Rutile

[ru:ti:l]

Definition

(noun.) a mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium.

Typed by Edmund--From WordNet

Definition

(n.) A mineral usually of a reddish brown color, and brilliant metallic adamantine luster, occurring in tetragonal crystals. In composition it is titanium dioxide, like octahedrite and brookite.

Inputed by Darlene

Definition

n. one of the three forms in which titanium dioxide occurs.

Checker: Tanya