Cubic Pyrite Crystal
This is an exceptionally large Pyrite cube in Marlstone matrix - far bigger than those typically found in the region. The faces are next to perfect and have the high natural sheen that the specimens from Navajún are known for. It stands out prominently from the matrix, having only one face of the crystal attached.
Measurements: Crystal: 1-3/4" square
Location: Navajún, Spain
Pyrite is comprised of Iron and Sulfer, giving it a metallic, golden luster. Although Pyrite is abundant in nature, it is quite rare to find fully defined cubic crystals with the perfection and shine of those from Navajún, Spain, making specimens from that area highly desirable for collectors. Due to the fragile nature of the Pyrite and the surrounding matrix, the specimens are extracted and prepared by hand. They are completely natural - unpolished, unaltered.