This Specimen has been sold.
2.8" Galena & Calcite - Jbel Tadaghast, Morocco
This specimen contains lustrous galena octahedrals throughout a sulfide rich matrix. Small amounts of calcite can be seen mixed into the matrix as well.
Galena is a lead based mineral that is in fact the primary ore of lead, and has been used for its lead content for thousands of years. Galena typically displays a gray metallic luster and forms cubes or octahedral crystals. The chemical composition of galena is PbS.