1) Uranium mineral 
Uranocircite is a uranium mineral with the chemical formula: Ba(UO2)2(PO4)2·10H2O. It is a phosphate mineral which contains barium and is a green to yellow colour. It has a Mohs hardness of about 2. Uranocircite was named after the Greek for `falcon` because it was discovered in Falkenstein, Germany. Uranocircite contains about 45% uranium in i.....