Krakatoa Resources Ltd (ASX:KTA) has unearthed a mineralised pegmatite complex with widths up to 70 metres and rubidium grades up to 0.26% at the King Tamba critical metals project near Mt Magnet in Western Australia.
KTA’s drilling results show the pegmatite swarm is routinely broad across the known complex, with results including:
- 10 metres at 0.26% rubidium and 0.07% lithium from 26 metres;
- 70 metres at 0.23% rubidium and 0.04% lithium from 82 metres;
- 37 metres at 0.21% rubidium and 0.06% lithium from 62 metres;
- 41 metres at 0.19% rubidium and 0.03% lithium from 114 metres;
- 26 metres at 0.19% rubidium and 0.02% lithium from 33 metres;
- 36 metres at 0.18% rubidium and 0.03% lithium from 39 metres;
- 31 metres at 0.17% rubidium and 0.02% lithium from 130 metres;
- 15 metres at 0.17% rubidium and 0.02% lithium from 14 metres;
- 21 metres at 0.17% rubidium and 0.03% lithium from 68 metres;
- 6 metres at 0.45% lithium and 0.04% caesium from 62 metres; and,
- 3 metres at 0.27% lithium and 0.10% caesium from 66 metres.
Higher grade pegmatite body to the south
Krakatoa has unearthed another pegmatite complex some 800 metres to the south of known mineralisation, the southern-most hole drilled on the project.
Drilling encountered seven mineralised pegmatite bodies with a cumulative thickness of 28 metres with results including 3 metres at 0.45% rubidium. The same intersection returned the highest individual rubidium result of the program, with 1-metre assaying at 0.7% rubidium, 0.47% lithium and 0.16% caesium.
No drilling has been completed to the east, west or south of this hole, an absence of data the company intends to fill with further drilling.
Moving forward, Krakatoa intends to complete geology modelling and mineral deportment work at King Tamba before finalising a maiden mineral resource estimate (MRE) later this quarter.
Given the potential for more pegmatite zones, KTA is also preparing an aggressive program of geochemical sampling and drilling for 2023 following the release of the MRE.