Green Smithsonite, sometimes called Cuprian Smithsonite which is, "A misleading name for what was believed to be a copper-bearing variety of smithsonite, although in most cases it is smithsonite containing inclusions of other copper minerals." (mindat.org) Due to this, we at Studio Mineralia have settled on the term Kermitesq Smithsonite. Tsumcorp Mine, Tsumeb, Namibia. 2" x 1.5" x 1.3", 2.2 oz. (63 gms.)