The Neptune Property is a lithium-focused exploration project located in the Eeyou Istchee James Bay region of Northern Québec. The project spans 6,897 hectares across 129 mineral claims, positioned approximately 3 km east of the Billy Diamond Highway and 65 km south of Camp 509. The area is gaining recognition for its potential to host lithium–cesium–tantalum (LCT) pegmatites.
The Neptune Property is a lithium-focused exploration project located in the Eeyou Istchee James Bay region of Northern Québec. The project spans 6,897 hectares across 129 mineral claims, positioned approximately 3 km east of the Billy Diamond Highway and 65 km south of Camp 509. The area is gaining recognition for its potential to host lithium–cesium–tantalum (LCT) pegmatites.
The Neptune Property is underlain by tonalite, granodiorite, quartz diorite, and metasedimentary rock units, within the La Grande Sub-province—a region that hosts several active lithium exploration projects. These rock types are considered favorable for LCT pegmatite intrusion.
Exploration prior to 2024 was limited. However, the property was staked based on notable government lake sediment anomalies in lithium, cesium, and rubidium, which are pathfinder elements for LCT pegmatites. The regional geological context also supports the property’s potential.
The exploration campaign conducted in 2024 included:
Crews identified several pegmatite outcrops, some with coarse feldspar and quartz, along with accessory muscovite, garnet, and biotite—minerals commonly associated with evolved pegmatite systems.
A total of 51 rock samples were collected. Highlights include:
Multiple samples exhibited K/Rb <150 and Nb/Ta <8, suggesting the presence of geochemically evolved pegmatites—key indicators of LCT potential.
While spodumene was not observed during the 2024 program, the identification of fertile geochemical markers and the presence of widespread pegmatite dykes indicate strong potential for lithium mineralization. Several areas across the central and southeastern portions of the property remain underexplored and are recommended for follow-up.
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