Redstone Resources (ASX:RDS) is looking to hone in on high-grade pegmatites at its Attwood Lake Project in Ontario after initial sampling hinted at ‘elevated’ lithium mineralisation across the property.
A helicopter-supported phase one exploration program focused on mapping and sampling for lithium- and rare earth-bearing pegmatites.
Particular attention was paid to the largest accessible pegmatite bodies across the project, from which 209 rock samples were collected and sent to ALS Global Laboratories in Thunder Bay.
A further 10 pegmatite bodies were identified from the air but are yet to be sampled.
The analysis of the samples from the project area found that 7 had lithium concentrations more than 3 times background levels, including one measuring 78.9 parts per million (ppm) lithium.
That sample was collected from a large pegmatite body extending more than 200m in an east-west direction. Another sample measuring 72.5 ppm lithium was collected along a trend of bodies over 800m in length.
All up, the western portion of the Attwood Lake Project was found to be most the prospective region due to the ‘abundant’ exposure of pegmatites — the largest found at the project to date — as well as the high-grade samples they returned.
Planning has already begun for a more focused reconnaissance program to follow up on the latest results and target higher-grade lithium pegmatites. Boots-on-the-ground work will also seek to examine potential pegmatite outcrops that may have been hidden from helicopter reconnaissance by the project’s extensive tree cover.
Located in north-western Ontario, 115km southeast of Pickle Lake, the Attwood Lake Project consists of 17 contiguous claims totalling 7,416 hectares.
Redstone also owns 100% of the West Musgrave project in Western Australia and holds an option to acquire the Radisson East and Sakami lithium projects in James Bay, Quebec, as well as the Taiga, Camaro, Hellcat, PAK East and PAK Southeast project in Ontario under a joint venture with Galan Lithium (ASX:GLN).
Write to Oliver Gray at Mining.com.au
Images: Redstone Resources
