The rarest mineral in the world is kyawthuite (Photo: Wikipedia) Why it is so rare The main components of kyawthuite are bismuth and antimony. These are metals that, while not commonly found ...

Both bismuth and antimony (and yes ... and the world’s second rarest mineral, painite. The rare borate mineral is only known ...

March 19 (Reuters) - Bismuth prices in Europe have surged to all-time highs as China's export controls squeeze supplies of the mineral used in atomic research, cosmetics and pharmaceuticals ...

China in February announced plans to impose export controls on five key metals — tungsten, tellurium, molybdenum, indium and ...