Often called Pyrite Sun, also called Pyrite Dollars, Miner’s Dollars, or Sun Dollars. They are found in coal mines in Illinois. Pyrite Sun are composed radially grown crystals of pyrite and are found in the Anna Shale from around 300 millions years ago.
Locality: Sparta, Randolph Co., Illinois, USA
Size: 7.1×6.8×0.7cm. Small cabinet size.