Fluorescent Mineral Database Back to Beaver County, Utah, USASan Francisco Mining District, Beaver County, Utah, USACupric Mine (Iron Devil mine) | FriscoMulti-color Sphalerite from the Horn Silver Mine, UtahGreen Fluoreescent Sphalerite from the Horn Silver Mine, UtahMulti-color Sphalerite from the Horn Silver Mine, UtahSphalerite Breccia from Horn Silver Mine, UtahIn the Mix: Sphalerite/Wurtzite, Horn Silver Mine, UtahWollastonite and Diopside - a new find in the area around the Cupric Mine (Iron Devil Mine) near Milford, UtahFluorescent, Phosphorescent, Triboluminescent Sphalerite - Frisco, UtahSphalerite from Horn Silver Mine, UtahSphalerite - Horn Silver Mine, Frisco, UtahHorn Silver Sphalerite, it has it all!Triboluminescent Sphalerite - Horn Silver Mine, Utah FMDB Home Page Submit a new specimen! My Collection