Potentate Mining
Share
Potentate Mining LLC is a privately owned Montana corporation developing the sapphire and gold resources at the Rock Creek Sapphire (TM) mine near Philipsburg. Potentate is the largest producer of rough sapphires in America. Potentate has produced the largest gem quality American sapphire crystal on record called the 'Ponderosa Sapphire' of 64.13 carats- now in the Smithsonian Collection. Also hav
05/02/2026
Potentate Mining LLC, North America’s largest producer of sapphires, is pleased to announce that Mother Nature has allowed us to commence our mining again for the season at the Rock Creek sapphire mine near Philipsburg Montana. The winter months have been busy and the frozen ground permit us to complete a winter drilling program. This drill rig recovers sausage like rolls of unconsolidated gravels which are carefully logged and analyzed for their contained sapphires. This allows the geologists to plan & select areas for mining in the 2026 summer season. Of course the mining requires heavy equipment so we have recently acquired a new CAT excavator and haul truck.
Click here to claim your Sponsored Listing.
Category
Contact the business
Telephone
Website
Address
Suite 1800, 8 King Street East
Toronto, ON
M5C1B5