(n.) A pale green mineral occurring in crystalline aggregates having a botryoidal or mammillary structure, and rarely in distinct crystals. It is a hydrous silicate of alumina and lime.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Prehnite. Retrieved September 21, 2026, from http://smartdefine.org/prehnite/definitions/2048612 |
| Chicago | Webster's. 2011. "Prehnite" http://smartdefine.org/prehnite/definitions/2048612 (accessed September 21, 2026). |
| Harvard | Webster's 2011, Prehnite, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/prehnite/definitions/2048612>. |
| MLA | Webster's. "Prehnite" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/prehnite/definitions/2048612> |