au from 46m. At the Havilah Camp, the RC drilling further tested the down plunge extension of a previously reported high-grade intercept, with significant results including 4m @ 17.4g/t Au from 110m, including 1m @ 61.2g/t Au from 111m. At the Bulchina prospect, the RC drilling was designed to follow up significant gold intersected in shallow historical drilling along strike to the south of the Bulchina Deposit, returning results such as 11m @ 2.26g/t Au from 109m, including 1m @ 10.3g/t Au from 116m. Brightstar plans to conduct further drilling to fully delineate the high-grade mineralization at these prospects and test other priority targets within the Sandstone Hub.

Outlook

Brightstar continues to rapidly explore across the three operating hubs, seeking to grow the size and quality of the group Mineral Resource Estimate. Surface diamond drilling has commenced at the Fish Deposit (Laverton Hub) with underground diamond drilling to follow. The RC drill rig has moved to the Menzies Hub to complete the second phase of RC drilling at the Yunndaga deposit, with the diamond rig to also follow to Yunndaga once the Fish program has been completed. RC drilling continues within the Sandstone Hub, with the drill rig currently at the Musketeer Deposit completing extensional drilling at depth outside the current mineral resource, prior to moving to the Lords Corridor prospect for exploration drilling.