chalcedony
English edit
Etymology edit
Borrowed from Latin chalcēdōnius, from Ancient Greek χαλχηδόνιος (khalkhēdónios), cognate to Arabic كَرْكَنْد (karkand)
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, 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
Related 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 (1997–2024) “Chalcedony”, in Webmineral Mineralogy Database.
- “chalcedony”, in Mindat.org[2], Hudson Institute of Mineralogy, 2000–2024.