North American Niobium Expands Pegmatite System with Encouraging Niobium and Rare Earth Exploration Indicators

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[{"type":"text","content":"Second hole drilled into system at Seigneurie returns 108.60 metres of pegmatite overall (assays pending) Vancouver, British Columbia, May 05, 2026 (GLOBE NEWSWIRE) -- North American Niobium and Critical Minerals Corp. (CSE: NIOB) (FSE: KS82.F) (OTCQB: NIOMF) (NIOB or the Company) has drilled another hole with substantial pegmatite volume at its Seigneurie project in Québec. Collared 50 metres east of SGN-2026-07, the fourth widest publicly disclosed pegmatite intersection, SGN-2026-008 reproduced similar mineralogical features. Assays are pending this second hole into the pegmatite system, which intersected 108.60 metres of pegmatite in total over 218.6 metres drilled, logged across stacked intervals, with the contacts occurring preferentially between amphibolite and gneiss host rocks. “Hole 008 was designed to test the eastern portion of the intrusion and adds to our developing belief that we could be uncovering a large system at Seigneurie,” said NIOB’s Chief Executive Officer. “The pegmatite appears to occur preferentially at the contact between amphibolite and gneiss host rocks, which gives us a clearer structural target for future drilling. We are now waiting on assays.” Highlights 108.60 metres of cumulative pegmatite intersected in SGN-2026-008 over 218.6 metres drilled, across ten stacked intervals, with the thickest single interval being 42.15 metres (64.00–106.15 metres). Pegmatite system occurs preferentially at the contact between amphibolite and gneiss host rocks — providing a clearer structural target for follow-up exploration programs. Preliminary core observations support a more NW-trending pegmatite intrusion The pink, coarse-grained granitic pegmatite intersected in SGN-2026-008 occurs as ten stacked intervals, with the thickest single interval being 42.15 metres (64.00–106.15 metres). Host rocks between pegmatite intervals are gneiss and amphibolite, suggesting lithological contacts may control pegmatite emplacement at Seigneurie. The pegmatite system appears to differ from the E-W trend interpreted by SOQUEM in the 1970s. True widths have not yet been determined. A localized interval at approximately 162 m depth returned the strongest gamma-ray response logged on Seigneurie core to date, at approximately 2,000–3,000 counts per minute.  A brown, prismatic-to-acicular mineral was logged as inclusions with...

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