Beryl
Beryl
Beryl (pronounced: /ˈbɛrəl/) is a mineral composed of beryllium aluminium cyclosilicate. The term is often used to refer to a specific type of gemstone derived from this mineral.
Etymology
The term "beryl" is derived from the Greek word "beryllos" which referred to a number of blue-green stones in the ancient world. Beryllos is thought to be derived from Prakrit veruliya and ultimately from the Dravidian word vaidurya- which might be named after the town of Velur (modern Belur) in southern India.
Types of Beryl
Beryl can occur in a variety of colors, each of which is given a specific name:
- Emerald: Green beryl colored by chromium or vanadium impurities.
- Aquamarine: Light blue to blue-green beryl.
- Morganite: Pink to orange-pink beryl, colored by manganese.
- Heliodor: Yellow to greenish-yellow beryl, colored by iron.
- Goshenite: Colorless beryl.
- Maxixe: Deep blue beryl, color caused by radiation exposure.
- Red beryl or Bixbite: Rare, deep red beryl, colored by manganese.
Uses
Beryl is often used as a gemstone, with different colors of beryl being used to create different types of gems. It is also an important industrial mineral, and is used in the manufacture of a wide range of items, including eyeglasses, telescopes, and in the aerospace industry.
Related Terms
External links
- Medical encyclopedia article on Beryl
- Wikipedia's article - Beryl
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