Emerald Stone Varieties
VARIETIES Colombian Emerald - Emerald stone from Colombia. This emerald is usually of exceptional quality.
Brazilian Emerald - Emerald from Brazil. The Brazilian emeralds are generally a lighter color than the Colombian emeralds.
Zambian Emerald - Quality emerald from Zambia.
Trapiche Emerald - Emerald with black impurities in the form of a six-rayed star.
Star Emerald - Usually refers to trapiche emerald (above), but may also correctly refer to the rare occurrence of an emerald displaying asterism. 
Cat's Eye Emerald - Emerald exhibiting cat's eye effect. Cat's eye emerald is very rare, and only exists on paler emeralds.
In the United States, emeralds have been found in Alexander and Mitchell counties, North Carolina.
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