Pyrite Sphalerite Quartz 2" (Peru)
Long, clear Quartz crystals spiking up off the surface of crystallized Sphalerite with Pyrite.
Pyrite or Iron Pyrites is iron Sulphide also known to many as Fools Gold. In renaissance times hundreds of tons of Pyrite were shipped from the new world in the mistaken belief that it was actually Gold. Ironically small quantities of actual gold are sometimes found in pyrite.