95.8 % gold recovery at Western Mali

Diba gold project excellent results 

Altus Strategies announces excellent results from metallurgical testwork on oxide and sulphide samples from the Company’s 100 % owned Diba gold project in western Mali. The work was undertaken to test the amenability of Diba ores to carbon-in-leach and heap leach processing. The findings of the process said, Excellent gold recoveries from oxide and sulphide samples from Diba gold project in Mali.

Steven Poulton, Chief Executive of Altus, commented, “The results of the metallurgical testwork on both oxide and sulphide material from Diba are simply excellent. Heap leach amenability shows 95.8 % gold recovery at a coarse crush size. 

This recovery is significantly higher than the 80 % modelled in the current PEA which we reported on in July. More significantly, the testwork on fresh (sulphide) samples shows that CIL processing will likely be very effective, with 86.8 % gold recovery at attractive grind sizes. 

 “Diba already boasts a robust US$81M post-tax NPV for the oxide ounces alone. The significantly enhanced recoveries and addition of the sulphide resource, should add considerable economic value to the Project. We have commissioned an updated independent PEA and look forward to reporting on the results in due course. 

 “Aside from the existing resource area, Altus has defined seven priority prospects at Diba, none of which have ever been systematically drill tested. These prospects are all located within 7 km of the current mineral resource, which itself is only 13 km from the multi-million ounce Sadiola gold mine. Altus is currently planning a drill programme for Diba and we look forward to providing an update on this in due course.” 

Preliminary Economic Assessment (PEA) of the Company has engaged Mining Plus UK Ltd to update the existing Diba PEA to incorporate the higher oxide recoveries reported in this release (95.8 % compared to 80 % used in the existing PEA). 

Importantly, the PEA will be broadened to model CIL processing to incorporate the current sulphide MRE of 33,600 ounces at 1.12 g/t Au Indicated and 153,300 ounces at 1.05 g/t Au Inferred as set out. Incorporating the oxide and sulphide resource and using the higher processing recoveries is expected to have a materially positive impact on the current US$81m (post-tax) NPV10 as calculated under the existing PEA.





 

Comments

Post a Comment

Popular posts from this blog

AI, virtual reality & big data impacts on industry

Image
CIBJO Technology Committee publishes the Report!     With just six days to go to the opening of the 2023 CIBJO Congress in Jaipur, India, on October 3, 2023, the tenth and final edition of this year’s pre-congress special reports has been released. Prepared by the CIBJO Technology Committee, headed by Stéphane Fischler, the report looks at the impacts of new technologies on the jewellery industry, and in particular those related to artificial intelligence, virtual and augmented reality, and big data.   “We need to learn as we move along, investing in digital infrastructure and talent, and using the data we capture in a legal and optimal fashion,” Fischler writes. “To prosper in this brave new world, we have to innovate in order not to be left behind.”   All of the various system discussed are dependent on the availability of data, collected via the Internet, and also increasingly from the data generated by the new technologies being introduced, he states. “But it is not enough t
Read more

BFC & Pandora announce the fashion awards

Image
Ties principal partnership for TFA 2023 The British Fashion Council (BFC) is delighted to welcome Pandora, the world’s largest jewellery brand, as the Principal Partner of The Fashion Awards 2023 (TFA) taking place in London on Monday 4th of December at the Royal Albert Hall.  The BFC and Pandora will work together to evolve TFA 2023 presented by Pandora as a global entertainment platform, celebrating fashion's role at the intersection of culture and entertainment, spotlighting creative talent and telling the stories of the year in fashion through the lens of purpose, excellence and creativity. The event also serves as the primary fundraiser for the BFC Foundation.   
Read more

GJEPC championing talent, celebrate design & craftsmanship

Image
The 7th Artisan Jewellery Design Awards held in Mumbai   The 7th edition of The Artisan Jewellery Design Awards, hosted by the Gem & Jewellery Export Promotion Council (GJEPC) and powered by GIA, challenged designers to tap uncharted territory by integrating unusual materials and cherished objects into their jewellery designs, to infuse their pieces with a unique identity.   Actress and style icon Sonam Kapoor graced GJEPC’s 7th edition of Artisan Jewellery Design Awards in Mumbai and presented awards to winners. Sonam Kapoor graced the stage with an aura of elegance and charisma along Vipul Shah (Chairman, GJEPC); Kirit Bhansali (Vice Chairman, GJEPC); Sriram Natarajan (Managing Director, GIA India); Milan Chokshi (Convener, Promotions & Marketing, GJEPC); Sabyasachi Ray (Executive Director, GJEPC) bestowed the coveted awards upon 6 Artisan winners.  This year the theme for the Artisan Jewellery Design Award were two unconventional themes - Objet Trouvé (Found Objects) and
Read more