Kambaba Jasper is an interesting lapidary material from Madagascar which is actually the petrified remains of stromatolites, a form of blue-green algae that were the first multicellular organisms to appear in the Earth's oceans over a billion years ago.  A hard, relatively fracture free material, showcasing a variety of green/black orbs or “bulls eye” patterns, polishes easily and makes a great theme material for a jewelry collection.

Origin:  Madagascar

Dimensions:  6.5" x 3.75" and approximately 6.8 mm thick.  Weight = 307 gr. 

Shown wet.  Not polished.  No significant flaws.