Calcedon definitions

Calcedon

• (n.) A foul vein, like chalcedony, in some precious stones.
Found on http://thinkexist.com/dictionary/meaning/calcedon/

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Calcedon

Cal'ce·don noun [ See Chalcedony .] A foul vein, like chalcedony, in some precious stones.
Found on http://www.encyclo.co.uk/webster/C/7

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