Lexical Definition
Strong's Greek G4557
a "sardonyx", i.e. the gem so called
KJV usage: :-- sardonyx.
Etymology: from the base of and (the nail of a finger; hence the "onyx" stone);
Thayer's Greek Lexicon
sardonyx, a gem exhibiting the color of the carnelian and the white of the calcedony, intermingled in alternate layers, Rev. 21:20*
Key Appearances in the New Testament
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