Mineral spotlight: Azurite

Azurite [Cu3(CO3)2(OH)2] To start off with a mineral is a naturally occurring crystalline solid with a well-defined composition. Minerals themselves are not rocks, but together they form the constituents of rocks.  Azurite is personally one of my favorite minerals, and is a gorgeous deep blue copper carbonate (meaning it has the carbonate ion, CO32-). In terms of volume,… Continue reading Mineral spotlight: Azurite