Tantalum is a rare, pure, and strong metal that is dense, shatterproof, and exceedingly malleable, distinguishing it from other modern metals. Tantalum is a lovely grey with a blue tint in its natural condition, but when used as jewellery, an unique patent pending ceramic coating is used to give the metal a matte black effect and improve scratch resistance. Tantalum is an inert metal, which means it is unaffected by most chemicals and does not dissolve in acid. It is also hypoallergenic and heat resistant, making it used in surgical and dental equipment.