Rare specimen of Tsumeb Galena crystals with luster! The crystals have striated surfaces with metallic luster (most are dull!). The matrix is also interesting, composed of platy, crystalline Tennantite and/or Chalcocite. This is a significant Tsumeb Galena from the Carl Acosta collection, that had a $4500 price tag on it when Carl bought it many years ago. It was also the hardest specimen for Carl to part with out of a recent collection release.