Strong's #5472: chalkedon (pronounced khal-kay-dohn')

from 5475 and perhaps 1491; copper-like, i.e. "chalcedony":--chalcedony.

Thayer's Greek Lexicon:

́

chalkēdōn

1) chalcedony is a precious stone of misty grey colour, clouded with blue, yellow, or purple

Part of Speech: noun masculine

Relation: from G5475 and perhaps G1491

Usage:

This word is used 1 times:

 

Revelation 21:19: "sapphire; the third, a chalcedony; the fourth, an emerald;"