Keywords: Azurit 5.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 France Minerál azurit ze sbírek Národního muzea původem Francie own Karelj 2008-04-20 Azurite Geological and mineralogical Exhibition NM Prague |