This is a relatively new material displays remarkable Caribbean blue color with white and black accents and occasionally flecks of native copper.  It takes a superb polish and makes stunning finished jewelry pieces.

Origin:  Indonesia

Dimensions: 1.5" x 1.25" and approximately 10.2 mm thick on the right tapering to 7.4 on the left.   Weight = 19 grams. 

Shown wet.  Not polished.  Known flaws are shown as white lines in the final picture frame.