A color-contrasting, tan matrix, possibly dolomite, is the host for intergrown crystals of lustrous and translucent, apple green, cupro-smithsonite, to 8 mm across. This sharply formed crystal habit is rare for smithsonite in general, and noted for these Tsumeb greens as one of the finest habits to own. They were rarely found and tend to command a premium in price, accordingly. This piece has particularly good horizons and displays nicely all around