An innovative in-situ recovery (ISR) copper production concept for the Moonta Cooper Project is being evaluated by the Company with discussions with interested groups who possess ISR expertise and technical capacity currently underway

ISR copper potential for Moonta Project

The Wombat and Bruce deposits on the Moonta Project have attributes that may allow copper production using innovative hydrometallurgical in-situ recovery (ISR).

At both deposits copper mineralisation occurs in deep sub-vertical weathering troughs that extend hundreds of metres below the surface.

Estimated combined Wombat and Bruce Exploration Target is 80 to 120 million tonnes at a grade of 0.18% to 0.23% copper (145,000 to 275,000 copper tonnes), comparable to resources at international ISR copper projects. The potential tonnage and grade of the Exploration Target is conceptual in nature as there has been insufficient exploration to estimate a Mineral Resource, and it remains uncertain if further exploration will result in the estimation of a Mineral Resource.

Weathered material in the troughs appears to be both porous and permeable, allowing lixiviant flow and copper phase contact, while the troughs are exclosed by fresh impermeable rock that can prevent lixiviant escape.

Simple, preliminary leach tests on composite samples confirm copper solubility of up to 65%, and lixiviant studies to optimise copper into solution appear warranted.

Both deposits are open along strike, and interpretation of exploration data has identified excellent opportunities to discover additional nearby mineralisation.

Discussions are now underway with groups with ISR expertise and the technical capacity to advance the project.


ISR copper potential for Moonta Project
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Andromeda Metals Limited is an Australian Securities Exchange listed company (code: ADN) focusing on mineral exploration for gold, lithium and copper deposits. Andromeda Metals currently has interests in 21 exploration licenses, covering 7,969 sq kms within South Australia, Queensland, Western Australia and the Northern Territory. Andromeda Metals’ vision is to be a sustainable minerals exploration company providing shareholders with risk managed discovery, development and mining opportunities.

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