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Metallurgical Drilling Confirms Historic Grades at the Byro REE / Li Project

by Invest Daily Pro
February 25, 2025
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Metallurgical Drilling Confirms Historic Grades at the Byro REE / Li Project
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Octava Minerals Limited (ASX:OCT) (“Octava” or the “Company”), a Western Australia focused explorer of the new energy metals antimony, REE’s, Lithium and gold, is pleased to report that laboratory assays have now been received from the two metallurgical core drillholes at the Byro REE’s / Li Project in the Gascoyne Region of Western Australia.

Highlights

  • Assay results received from metallurgical drilling at the Byro REE & Li Project confirm historic REE / Li mineralisation intercepts.
  • Intercepts of over 50m from surface with grades including 500ppm Total Rare Earth Oxides (TREO) with 20% magnetic REE’s, 375ppm Lithium Oxide (Li2O) and 523ppm Vanadium Pentoxide (V2O5).
  • Mineralisation has been intercepted in historic drilling over 30km of strike.
  • The drilling was to provide fresh samples of the Byro black shale to undergo metallurgical extraction testwork.

Octava’s Managing Director Bevan Wakelam stated;

”Octava is investigating the potential for Australia’s first, large scale, low cost sedimentary basin deposit of REE’s, lithium and base metals. Metal extraction from black shales is a proven, low- cost technology used in other operations around the world. We will commence initial metallurgical testwork to determine the viability of extracting these metals from the black shale at Byro. We look forward to providing further updates as this work proceeds.

The Byro Project is located on the Byro Plains of the Gascoyne Region, Western Australia, 220km south-east of Carnarvon and consists of two granted Exploration Licences – E 09/2673 and E 09/2674 – totalling 798 km2. The Byro Project also has Native Title agreements in place. Nearby infrastructure includes accessibility to a commercial port (Geraldton) and power from the NW gas pipeline and future potential access to Western Australian government proposed green energy sites.

Two metallurgical HQ3 coreholes were drilled for a total of 204m. The holes were drilled adjacent to previously drilled RC holes to confirm mineralisation and to provide fresh sample material for metallurgical testwork.

The Byro project lies at the centre of the Permian Byro Sub-basin of the Carnarvon Basin. The Byro Group hosts sedimentary packages of sandstones, siltstones and mudstones, including black shales and coal seams. The dominant unit in the tenure is the Bulgadoo shale, which consists of banded carbonaceous shale and arenite, containing beds of enriched pyrite, bivalves and bryozoans.

The black shales in the Byro sub basin appear to have formed a metal sink that contains large volumes of anomalous REE, Li and base metals. The source of the metals at Byro is likely the Archean basement rocks of the Yilgarn Craton located ~40km to the east. The REE host rocks at Byro have been transported to their current location, unlike typical REE clay exploration targets in Australia which are formed in situ, from weathered granitic basement rocks.

Permian Black shales are known worldwide for their potential to host enriched poly-metallic deposits. These deposits contain considerable volumes of lower concentration resources of base metals, rare earths, lithium and other strategic minerals. They offer the opportunity for large-scale, low-cost mining operations capable of supplying the metals for a number of years. Octava is examining the black shales at the Byro project for the same potential.

Click here for the full ASX Release

This post appeared first on investingnews.com

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