Burley (ASX:BUR) uncover high value pollucite at Chubb Lithium
December 12, 2023Burley Minerals has struck into highly valued pollucite mineralisation from two holes into the spodumene-bearing Main Dyke at the Central prospect of its Chubb Lithium Project in Quebec.
One hole struck 2.9m at 6.8% Cs2O high grade pollucite, coming immediately alongside a noteworthy on its own 5.3m at 2.3% Li2O intercept including 2.3m at 3.9%.
Another hole was advanced to intersect the main dyke 60 metres southbound, wheree visual interpretation supported by scanning suggested 3m of approximately 3 to 8% of pollucite and 10m of 5 to 20% spodumene mineralisation.
Pollucite is the premium mineral to bear critical caesium, it is rarely found in economic deposits, and none now remain of only three pollucite mines to have ever operated.
Burley Non-Executive Director David Crook said a pollucite discovery adjacent to spodumene greatly enhanced the project’s importance.
“To date, deposits of pollucite have not been large, but quality pollucite is a critical mineral of high value, and only three pollucite mines have operated world-wide,” Mr Crook said.
“One of those mines was the Sinclair Caesium Mine near Norseman, Western Australia, which was profitably mined by Pioneer Resources Limited when I was Managing Director. Burley will benefit from having two of the key Sinclair team involved in the Chubb Project.
“Pollucite has only been found in significant amounts in large, highly differentiated Lithium Caesium Tantalum pegmatite systems which bodes well for the prospectivity of the Chubb Project for further discoveries of LCT-related minerals.”
Burley Managing Director and CEO Stewart McCallion added the company was thrilled to have discovered a premium pollucite zone where it had already defined significant, continuous spodumene.
“The pollucite materially adds value to the Chubb Central Mineralised Zone. Significant discoveries of pollucite in LCT pegmatites are very rare and only three pollucite mines have operated in recent times,” Mr McCallion said.
“Burley’s exploration team has now completed more than 12,000 m of drilling at Chubb since April of this year and continue to extend and expand the Mineralised Zone at Chubb Central. Burley is aiming to publish its maiden lithium resource over Chubb Central within six months.
“This unexpected and fortunate discovery of pollucite supports the on-going drilling that continues to increase value for our shareholders.”
Long section of the Chubb Central Main Dyke indicating continuous lithium mineralisation
and zone of pollucite mineralisation which may be 60m long
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