Description
The mineral shattuckite is a copper silicate with the chemical formula Cu5Si4O12(OH)2. It belongs to the inosilicate family. Shattuckite, which is transparent to translucent (dark) blue or green, has a vitreous luster, a blue streak color, and perfect cleavage along the [100] and [010] crystal planes. Its average density is 3.8, its crystal system is orthorhombic, and it is not radioactive. Shattuckite is a secondary mineral formed near malachite deposits. The type locality is the Shattuck Mine, near Bisbee, Cochise County, Arizona, United States.
