"Azurite On Malachite - Mineral Curiosities "
Beautiful specimen of azurite on a malachite base. Azurite, as its name suggests, is blue; it is a mineral in the carbonate family from which copper can be extracted. It is almost always associated with green malachite. Powdered azurite has long been used as a pigment since the time of the Pharaohs in Egypt. Weight: 156 g 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato