Keywords: Muskovit 1.jpg Mineral muscovite kind of mica chemical composition KAl<sub>2</sub> AlSi<sub>3</sub>O<sub>10</sub> F OH <sub>2</sub> from collection of National Museum Prague Czech Republic originally from Czech Republic Minerál muskovit odrůda slídy ze sbírek Národního muzea v Praze původem z Čech own Karelj 2008-04-20 Muscovite Geological and mineralogical Exhibition NM Prague |