Key Highlights

  • Hole TMHDD26005 returned 305 metres at 2.66 g/t gold from 503 metres, including 4.1 metres at 26.1 g/t.
  • Hole TMHDD26004 returned 80 metres at 2.64 g/t gold and 240 metres at 1.16 g/t gold, with bulk intercepts in tonalite.
  • Both holes continued below the current mineral resource estimate of 24.6 million tonnes at 1.8 g/t gold.
  • Assays for the fourth hole in the four-hole program are still pending.

Brightstar Resources Limited (ASX:BTR) has reported assays from two deep diamond holes at its Two Mile Hill deposit within the Sandstone Gold Project, according to an announcement dated 12 November 2026. The holes form part of a four-hole program of about 3,800 metres designed to test the continuity of the Shirvington Zone at depth. The deposit currently has a mineral resource estimate of 24.6 million tonnes at 1.8 grams per tonne gold, containing 1.45 million ounces.

Bulk intercepts in hole TMHDD26005

Hole TMHDD26005, drilled 50 metres north of the central hole, returned 305 metres at 2.66 g/t gold from 503 metres in tonalite. Higher-grade sub-intervals within it included 4.1 metres at 26.1 g/t from 531.9 metres, 5.5 metres at 25.2 g/t from 617.6 metres and 4 metres at 60.8 g/t from 679.9 metres. A further 21 metres at 2.20 g/t came from 655 metres.

Bulk intercepts in hole TMHDD26004

Hole TMHDD26004 produced two bulk intervals. The first returned 80 metres at 2.64 g/t gold from 499 metres, including 1 metre at 160 g/t, and the second returned 240 metres at 1.16 g/t from 601 metres, including 43 metres at 3.49 g/t from 608 metres. These intervals are described as bulk intercepts rather than true-width estimates.

Relevance to the resource

The company says the intercepts continued materially below the current resource estimate into the tonalite, which it sees as clear upside to future resource growth. It also cites earlier deep assays from the Two Mile Hill-Shillington area, including 305 metres at 1.33 g/t and 225.7 metres at 3.11 g/t. The deep intervals are wide, but their width and grade are not yet converted into a resource.

Final Word

The deep Shirvington results extend the mineralised system below the existing resource, with several high-grade sub-intervals in wide bulk zones. The fourth hole and any resource update will show whether these intervals convert into a larger inventory. Until then, the bulk intercepts should be viewed as encouraging exploration results rather than a measure of economic grade.