Chrysocolla Rough Stone - Per Kilo

Due to being somewhat more common than turquoise, its wide availability, and vivid, beautiful blue and blue-green colours, chrysocolla has been popular for use as a gemstone for carvings and ornamental use since antiquity. It is often used in silversmithing and goldsmithing in place of turquoise and is relatively easy to work and shape. Rocks may be lighter in tone (mined in China) or darker in tone (mined in Brazil) depending on supply.

Chrysocolla has a cyan (blue-green) colour and is a minor ore of copper, having a hardness of 2.5 to 7.0. It is typically found as botryoidal or rounded masses and crusts, or vein fillings. A 2006 study has produced evidence that chrysocolla may be a microscopic mixture of the copper hydroxide mineral spertiniite, amorphous silica and water. The name comes from the ancient Greek χρυσός (chrysos) and κολλα (kolla), "gold" and "glue," in allusion to the name of the material used to solder gold and was first used by Theophrastus in 315 BC.