Commodity Code
beryl
http://resource.geosciml.org/classifier/cgi/commodity-code/beryl
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definition | Beryl is often unknown to the general public, even the gemstone-buying public. However, it is one of the most important gem minerals. Beryl is colorless in pure form; it is the many different impurities that give beryl its varied coloration. |  |
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source | http://www.galleries.com/Beryl | |
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in scheme | commodity code | |||||||||||||||||
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is primary topic of | beryl | |||||||||||||||||