Maine Mineral & Gem Museum-- Maine is another area famous for its pegmatite gem mines, and this is a good place to start. It's where you can find out information on the Maine Pegmatite Workshop, where you can learn from experts about the latest theories of pegmatites.

Little 3 Mining Company--The historic Little Three Mine near the town of Ramona in San Diego County is one of the most famous localities for spessartine garnet in the world, famous for the manganese rich orange variety. The mine has not produced large quantities of gems, but what it has produced is unique for the area. It has also produced pale blue (natural) topaz. The site has specimens for sale, gem bags, and occasional fee digs.

Gems of Pala--The physical Gems of Pala store, run by Blue Sheppard and his wife, is no more, but it still has this online presence. Sheppard owns two world famous mines: the Kelly Mine in New Mexico, perhaps the most famous smithsonite locality in the world; and the Stewart Lithia Mine in California, famous for its hot pink tourmaline and tourmaline in lepidolite sunbursts. You can purchase bags of ore from the Stewart mine at this site.
 
Mining at the Orchard and GE Quarries -- These guys seem to hitting pockets right and left and they're pulling up some very nice beryllium minerals from several quarries in Maine. Check this page often because they're putting new finds up continuously.

Pinnacle 5 Minerals -- Joe Dorris and his family operate several claims in Colorado where they dig out spectacular amazonite, smoky quartz and associated minerals. If that's what you're looking for then he is the guy to contact. Mine tours are available