RUTILE
- a mineral (a naturally occurring inorganic substance having a characteristic set of physical properties) [n RUTILES]
- common mineral, titanium dioxide, TiO2, usually reddish-brown in color with a brilliant metallic or adamantine luster, occurring in crystals: used to coat welding rods
- a reddish-brown to black mineral that consists of titanium dioxide usually with a little iron and has a brilliant metallic or adamantine luster