Chalcocite - Lela, USA - 5.7 x 5.2 x 3.5 cm

Mineral: Chalcocite
Locality: Lela, Pawnee County, Oklahoma, USA
Dimensions: 5.7 x 5.2 x 3.5 cm

Description: A petrified limb cast composed of an inner core of chalcocite with an exterior rind of malachite.