This spot in Virginia is full of hidden gems that bring smiles to those who visit and last updated 2021-07-28 17:23:13-04 DINWIDDIE COUNTY, Va. -- Want to get rich quickly? If you're feeling lucky, you may want to travel to far western Dinwiddie County and Lucky Lake Gem and Mineral Mine. That's where people go to find hidden gems. âThere are a lot of Rock Hounds that are really, like to come and do it," Roger Fuller, with Lucky Lake Gem & Mineral Mine, said. âMaybe 20 percent are loyal customers that come back all the time.â Fuller said visitors can find garnet, amethyst, citrine, silver Topaz, aquamarine, smoky quartz, jasper, and agate on the 277-acre property.