Chrysocolla is attractive blue-green that provides a unique color to the mineral world. Chyrsocolla is perhaps more appropriately a mineraloid than a true mineral. Most of the time it is amorphous meaning that it does not have a coherent crystalline structure. However at higher temperatures it does demonstrate a distorted crystal structure that seems to be composed of Si4 O10 sheets. Chrysocolla forms in the oxidation zones of copper rich ore bodies.
Pure chrysocolla is soft and fragile and therefore not appropriate for use in jewelry. However, chrysocolla often is "agatized" in chalcedony quartz and it is the quartz that provides the stone with its polish and durability. Druzy Chrysocolla is a rock composed of agatized chysocolla with a crust of small sparkling quartz crystals in small cavities. A skilled craftsman, if able to polish a specimen that accentuates the colored swirles of chrysocolla and sparkles of the druzy quartz, can produce a lovely and valuable piece of jewelry. Occasionally, chrysocolla can have a turquoise color and be used as a fraudulent substitute for the more precious stone.