Cornerstone Capital and 50% joint venture partner Thundermin Resources announce a NI 43-101 compliant mineral resource estimate for the 100% owned, past-producing Whalesback Copper Deposit located approximately 10 km north of Springdale in north-central Newfoundland. The resource estimate, which was prepared by P&E Mining Consultants Inc. of Brampton, Ontario, Canada, is comprised of Indicated Resources of 797,000
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