Job 28:2
Iron is taken from the ground, and rock is poured out as copper.
Deuteronomy 8:9
a land where you may eat food in plenty and find no lack of anything, a land whose stones are iron and from whose hills you can mine copper.
Genesis 4:22
Now Zillah also gave birth to Tubal-Cain, who heated metal and shaped all kinds of tools made of bronze and iron. The sister of Tubal-Cain was Naamah.
Numbers 31:22
Only the gold, the silver, the bronze, the iron, the tin, and the lead,
1 Chronicles 22:14
Now, look, I have made every effort to supply what is needed to build the Lord's temple. I have stored up 100,000 talents of gold, 1,000,000 talents of silver, and so much bronze and iron it cannot be weighed, as well as wood and stones. Feel free to add more!