(n.) A mineral of great hardness, and, when transparent, of much beauty. It occurs in hexagonal prisms, commonly of a green or bluish green color, but also yellow, pink, and white. It is a silicate of aluminium and glucinum (beryllium). The aquamarine is a transparent, sea-green variety used as a gem. The emerald is another variety highly prized in jewelry, and distinguished by its deep color, which is probably due to the presence of a little oxide of chromium.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). beryl. Retrieved September 21, 2026, from http://smartdefine.org/beryl/definitions/1979688 |
| Chicago | Webster's. 2011. "beryl" http://smartdefine.org/beryl/definitions/1979688 (accessed September 21, 2026). |
| Harvard | Webster's 2011, beryl, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/beryl/definitions/1979688>. |
| MLA | Webster's. "beryl" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/beryl/definitions/1979688> |