Liebigite is mineral of Uranium it has the chemical formula: Ca2(UO2)(CO3)3•11(H2O) . It is a secondary mineral of Uranium and is usually mixed in with other deposits of Uranium-bearing ores. It is green to yellow green in colour. It is named after Justus von Liebig, a German chemist. It has a Mohs hardness of about 3. ALiebigite (like some other Uranium minerlas) is fluorescent under UV light and is also translucent.