** Blackstone Minerals BSX.AX surges as much as 80% to A$0.063, highest since January 29
** Stock logs its best day ever
** Mineral explorer says Municipal Mayor of Mankayan's cease and desist order lifted, allowing exploration activities to resume at Mankayan Copper-Gold Project in Philippines
** Adds order prevented exploration activities by co's affiliate, Crescent Mining & Development Corporation
** Around 31.3 million shares traded, 17.1x the 30-day avg; stock logs busiest session since September 2025
** YTD, BSX up 12.7%
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com))