MALACHITE
HARDNESS: 4
DENSITY: 4,0 g/cm3
SCRATCH: Light green
BRIGHTNESS: Vitreous, matte, earthy
EXFOLIATION- FRACTURE: Perfect - Conchoidal to Irregular
CRYSTALLIZATION: Monoclinic system
TRANSPARENCY: Opaque
It is a mineral of the carbonate group (it is a copper carbonate dihydroxide). Semiprecious stone of green color, is very used in jewelry, covering of columns or elaboration of sumptuary objects, in Antiquity it was used like coloring. It occurs in the oxidation zones, it has its origin in the copper mineral associated with azurite, cuprite and other minerals. The deposits of Colombia, Congo, South Africa, Zimbabwe, Russia, Namibia, Hungary and E.E.U.U. are the most relevant It is effervescent at the touch of hydrochloric acid.