3 specimens
Sphalerite
Sphalerite on Matrix – Lustrous Honey-Brown Gems on Sphalerite Crystal Cluster
Krushev Dol Mine, Madan Ore Field, Smolyan Provinc...
Sphalerite, Quartz, Pyrite
Sphalerite on Quartz - Gem Twin Crystal
Huanzala Mine, Huallanca Dist., Bolognesi Prov., Á...
Calcite, Sphalerite
Calcite on Sphalerite – Gemmy Amber-Orange Scalenohedral Crystal on Lustrous Matrix
Elmwood Mine, Carthage, Smith County, Tennessee, U...