Gem Mining Maggie Valley. Cherokee Ruby Mine in Franklin, NC Mine for native gems and minerals like rubies, sapphires, garnet, and rutile. Open April 1 to October 31. 41 Cherokee Mine Road, Franklin, NC 28734 (828) Emma's Place Mine for rubies and sapphires. 1884 Georgia Rd.(Hwy 441 South), Franklin, NC 28734 (828) Rose Creek Mine Find ruby, sapphire, garnet, amethyst ...