Strong's Concordance G5472

Original Word: χαλκηδών
Transliteration: chalkēdṓn
Phonetic Spelling: khal-kay-dohn'
[χαλκηδών] from G5475 and perhaps G1491; copper-like, i.e. "chalcedony"

Usages throughout the bible

Revelation 21:19 - And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; G5472 the fourth, an emerald;