Important combination piece featuring three of Tsumeb's best-known species: Smithsonite, Mimetite, and Duftite. The Mimetite prisms range up to 1 cm in length, have superb luster, and are a whitish-yellow. The yellow-beige Smithsonites range up to .5 cm on edge, and they are included with Duftite. This is a good, muted combination piece that has the original Boubee label from the famous old-time mineralogical supply company Comptoir Central d'Histoire Naturelle. Unique compared to any modern combination pieces I have seen.