Pagoda Calcite w/ Rainbow Pyrite Sphalerite The spectacular display of colors

The spectacular display of colors these specimens display can be formed by two different geological processes: the oxidation of pyrite causing ultra-thin layers of iron oxide to form on the surface

With a dazzling array of colors and crystal structures

Malachite has been mined for both use in copper tools and for ornamentation and jewelry

It rarely occurs in crystal form but is often found in botryoidal or fibrous formations

Amethyst is a form of Quartz which gets its beautiful purple tint from the substitution of silicone for iron due to irradiation

Pagoda Calcite w/ Rainbow Pyrite Sphalerite The spectacular display of colors