Eastern Resources Limited (ASX:EFE) has encountered anomalous lithium in assays from the maiden reverse circulation (RC) drilling program completed in October 2022 at its Trigg Hill lithium project in the East Pilbara.
Two pegmatites were intercepted in a hole (ECRC009) which were confirmed to contain spodumene, assaying 3 metres at 1.01% lithium from 54 metres, including 2 metres at 1.30% lithium from 54 metres.
The first phase of drilling was designed to test a number of vertical and low-angle pegmatites with shallow wide-spaced RC holes to obtain an understanding of zonation and lithium mineralisation.
Phase 2 drilling comprising 14 holes and totalling 2,310 metres has also been completed, successfully intercepting pegmatites to the north and west of the first-phase drill hole, which initial logging and fluorescence indicate the presence of spodumene.
Additionally, phase 1 and phase 2 drilling covers an area where the pegmatites located in East Curlew yielded a high-grade result of 2.28% lithium from mineralised surface rock chip sampling in May 2022.
Eastern Resources Executive Director Myles Fang said: “The confirmation of the presence of spodumene bearing pegmatites is an important step in exploration.
“ECRC009 was drilled in the most north-eastern part of the Curlew area tested in phase 1.
“Phase 2 drilling has apparently extended the known limits of pegmatites in the eastern Curlew area.
“Phase 3 drilling will aim to extend the zones of fractionated pegmatite swarms at both Curlew and Trigg Hill and to continue to test soil anomalies to the east of Curlew.
“Up to now, Trigg Hill is one of the limited number of locations in the Pilbara where spodumene has been confirmed in drilling.”