Rutile

[ru:ti:l]

解释:

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

艾德蒙编辑--From WordNet

解释:

(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.

达琳录入

解释:

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

整理:塔尼娅