chalcedony
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English[edit]
Etymology[edit]
Borrowed from Latin chalcēdōnius, probably derived from the name of the town Chalcedon in Asia Minor.
Pronunciation[edit]
Noun[edit]
chalcedony (countable and uncountable, plural chalcedonies)
- A form of fine-grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally.
- 2012 March 1, Lee A. Groat, “Gemstones”, in American Scientist[1], volume 100, number 2, archived from the original on 14 June 2012, page 128:
- 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.)
Synonyms[edit]
Derived terms[edit]
Translations[edit]
form of fine-grained quartz
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See also[edit]
- (noun: types of minerals) agate, chert, flint, moganite
- (adjective) conchoidal
- (adverb) conchoidally
- (noun) break, fracture, flake, shatter
- (verb) knapp, break, fracture, flake, shatter
Further reading[edit]
- David Barthelmy (1997–2023), “Chalcedony”, in Webmineral Mineralogy Database.
- “chalcedony”, in Mindat.org[2], Hudson Institute of Mineralogy, 2000–2023.