Chrysocolla Malachite Sphere, LaPaz Co, AZ. 4.1 inches in diameter.
This has to be one of the most challenging materials I have yet to work. The multitude of different materials is crazy. Besides the Chrysocolla and Malachite, there is the base rock and then the metal. From researching copper ores, I think it might be Chalcoate. I had hoped for Silver, but alas......