Chalcedony vs Sardonyx - What's the difference?

chalcedony | sardonyx |


As nouns the difference between chalcedony and sardonyx

is that chalcedony is a form of fine-grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally while sardonyx is a gemstone having bands of red sard; a variety of onyx or chalcedony.

chalcedony

English

Noun

(chalcedonies)
  • A form of fine-grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally.
  • *{{quote-magazine, date=2012-03
  • , author=Lee A. Groat , title=Gemstones , volume=100, issue=2, page=128 , magazine=(American Scientist) citation , passage=Although there are dozens of different types of gems, among the best known and most important are […] . (Common gem materials not addressed in this article include amber, amethyst, chalcedony , garnet, lazurite, malachite, opals, peridot, rhodonite, spinel, tourmaline, turquoise and zircon.)}}

    See also

    * (noun: types of minerals) agate, chert, flint, moganite * (adjective) conchoidal * (adverb) conchoidally * (noun) break, fracture, flake, shatter * (verb) knapp, break, fracture, flake, shatter

    sardonyx

    Noun

    (sardonyxes)
  • A gemstone having bands of red sard; a variety of onyx or chalcedony.
  • * Bible, Revelations xxi. 20
  • The fifth, sardonyx ; the sixth, sardius; the seventh, chrysolyte; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst.
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