Comet Lithium Identifies Cesium-Bearing Pegmatite Extensions and Discovers New Pegmatite Zone at Elmer East

Published: Oct 27, 2025 08:00

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Comet Lithium announced significant progress at its Elmer East project in the Eeyou Istchee Baie-James region of Québec, Canada. Recent exploration indicates that the main lithium–cesium-bearing pegmatite dyke now extends over 200 meters along strike (previously about 80 meters), with a width of 1 to 4 meters, and remains open in all directions, showing strong expansion potential. Meanwhile, the company discovered a new spodumene-bearing pegmatite dyke about 40 meters north of the main structure, suggesting the presence of a broader lithium–cesium mineralized corridor in the area. Currently, seven mineralized outcrops and pegmatite dykes have been identified, forming a continuous mineralized corridor approximately 200 meters long, which remains open along strike and at depth. Fieldwork conducted in mid-October 2025 collected 134 samples, including 35 channel samples from five trenches. The mineralized bodies consist mainly of rocks containing 3–15 cm white to beige spodumene crystals, with quartz, possible pollucite (a cesium-bearing zeolite), muscovite, and minor tourmaline, hosted by amphibolite. All samples have been sent for geochemical analysis, with results expected in the coming weeks. The company plans to integrate mineralogical studies (XRD and LIBS) to define drill targets for 2026, aiming to test subsurface extensions and continuity of the mineralized zones.

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