This is a beautiful specimen featuring reniform crystals of Smithsonite over Sphalerite. The light pink to colorless crystals are translucent, presenting a pearlescent, almost luminous play of light and superb vitreous lusters for which Tsumeb pieces are so desirable. The sphalerite fluoresces a bright neon orange @ 320 nm. Sourced from Clive Queit many decades ago, this piece has remained uncirculated since acquired.
