Rainbow Rare Earths - Exploration Update
("Rainbow" or the "Company")
· Results of a structural and lithological review of Gakara have confirmed the highest priority areas for the ongoing exploration programme
· Structural review and other historical mining and exploration data are being incorporated into 3D models of mineral resources and exploration targets in compliance with the standards defined in the JORC Code (2012 edition) to develop a wider understanding of the mineralised system
· Trial mining and processing continues to demonstrate that high Total Rare Earth Oxide ("TREO") grade ore sourced from across the licence area has similar metallurgical and mineralogical characteristics
The structural and lithological review, further details of which are set out in the Appendix below, involved the reinterpretation of high-resolution geophysical data by
The review combined the structural information with the comprehensive mapping database accumulated by Rainbow over several years as well as the geological knowledge derived from PhD research completed in
In parallel with the structural review and targeting, Rainbow has been reviewing the historical mining and exploration data to ensure that the full historical knowledge of the Gakara project is included in the next phase of exploration planning. The combination of historical data, recent structural analysis and upcoming 3D mineralisation models will be used to refine the targets for ongoing exploration and trial mining with a view to converting exploration targets into mineral resources.
This work is being led by
Rainbow continues to operate trial mining and processing activities, demonstrating that the ore from veins found across the licence area is amenable to simple processing via gravity separation to produce a high grade concentrate (averaging 52-58% TREO) suitable for direct shipping with minimal radioactive elements or other deleterious by-products often associated with rare earth projects.
For further information, please contact
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+27 82 652 8526
+44 (0) 20 3910 4551
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+44 (0) 20 3470 0470
Turner Pope Investments
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+44 (0) 20 3657 0050
Appendix: Details of Structural and Lithological Review
The structural and lithological review involved the reinterpretation of high-resolution geophysical data, followed by the generation of new exploration targets using a mineral systems approach. The reinterpretation, by Dr
The applied mineral systems approach considers the presence of a suitable source intrusion, the effects and extent of the mineralising fluid, the regional structural permeability and small-scale structures that host REE-bearing veins. Geophysical data, combined with the comprehensive mapping database accumulated by Rainbow over several years, allowed these primary controls to be quantified and input into a scoring grid across the license area. The result is a data-driven, objective appraisal of areas that show a coincidence of these features. These areas were ring-fenced and ranked, resulting in a total of 36 Tier-1 and Tier-2 targets and 21 Tier-3 targets. These targets are expected to be sites where REE mineralisation, in the form of vein stockworks and/or breccias, are likely to have been more intensely developed.
Notes to Editors:
Rainbow's focus is the
The Gakara basket is weighted heavily towards the magnet rare earths, including neodymium and praseodymium, which are driving demand and account for 70% of annual global REE sales due to their use in vital components in motors, generators, wind turbines, and electric vehicles.
This information is provided by RNS, the news service of the
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