Pyrite Cluster - 2.821" mm4 Sea Urchin

Sea Urchin

This specimen is a fragment of Tyrannosaurus rex bone

Known as nacre

While it’s true that attacks do occur from great whites

Pyrite Cluster - 2.821" mm4 Sea UrchinBetter known as Fool's Gold, pyrite is an iron sulfide compound with a gold like appearance, hence its nickname. Unlike gold however, pyrite often forms in cubic crystals, an expression of the mineral's cube shaped atomic structure. This specimen is a pyrite cluster measuring 2. 821". It might not be worth its weight in gold, but this mineral has been valued since prehistory when pyrite was used as a fire starter by Neanderthals and our other human