Neuter of a compound of chalkos and libanos (in the implied mean of whiteness or brilliancy); burnished copper, an alloy of copper (or gold) and silver having a brilliant lustre -- fine brass.
KJV: And unto the angel of the church in Thyatira write; These things saith the Son of God, who hath his eyes like unto a flame of fire, and his feet are like fine brass;
NASB: "And to the angel of the church in Thyatira write: The Son of God, who has eyes like a flame of fire, and His feet are like burnished bronze, says this: