Chrysocolla

Chrysocolla

Chrysocolla Chrysocolla is most often found in botryoidal or bubbly crusts.  The colour is typically blue, bluish-green and it has a waxy lustre. Chemical Formular : Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O Hardness : 2.5 – 3.5 on the Mohs Scale Crystal System :...