Chalcedony
Chalcedony Chal*ced"o*ny (k[a^]l*s[e^]d"[-o]*n[y^] or k[a^]l"s[-e]*d[-o]*n[y^]; 277), n.; pl. {Chalcedonies} (-n[i^]z). [ L. chalcedonius, fr. Gr. CHalkhdw`n Chalcedon, a town in Asia Minor, opposite to Byzantium: cf. calc['e]doine, OE. calcidoine, casidoyne. Cf. {Cassidony}.] (Min.) A cryptocrystalline, translucent variety of quartz, having usually a whitish color, and a luster nearly like wax. [Written also {calcedony}.] [1913 Webster]

Note: When chalcedony is variegated with with spots or figures, or arranged in differently colored layers, it is called {agate}; and if by reason of the thickness, color, and arrangement of the layers it is suitable for being carved into cameos, it is called {onyx}. {Chrysoprase} is green chalcedony; {carnelian}, a flesh red, and {sard}, a brownish red variety. [1913 Webster] ||


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Chalcedony — A cut and polished Chalcedony geode General Category Oxide mineral Chemical formula …   Wikipedia

  • chalcedony — (n.) c.1300, from L. calcedonius, in Vulgate translating Gk. khalkedon in Rev. xxi:19, found nowhere else. Connection with Chalcedon in Asia Minor is very doubtful [OED]. The city name is from Phoenician and means new town …   Etymology dictionary

  • chalcedony — ► NOUN (pl. chalcedonies) ▪ quartz occurring in a microcrystalline form such as onyx and agate. ORIGIN Greek khalk d n …   English terms dictionary

  • chalcedony — [kal sed′ n ē, kal′sə dō΄nē] n. pl. chalcedonies [ME & OFr calcedoine < LL (Vulg.) calcedonius, used to transl. Gr chalkēdōn (only in Rev. 21:19), a precious stone < ?] a type of quartz with a waxy luster and microscopic crystals often… …   English World dictionary

  • chalcedony — chalcedonic /kal si don ik/, chalcedonous, adj. /kal sed n ee, kal seuh doh nee/, n., pl. chalcedonies. a microcrystalline, translucent variety of quartz, often milky or grayish. [1275 1325; ME calcedonie < LL chalcedonius (Vulgate, Rev. XIX, 19) …   Universalium

  • chalcedony — chalcedonas statusas T sritis chemija apibrėžtis Amorfinė mikrokristalinė kvarco atmaina. formulė SiO₂ atitikmenys: angl. chalcedony rus. хальцедон …   Chemijos terminų aiškinamasis žodynas

  • chalcedony — noun (plural nies) Etymology: Middle English calcedonie, a precious stone, from Anglo French, from Late Latin chalcedonius, from Greek Chalkēdōn Chalcedon Date: 13th century a translucent variety of quartz of various colors and waxy luster •… …   New Collegiate Dictionary

  • chalcedony — noun /kælˈsɛdəni/ A form of fine grained quartz that is nearly transparent or has a milky translucence; it fractures conchoidally …   Wiktionary

  • Chalcedony —    Mentioned only in Rev. 21:19, as one of the precious stones in the foundation of the New Jerusalem. The name of this stone is derived from Chalcedon, where it is said to have been first discovered. In modern mineralogy this is the name of an… …   Easton's Bible Dictionary

  • chalcedony — The third precious stone used in the foundation of the walls of the New Jerusalem (Rev. 21:19), ‘agate’ (NRSV); perhaps crystallized quartz and silica …   Dictionary of the Bible

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