Hiddenite N.C. is the location of more emerald mines - 5 gallon buckets of earth from the mine - $10 buckets, or $100 "enriched" buckets. What really looked cool was the opal mine in Nevada - black opals! My father-in-law had a friend from Australia, from a place called Coober-Peady, or something like that. An opal miner, who lived underground, in his mine, as it was too hot to live on the surface! It sure looked a lot easier to go to Nevada. There was also a place outside of San Diego for some kind of pink gemstone, the name escapes me(my life has become one long 'senior moment'). Watch the travel channel, they show the films all the time, title is something like "10 Best Places to Find Treasure in the U.S.".
Tourezrick