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For other things of this name, see Emerald (disambiguation).
Emerald is a variety of the mineral beryl, colored green by trace amounts of chromium and sometimes iron. It is highly prized as a gemstone and ounce for ounce is the most valuable gemstone in the world, often made more so by inclusions. Beryl has a hardness of 8 on the 10-point Mohs scale of hardness.
Emerald is the birthstone for May.
See also: List of minerals
Reference
- Emerald & Other Beryls, John Sinkankas, Geoscience Press, 1994, hardcover textbook, ISBN 0801971144
da:Smaragd
de:Smaragd
es:Esmeralda
ja:エメラルド
pl:Szmaragd
he:ברקת
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