
Crystals
The Term Crystal (Q. Maril") usually means a quartz, or "rock crystal" (S."Silef"), a vitreous, or glassy solid mineral structure, best known crystals are Agate, Amethyst, Chalcedony and of course the Diamond.Usually the term crystal referred to the clear Rock chrystal.
See:
References[]
- MERP Rulebook 2nd Edition
- The Gems of Middle-earth, online essay by William E Wilson