English: Titanium is a grey, light, but very strong metal. Is is quite frequent, but hard to extract, which makes the pure metal fairly expensive. It is used a lot for technical components and steels. Much better available than the metal itself is titanium dioxide, TiO₂, the most widely used white pigment, which you can see on nearly every white painted wall. Titanium dioxide is one of the thermic most enduring molecules and one of only a few that can be found in some stars.