Olympio Metals Returns Up to 1,509g/t Silver and 16.41% Antimony from Raven Project Grab Samples

Shwetambri Chauhan

04 November 2026 10:15 AM AEDT

Olympio Metals Returns Up to 1,509g/t Silver and 16.41% Antimony from Raven Project Grab Samples

Image Source: Krish Capital Pty Ltd

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Olympio Metals Limited (ASX:OLY) has disclosed results from five reconnaissance grab samples collected from historical waste dumps at the Raven and Silver King mines in Montana, USA, with individual samples returning up to 1,509g/t silver, 16.41% antimony, 1.62% copper, 6.33% lead, 1.33% zinc, 13.9g/t indium and 1,037.2 ppm tungsten.

Key Points

Five reconnaissance grab samples from historical mine dumps at Raven and Silver King returned results including 1,509g/t silver (SK-26-002) and 16.41% antimony (RN-26-001)
The Raven Project consists of 27 mineral claims located 390km northwest of Helena and 15km from Thompson Falls, Montana, USA
A historical porphyry system known as Liver Peak, located 2km northwest of the Raven project area, has been identified from historical records and regional geophysical data
Silver, copper, lead, zinc, antimony, indium and tungsten are all included on the 2025 US Critical Minerals List
The deeper porphyry target at the Raven Project has never been drilled

Grab Sample Assay Results from Raven and Silver King Mines

The five grab samples were collected from material previously sorted by historical mining operations. Sample SK-26-002 returned the highest silver result at 1,509g/t, while SK-26-003 recorded 1.62% copper, 6.33% lead and 1.33% zinc. Sample SK-26-001 returned 13.9g/t indium, RN-26-001 returned 16.41% antimony, and RN-26-002 returned 1,037.2 ppm tungsten. The company stated the samples do not establish in-situ grades, widths or continuity, and are not representative of the distribution of mineralisation. Observed primary minerals include sparse sphalerite and galena, fine-grained tetrahedrite, and massive stibnite in RN-26-001. Samples SK-26-001, SK-26-002 and RN-26-002 contained visually estimated 1–3% malachite and chrysocolla.

Liver Peak Porphyry System Context

Olympio's review of regional geophysical data identified large-scale anomalies in the Liver Peak area using aeromagnetic and regional gravity survey compilations. Historical summaries report approximately 6,600 metres of drilling by three companies between 1967 and 1981 at Liver Peak, though original drill reports and exact hole locations have not been located. Historical records describe a 2.7km by 2.1km elliptical zone of strong hydrothermal alteration and quartz veining. The company disclosed that Liver Peak is associated with a magnetic high and a quartz-eye porphyry system along a regional structural trend that passes through the Raven project area, and that regional gravity data show a broad low proximal to the Liver Peak area.

Exploration Strategy and Historical Production Records

The Raven Project hosts the historic Raven Silver Mine, formerly known as the Copper Mask Mine, and the Silver King Mine, within the Thompson River mining district. Historical production records for the Raven Mine show an average grade of 2,084g/t silver and 19.51% copper across 85 tonnes of total production. The Silver King Mine recorded an average grade of 996g/t silver across 477 tonnes of total production. The company is assessing whether the historical Raven, Silver King and Copper King veins could be linked to a deeper hydrothermal system with porphyry potential, with the company working towards a maiden drill program. The regional structure passes proximal to the gravity low and is described as a high-priority target for deeper drill testing.

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