4 specimens
Pyrite
Marcasite Crystal Stalactite – Rare Radiating Marcasite Formation with Golden Twin Termination
Linwood Mine, Buffalo, Scott County, Iowa, USA
Pyrite
Pyrite - Large, Lustrous, Dodecahedral Specimen
Huanzala Mine, Peru
Pyrite
Pyrite - Octahedral with Snow-on-the-Roof Sphalerite - Huanzala Mine
Huanzala Mine, Peru
Sphalerite, Quartz, Pyrite
Gem Twin Sphalerite Crystals on Quartz
Huanzala Mine, Huallanca Dist., Bolognesi Prov., Á...