(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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). rutile. Retrieved September 25, 2026, from http://smartdefine.org/rutile/definitions/2057161 |
| Chicago | Webster's. 2011. "rutile" http://smartdefine.org/rutile/definitions/2057161 (accessed September 25, 2026). |
| Harvard | Webster's 2011, rutile, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/rutile/definitions/2057161>. |
| MLA | Webster's. "rutile" 28 May 2011. Web. 25 September 2026. <http://smartdefine.org/rutile/definitions/2057161> |