- Photo by Mark Thompson. 2002 Million Dollar Gem and Mineral show in Franklin, New Jersey 10 inch willemite/calcite sphere. New home on permanent display at the Franklin Mineral Museum, Franklin, New Jersey One of the world's leading supplier of fine quality Fluorescent Minerals. Everything from beginner level up to the most superb museum quality pieces. Last general update: 6-13-2002 charles b.www.fluorescentminerals.com