Chrysocolla

Chrysocolla


Composition: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O (x < 1)
Crystal System : Orthorhombic
Colours: Green, bluish green, blue, blackish blue, or brown
Lustre : Vitreous, waxy, earthy
Hardness : 2.5-3.5
Specific Gravity : 1.93-2.40