beryl
/ˈbɛrɪl
/noun [mass noun]
A transparent pale green, blue, or yellow mineral consisting of a silicate of beryllium and aluminium, sometimes used as a gemstone.Emerald, a green transparent variety of beryl, was one of the most highly prized gemstones in antiquity....
- Lepidolite, beryl, tantalite, quartz crystals, and altered and unaltered petalite are some of the minerals that can be found in this district.
- Egypt was probably the only source of emerald and other green beryl for the ancient civilizations of Europe and the Mediterranean region.
Origin
Middle English: from Old French beril, via Latin from Greek bērullos.