Belararox Limited

Belara Metallurgical Test Work Produces High Grade Concentrates

Belararox Limited (ASX:BRX) (“Belararox” or “the Company”) an advanced mineral explorer focused on high value clean energy metals, is excited to announce the initial metallurgical testwork results from the Phase 1 resource drilling at the Belara Project. The testwork aims to build upon drilling results to determine the potential of the Belara Project to host significant zinc and copper mineralisation.


Highlights

  • Sequential open circuit flotation tests on low-grade composite from early Belara drilling confirms the potential for producing saleable Copper, Lead, and Zinc concentrate grades.
  • Recoveries and concentrate grade are comparable to similar mines in the region.
  • Metal recoveries compare favourably to the significant Woodlawn Cu/Pb/Zn volcanogenic massive sulphide project located in the southern extensions of the Lachlan Fold Belt in NSW with very similar concentrate grades and saleable metal recoveries as highlighted in the below charts.
  • Favourable silver recovery of 35% in the Belara lead concentrate, vs 24% in Woodlawn lead concentrate.
  • Recoveries are expected to improve on higher grade composites, which are more reflective of the average metal grades obtained from the recently completed Phase 1 drilling.
Next Steps
  • Initial Mineral Resource Estimate to be completed during October.
  • Planning for Phase 2 exploration and drilling at Belara Project is underway and details will be announced in the coming month.
  • Heritage agreement with the Warrabinga Wiradjuri Native Title Claim Group has been executed, with grant of the remaining two Exploration Licence Applications at Belara Project progressing (ELA6176 and ELA6287).
  • Bullabulling Project (WA) drilling is to commence in early 2023 targeting the highest priority gold targets identified from recently completed 3D mineral potential mapping. The targeted Bullabulling tenements contain a large 3D model target of a scale similar to the 300,000 oz Geko gold deposit located nearby.
Managing Director, Arvind Misra, commented:

“First phase of metallurgy test work is very encouraging and confirms that saleable Copper, Lead, and Zinc concentrate grades can be produced at Belara. Metal recoveries compare favourably to the Woodlawn Cu/Pb/Zn volcanogenic massive sulphide project (owned by Develop Global Ltd) with very similar concentrate grades, and saleable metal recoveries. Recoveries are expected to improve on higher grade composites, which are more reflective of the average metal grades obtained from the recently completed Phase 1 drilling.

We remain on track to deliver our maiden Mineral Resource Estimate later this month.”

Summary of Metallurgical Test Work

Diamond drill core intervals representative of a lower grade mill feed, from early drill testing on the Belara project, were composited to form a single 23kg Master Composite, then were subjected to metallurgical characterisation and flotation testwork1.

This composite was obtained from early drill holes BLDD001 and BLDD002a drilled as part of the Phase 1 drilling program for Belara. These drill holes are considered to represent typical polymetallic stratiform sulphide mineralisation for Belara, albeit at lower grades compared to later drilling on the project. Subsequent drilling has identified higher grades e.g. BLDD028 - 3.0m at 11.17% Zn, 1.69% Cu, 2.25% Pb, 88.13g/t Ag, and 1.68 g/t Au (reference: ASX: BRX, 21st September 2022 Announcement).

Testwork was conducted at Auralia Metallurgical Laboratories under the management of JT Metallurgical Services with the key outcomes being the derivation of a flowsheet and reagent conditions capable of producing saleable copper (>20%), lead (>30%), and zinc (>50%) concentrates.

A total of eight Cu-Pb-Zn sequential flotation tests have been conducted to date with the flowsheet reflecting the historic Woodlawn polymetallic operation, noting geological and mineralogical similarities of the two projects. Flotation feed grind size and reagent regimes were assessed in open circuit tests in lieu of future locked cycle testwork. Test 7 (AM141-7) flowsheet is presented in Figure 1 with the Belara Low Grade Master Composite feed grade, concentrate grades and recoveries in Table 1 with comparison to Woodlawn historical performance (reference: ASX: DVP, 6th September 2022 Announcement). A flotation feed size of P80 53 micron was required followed by regrinding each of the rougher concentrates to sub P80 20 micron to achieve sufficient mineral liberation prior to two stage cleaning. Test 8 results are still outstanding.


Click here for the full ASX Release

This article includes content from Belararox Limited, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

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