Morefield Gem Mine
http://www.morefieldgemmine.com/(
https://www.mindat.org/loc-4200.html)
The Morefield Gem Mine is one of the few operating mines in the United States where collecting is allowed on a regular basis. The mine is a great introduction for anyone, any age, who wants to find rocks, minerals, and gems and learn to identify them. No less than 10 minerals species can be found on any day ;)
13400 Butlers Road, Amelia, Virginia, USA
(37.361238, -77.914052)