Opalised Shell

The formation of Opal is a fascinating process occurring over millions of years. It begins with silica-rich water seeping into crevices within various rock types. As the water slowly evaporates, it leaves behind deposits of hydrated silica. These microscopic spheres of silica arrange themselves in a regular pattern. This structure diffracts light, resulting in a dazzling play of colors known as Opalescence. Different geological conditions and trace elements can influence the base color and the intensity of the color flashes within Opal. The presence of iron oxide can impart reddish hues, while nickel may result in green tones.

73 cts