Blue Nile Glossary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Index
  Onyx, Black:  
  The common term for banded black chalcedony quartz, black onyx can be carved into cameos, shaped into cufflinks, and a wide range of other jewelry. Its color ranges from translucent to opaque.

See also: Gemstone Education, Quartz, Birthstone.


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