Highlights

• RDN has advanced field sampling and mapping at Andover South.
• Seven target zones have been identified to date on the project.
• Target Zone 7 extends 650m along a northwest strike and is characterised by a high degree of fractionation, indicating potential for lithium-caesium-tantalum (LCT) mineralisation.
• Further detailed mapping is planned, with the possible inclusion of Zone 7 in the maiden drilling program.

Raiden Resources Limited (ASX:RDN, DAX:YM4) has released the latest results from pegmatite analysis and mapping conducted across the Andover South Lithium Project tenements. CSA Global geologists have been re-engaged to support further field sampling campaign, which included mapping previously undefined pegmatites and analysing the outcrop minerology.

So far, seven target zones have been identified, with mapping confirming a new high-priority zone at the project. Target zone 7’s pegmatites extend 650m along a northwest strike, believed to represent a dislocated extension of the high-priority Target Area 1.

Notably, Zone 7 displays a high degree of pegmatite fractionation, as indicated by the potassium/rubidium (K/Rb) ratio, suggesting potential for lithium-caesium-tantalum (LCT) mineralisation.

The next steps will involve further detailed mapping, with the possibility of incorporating Target Zone 7 into the upcoming maiden drilling program.

Objective of additional field sampling campaign

• Determine the fractionation states by sampling and evaluation of potassium-feldspar (K-Feldspar) minerals from pegmatites.
• Extend previously defined fractionation trends into unexplored areas of the Andover South pegmatite field.
• Analysis of the fractionation trends with the intend to identify new zones of interest for drill planning.
• Furthermore, pegmatites that had returned low lithium oxide (Li₂O) values were re-evaluated in the field to assess their fractionation and potential for LCT mineralisation, which had not been confirmed through earlier sampling.

Key observations from the recent fieldwork

• As part of the fieldwork, 91 sample locations were visited, covering known pegmatites and their extensions and newly identified pegmatite outcrops. The collected K/Rb fractionation data from K-Feldspars were added to the existing database.
• In the northwestern part of the E47/4062 tenement, new pegmatite outcrops were mapped, consistently striking in a NW-SE direction. These outcrops are, extend over a strike length of approximately 650m.
• Significant field observations revealed that K-Feldspar K/Rb data indicate the pegmatites are highly fractionated, with values below 20, and many falling below 10. These readings are consistent with the mineralised pegmatites to the east. Based on this data, the pegmatites in Target Zone 7 have been prioritised for further evaluation, with management considering their inclusion in the upcoming maiden drilling campaign.
• The Andover South pegmatites specifically demonstrate that high-grade lithium mineralisation is linked to K/Rb values below 10.

Summary of previously defines target zones

Data source: Company update

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