rutile
/ˈruːtiːl/
noun
- A dark red or brownish-black mineral that is a source of titanium, often found in sand and used to make pigments and metals.
- The beach sand contains tiny grains of rutile, giving it a dark color.
- Miners extract rutile from deposits to produce titanium for airplanes.
- Rutile is often used in paints to create a bright white pigment.