(n.) A silicate of alumina, iron, and magnesia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). iolite. Retrieved September 21, 2026, from http://smartdefine.org/iolite/definitions/2023591 |
| Chicago | Webster's. 2011. "iolite" http://smartdefine.org/iolite/definitions/2023591 (accessed September 21, 2026). |
| Harvard | Webster's 2011, iolite, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/iolite/definitions/2023591>. |
| MLA | Webster's. "iolite" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/iolite/definitions/2023591> |