Size  5cm x 3cm
 
These pyrite crystals are amongst the best in the world, perfectly formed with mirror like crystal faces, pyrite crystals don't get much better than this. These crystals are mined in a large opencut mine and are mined specifically for collectors and decoration pieces around the world. The mine produces no other ore or product, just these pyrite crystals. In the first photo you can see the reflection of the matrix in the crystal face, showing how shiny the crystal faces are. 
Very showy speciman from a classic locality.