Drilling At Medcalf Reveals Spodumene-Bearing Pegmatite Swarm

Charger Metals NL (ASX: CHR, “Charger” or the “Company”) is pleased to provide information for its drilling program at the Medcalf Lithium Prospect, at its Lake Johnston Lithium Project in Western Australia.

• 17 drill holes completed at the Medcalf Spodumene Prospect, near Lake Johnston, WA, before drilling finished for the year. Drilling is planned to resume in early 2023.
• Numerous stacked pegmatites, between 1 and 5 metres wide, intersected.
• Field observations include spodumene 1 in 15 of 17 holes, within a zone approximately 50m wide, which remains open at each end and at depth.

Charger’s Managing Director, David Crook, commented:

“Charger Metals’ maiden drilling program at Lake Johnston very encouragingly intersected numerous spodumene-bearing pegmatites within a 50m-wide zone. The program has provided critical information about the orientation of mineralisation aiding planning ahead of the resumption of drilling in early 2023.”

Summary of the drilling program and geological observations

The Medcalf Spodumene Prospect represents a swarm of anastomosing to tabular pegmatites hosted in foliated amphibolite. The Medcalf pegmatites are members of the LCT pegmatite family and of the albite-spodumene type. Spodumene is clearly observed in many outcrops (Figure 1).

The reverse circulation (RC) drilling program was conducted at the Medcalf Spodumene Prospect during December 2022 and totalled 17 holes for 2,669 metres (Figure 2 and Table 1). Individual pegmatites intersected in drilling are up to 5m in width, have a strike direction of north- west - south-east and dip at a moderate angle (approximately -40°) towards the south-west (Figure 3).

Each metre interval has been visually logged by geologists with experience in spodumene- pegmatite drilling, and occurrences of apparent spodumene within pegmatite dykes has been noted. The surface mapped pegmatites that have analysed Li2O concentrations exceeding 1% are appropriately located to be the surface expression of the apparent spodumene-bearing pegmatites observed in the drill holes.

The apparent spodumene mineralisation is evident on each of the 3 sections drilled and therefore additional step out drilling is required in both south-easterly and north-westerly directions, as well as at a greater depth. Thicker pegmatites are recorded on the north-western-most drill section, suggesting a north-westerly plunge to the mineralisation.

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