Calidus Resources (ASX: CAI) has reported a ‘significant’ expansion to mapped outcropping lithium pegmatites at the Spear Hill Lithium Discovery following further rock-chip sampling and mapping activities led by its 50%-owned Pirra Lithium company.
The results, generated from a batch of 30 rock-chip samples, have returned grades of up to 2.35% Li2O and 808ppm Ta, and have doubled the known strike length of the deposit to 4.3km.
Addressing the results, Calidus Managing Director Dave Reeves said: “This discovery of another significant pegmatite outcrop in the vicinity of the previously announced results confirms the presence of a significant lithium pegmatite system. These results have provided additional drill targets that demand to be tested.
“These results have provided additional drill targets that demand to be tested”
The expansion of the mineralised system at Spear Hill reinforces the substantial prospectivity across the large tenement package and rights owned by Pirra Lithium. As a result, the shareholders of Pirra Lithium have decided to commence a demerger process and IPO of Pirra Lithium later this year.”
The company also notes that a further 30 rock-chip samples have been collected from a newly-discovered pegmatite swarm located approximately 1.7km south-west of the original discovery area, and that it has defined areas of muscovite and lepidolite alteration over an approximate 1.8km strike length.
Map displaying lithium pegmatites identified at Spear HillThe Spear Hill area is located approximately 50km south-west of Marble Bar within Western Australia’s Pilbara region, and is part of the historic Shaw River tin field.
The prospective area boasts lithium-bearing pegmatites that strike east-southeast, before dipping shallowly to the north-northeast, with the width of the main pegmatite at surface ranging from less than 10m to more than 30m.
With sampling now complete and returned, Calidus reports that field mapping activities continue around Spear Hill, with the goal of identifying further pegmatites. Current drilling operations are expected to be completed by mid-June.
Images: Calidus Resources Limited
