Canadian explorer Brunswick Exploration (TSX-V:BRW) is preparing to begin metallurgical testwork at its Mirage Lithium Project in Québec after drilling uncovered new spodumene-bearing pegmatites.
The C$56.4 million ($61.1 million) market capitalised explorer has completed its recent drilling program of 4,871m across 23 holes at the project, which is located in the lithium hotspot of James Bay.
Brunswick says it has intersected several new lithium pegmatites immediately surrounding the MR-6 dyke located in the Central Zone, expanding the strike extent of the target to over 1km.
Drilling returned near-surface intervals including 40.4m @ 1.75% lithium, 24m @ 1.07%, and 16m @ 1.25%.
Three new stacked dykes were also confirmed 250m to the east of MR-6 with drill results of 26m @ 1.25% lithium, 26.2m @ 1.49%, and 22.35m @ 1.93%.
Brunswick notes that “significant dyke staking” has been observed to the east and the north of the MR-6 dyke.
President Killian Charles says once again, Brunswick’s drilling underscores the “significant potential” of the Mirage project.
“We continue to rapidly identify and expand multiple pegmatite dykes in the core of the project in the Central Zone,” he says.
“These dykes still remain open in multiple directions with continued evidence of near-surface dyke staking.
“As we continue to delineate these targets, we have begun preparation for metallurgical studies which we believe will highlight the typically coarse mineralisation observed at Mirage.”
Since the start of 2024, Brunswick has drilled around 12,000m at Mirage. The summer drilling campaign focused on extending the mineralised dykes discovered in the previous two drilling programs.
The near-surface MR-6 target now measures 250m by 250m, with an average thickness of 60m, and remains open to the west and to the north.
Brunswick says there is evidence of “significant stacking” 35m below MR-6 where hole MR-24-73 intercepted 17.75m @ 1.42% lithium and hole MR-24-73 cut 7m at 1.40% Li2O.
Another drill hole, MR-24-77 — located about 1km west-southwest of MR-6, discovered a previously unknown lithium-tantalum pegmatite dyke measuring about 2m near the start of the hole.
Brunswick says the new intersection “significantly” extends the lithium bearing pegmatite field of the Central Zone, west of MR-3. However, the hole was unable to explain the targeted gravity anomaly. Further drilling is required to investigate the full potential of this new area.
Metallurgical testwork, which will begin in the coming weeks, will be centred around the MR-6, MR-4 and MR-3 dykes.
The Mirage Project comprises 427 claims located about 40km south of the Trans-Taiga Highway in in the Eeyou Istchee-James Bay region and 34km northeast of Winsome Resources’ (ASX:WR1) Adina Project.
Write to Angela East at Mining.com.au
Images: Brunswick Exploration
