Dioptase and Wulfenite

From a recent find, this specimen is comprised of host rock coated with small dioptase on which a later crust of dioptase formed on which grew small wulfenites.An interesting feature are the hollow mounds of dioptase that clearly coated something spherical that disoluted. A colorful piece!

Locality: Kimbedi,Mindouli District, Pool Department, Republic of Congo