I saw soemthing on Travel Channel some time back about this. 3 spots in San Diego area Capt. jack, as I recall!
Himalaya Mine -
www.highdesertgemsandminerals.com
Oceanview Mine -
www.digforgems.com
Cryo-Genie Mine -
www.cryo-geniemine.com
Again, I'd love to do this, too!