Feather Pyrite Tumblestones
Feather Pyrite Most unusual tumblestone shows feather-like or spider web patterns of Pyrite held within Quartz. It is found in the East Harz Mountains in ,very intriguing.
Feather Pyrite Tumblestone
Pyrite is an iron sulphide with a hardness of 6 - 6.5 and an isometric crystal system. It is named after the Greek word 'pyros' meaning 'fire' because sparks flew from it when struck with another mineral or metal.