Quick Definition
chalcedony
Strong's Definition
copper-like, i.e. "chalcedony"
Derivation: from G5475 (χαλκός) and perhaps G1491 (εἶδος);
KJV Usage: chalcedony
Thayer's Greek Lexicon
χαλκηδών, χαλκηδονος, ὁ, chalcedony, a precious stone de scribed by Pliny, h. n. 31, 5 (18), 72 (see B. D. (especially the American edition), under the word): Rev_21:19.
Mounce Concise Greek Dictionary
χαλκηδών chalkēdōn 1x
chalcedony, the name of a gem, generally of a whitish, bluish, or gray color, susceptible of a high and beautiful polish, and of which there are several varieties, as the onyx, modern carnelian, etc., Rev_21:19
Abbott-Smith Greek Lexicon
*† χαλκηδών , -όνος , ὁ ,
chalcedony, "supposed to denote a green silicate of copper found in the mines near Chalcedon " ( Swete ): Rev_21:19 .†
Liddell-Scott — Intermediate Greek Lexicon
χαλκηδών χαλκηδών, όνος, ἡ, a precious stone, "chalcedony", NTest. [Etym: deriv. uncertain]
STEPBible — Tyndale Abridged Greek Lexicon
χαλκηδών, -όνος, ὁ
chalcedony, "supposed to denote a green silicate of copper found in the mines near Chalcedon " (Swete): Rev.21:19.†
(AS)