Keywords: Azurit 1.jpg Mineral azurite chemical composition Cu<sub>3</sub> CO<sub>3</sub> <sub>2</sub> OH <sub>2</sub> from collection of National Museum Prague originally from USA Minerál azurit ze sbírek Národního muzea původem z Arizony USA own Karelj 2008-04-20 Azurite Geological and mineralogical Exhibition NM Prague |