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Latin’s initial tests confirm very high-grade halloysite and ultra-bright white kaolin at Noombenberry Project

The company has formally engaged an independent consulting group to undertake a maiden mineral resource estimate for the project in Western Australia.

Latin Resources Ltd - Latin’s initial tests confirm very high-grade halloysite and ultra-bright white kaolin at Noombenberry Project
Selected bright white -45 micron kaolinized granite samples from the Noombenberry project

Latin Resources Ltd (ASX:LRS) (FRA:XL5) has confirmed very high-grade halloysite, with grades of up to 37% halloysite, and ultra-bright white kaolin in detailed test-work on samples from the company’s 100%-owned Noombenberry Project in WA. 

Initial results have been received from test-work carried out on a batch of 100 samples from aircore drilling. 

The results also confirmed multiple intersections over 20% halloysite, as well as bright white (>75 ISO Brightness) to ultra-bright white (>84 ISO Brightness) kaolinite development across broad zones with a maximum reported intersection of 32 metres and an average of 13 metres. 

Moving towards maiden resource

While the first batch of results represents more than 15% of the total number of holes drilled, they are extremely encouraging, enabling the company to move forward to undertake its maiden JORC resource.

LRS has engaged an independent consulting group to undertake a maiden mineral resource estimate for the Noombenberry Project, with geological domaining and the construction of wireframes well underway.

Its geological team is working closely with the independent consultants to fast-track the estimation process once all results from test-work are received.

“Extremely exciting time” for LRS

LRS executive director Chris Gale said: “We are extremely pleased with these initial results from test work from the Noombenberry project, which confirm the presence of very high-grade halloysite contained within the bright-white kaolinitic clays.

“While these results are from just a small portion of the drilling completed at Noombenberry, our logging suggests that we have intersected similar kaolinized granite across the 18 square kilometres tested by the full program, and we are yet to have results back from the area where we have logged our thickest kaolin intersections which were up to 50 metres.

“Having engaged our independent resource consultants, Latin's team is now working on building the geological models for the company’s maiden resource estimate.

“This is an extremely exciting time for the company, as we believe that the Noombenberry Project has the potential to unlock significant value for Latin shareholders due to the sheer scale and quality of the material discovered by our team.”

High-grade results

Best results include:

  • 17 metres at 15.0% halloysite, 79.2% kaolinite, 77 ISO-B from 9 metres including 7 metres at 27.3% halloysite, 66.6% kaolinite, 72 ISO-B from 9 metres;
  • 18 metres at 13.5% halloysite, 68.0% kaolinite, 79 ISO-B from 2 metres including 8 metres at 20.1% halloysite, 68.2% kaolinite, 81 ISO-B from 2 metres;
  • 32 metres at 11.8% halloysite, 75.6% kaolinite, 81 ISO-B from 13 metres including: 13 metres at 28.9% halloysite, 46.4% kaolinite, 79 ISO-B from 32 metres; and
  • 16 metres at 12.2% halloysite, 66.2% kaolinite, 74 ISO-B from 8 metres.

Intersections of kaolinized granite in the 14 holes for which results have been received to date average 13 metres, up to a maximum of 32 metres thickness, while the average depth to the top of the kaolinite zone in these holes is just 8 metres below surface.

Regular results expected weekly

The nature of kaolinite and halloysite mineralisation, being very similar minerals, means that very detailed and time-consuming test-work is required to gain accurate and reliable results.

LRS has been working closely with the various groups undertaking the test-work of the Noombenberry samples, including Bureau Veritas Laboratories, CSIRO and the University of South Australia to streamline this process and enable a steady throughput of samples.

This collaboration enables Latin to receive regular results consistently from all groups on a weekly basis.

Recommence drilling

The company plans to re-commence drilling once all statutory approvals have been received to extend the current drill coverage into its adjacent 100%-owned tenement (E77/2624), where initial results show the bright-white kaolin and high-grade halloysite mineralisation is open to the north.

Aircore samples from all the holes across the very large 18 square kilometres area tested at Noombenberry has shown the development of a thick consistent blanket of kaolinized granite.

With these initial results confirming the bright white nature of the kaolinite material, and halloysite development in a high proportion of the holes, where results have been received, LRS is very confident about the potential of this emerging and exciting discovery.

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Latin Resources highlights very high-grade halloysite results from test-work...

Latin Resources Ltd's (ASX:LRS) (FRA:XL5) Chris Gale speaks to Proactive's Andrew Scott soon after confirming very high-grade halloysite, with grades of up to 37%, and ultra-bright white kaolin in detailed test-work on samples from the company’s Noombenberry Project in WA. Initial results have...

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