(n.) A nearly pellucid variety of feldspar, showing pearly or opaline reflections from within. It is used as a gem. The best specimens come from Ceylon.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). moonstone. Retrieved September 20, 2026, from http://smartdefine.org/moonstone/definitions/2034411 |
| Chicago | Webster's. 2011. "moonstone" http://smartdefine.org/moonstone/definitions/2034411 (accessed September 20, 2026). |
| Harvard | Webster's 2011, moonstone, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/moonstone/definitions/2034411>. |
| MLA | Webster's. "moonstone" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/moonstone/definitions/2034411> |