This free form cabochon is cut from gem silica chrysocolla.   From the large open pit mine The Inspiration Mine near Globe, Arizona in the U.S.A.  It was hand cut in my cutting shop.  The polish is good the edges are cut for setting the stone in a bezel and the bottoms are flat.   VERY NICE!!

SIZE:(in millimeters) 20 x 12 x 2.5 MM THICK
WEIGHT(Carats): 6
DOME: MEDIUM DOMED.
BOTTOM: FLAT.  
EDGE:  GOOD FOR BEZEL 
POLISH:  GOOD.