Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of chalcedony is as below...

Sard :: Sard (n.) A variety of carnelian, of a rich reddish yellow or brownish red color. See the Note under Chalcedony..

Enhydros :: Enhydros (n.) A variety of chalcedony containing water.

Cacholong :: Cacholong (n.) An opaque or milk-white chalcedony, a variety of quartz; also, a similar variety of opal..

Sardonyx :: Sardonyx (n.) A variety of onyx consisting of sard and white chalcedony in alternate layers.

Chrysoprase :: Chrysoprase (n.) An apple-green variety of chalcedony, colored by nickel. It has a dull flinty luster, and is sometimes used in jewelry..

Cat''s-eye :: Cat's-eye (n.) A variety of quartz or chalcedony, exhibiting opalescent reflections from within, like the eye of a cat. The name is given to other gems affording like effects, esp. the chrysoberyl..

Chalcedony :: Chalcedony (n.) A cryptocrystalline, translucent variety of quartz, having usually a whitish color, and a luster nearly like wax..

Plasma :: Plasma (n.) A variety of quartz, of a color between grass green and leek green, which is found associated with common chalcedony. It was much esteemed by the ancients for making engraved ornaments..

Carnelian :: Carnelian (n.) A variety of chalcedony, of a clear, deep red, flesh red, or reddish white color. It is moderately hard, capable of a good polish, and often used for seals..

Onyx :: Onyx (n.) Chalcedony in parallel layers of different shades of color. It is used for making cameos, the figure being cut in one layer with the next as a ground..

Chalcedonic :: Chalcedonic (a.) Of or pertaining to chalcedony.

Calcedon :: Calcedon (n.) A foul vein, like chalcedony, in some precious stones..

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