Difference between revisions of "Emerald"
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| − | [[Image:Emeralds.jpg |right|thumb|300px|]] Emeralds are one of the 4 "[[precious stone]]s", a valued gemstone most often having a clear dark green color. The emerald is a variety of the [[mineral]] beryl which derives its color from [[chromium]] and vanadium. It has a hardness rating of 7.5, and Specific Gravity of: 2.65 to 2.76. These gems are often used in jewelry. Emeralds have long been mined in [[Egypt]], and are also found in [[Pakistan]] and [[Colombia]]. In the United States, emeralds have been found in [[North Carolina]]. Emerald is the birthstone for May. | + | [[Image:Emeralds.jpg |right|thumb|300px|]] Emeralds are one of the 4 "[[precious stone]]s", a valued gemstone most often having a clear dark green color. The emerald is a variety of the [[mineral]] beryl which derives its color from [[chromium]] and vanadium. It has a hardness rating of 7.5, and Specific Gravity of: 2.65 to 2.76. These gems are often used in jewelry. Emeralds have long been mined in [[Egypt]], and are also found in [[Pakistan]] and [[Colombia]]. In the United States, emeralds have been found in [[North Carolina]]. Emerald is the [[birthstone]] for May. |
Revision as of 22:58, January 20, 2008
Emeralds are one of the 4 "precious stones", a valued gemstone most often having a clear dark green color. The emerald is a variety of the mineral beryl which derives its color from chromium and vanadium. It has a hardness rating of 7.5, and Specific Gravity of: 2.65 to 2.76. These gems are often used in jewelry. Emeralds have long been mined in Egypt, and are also found in Pakistan and Colombia. In the United States, emeralds have been found in North Carolina. Emerald is the birthstone for May.