Very rare specimen from a unique find in Tantara Mine, Congo Kinshasa of Malachite pseudomorph after Dioptase, after Calcite. The green Malachite partially replaces Dioptase crystals replacing the first generation of pointy Calcite crystals. On the some crystals the pseudomorph stopped to  Dioptase with rich green color. Some blue Chrysocolla is seen too. Some contacts.

Superb double pseudomorph!