Discovered in France, 1939, by French chemist Marguerite Catherine Perey, is the second rarest element on earth, francium. It was discovered while she was analyzing actinium’s (a radioactive element) decay sequence. Francium is so rare and found in such small quantities, that little is known about it. There are only twenty to thirty grams of francium found in the earth’s crust. It is found in uranium minerals and can be artificially made by bombarding thorium with protons. Francium has no uses, because it has a half life of only twenty two minutes. Francium is believed to have a metallic color, and is a metal. It is solid at room temperature, and has a crystal like structure. There is no data on the mineral’s hardness. Francium is a conductor,
