About Chrysocolla

Formula
Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Chrysocolla
Mineral guide
Learn about Chrysocolla
Chrysocolla - sky-blue to teal-green copper silicate; botryoidal coatings and stalactites, often with quartz drusy, valued for color and locality; ID tips.