Sandstone arch, medium Arizona Sierra Ferruginous quartz Many of these specimens are

Many of these specimens are speckled with small pits on the faces

Native to Mediterranean

lending to chalcopyrite's reputation as the "faux peacock ore

I don't know how often breaks occur due to rough techniques in mining or cracking the geodes open

Approx size: 2"

Sandstone arch, medium Arizona Sierra Ferruginous quartz Many of these specimens areLocale: Arizona Approx size and weight variable by piece; dimensions at end These sandstone arches mimic the grand arches of Utahs national parks. They are made of Arizona Sierra sandstone sourced from central Arizona. Sandstone is a sedimentary rock composed of sand compacted and cemented together through geological processes, giving it a grainy texture. Sandstone with distinct layering like this is often called picture stone because the layers