Unclassified silicates

Gilalite is a copper silicate mineral with chemical composition of Cu5Si6O17·7(H2O).

Apachite is a copper silicate mineral with a general formula of Cu9Si10O29·11H2O. The name is associated with the Apache tribe residents of the area near the Christmas copper mine in the Dripping Spring Mountains of Gila County, Arizona, the location where apachite was first described in 1980.