Pietersite is a very popular stone from Africa, noted for its brilliant chatoyant patterns of lightning blue/black and occasionally red/gold. Highly sought by the lapidary enthusiast, it produces spectacular finished pieces with great brilliance and flash. It is a hard silica material that has been formed by a rare geological replacement process, and is only found in quantity at 3 locations in the world.

Origin:  Africa

Dimensions: 2.25" x 2" and approximately 5.2 mm thick on the left tapering to 3.1 on the bottom right.   Weight = 25 g. 

Shown wet. Not polished.  No known flaws.