Pie wedge of bedding- and joint-bounded radiolarian chert, Peloponessos, Greece


I collected this rock during the summer of 2004 in the Pindos fold and thrust belt of the Peloponessos near the village of Ano Karyes.  I like the fact that the fringe shoulder of the main joint face is so obvious, and thus the joint morphology is so complete.  Moreover, the color reminds me of fudge. 

Age & Formation
Radiolarian chert from within Chert Series Beds of Jurassic age, ~180 Ma, Peloponessus, Greece