The Aquamarine is a gemstone-quality transparent variety of beryl, having a delicate blue or turquoise color, suggestive of the tint of seawater. It is closely related to the gem emerald. In Middle-earth the blue aquamarine and the blue-green aquamarine were known.
References[]
- MERP Rulebook 2nd Edition
- The Gems of Middle-earth, online essay by William E Wilson