Deuteronomy 8:9
The land will have enough food for you, and you will have everything you need. The land has rocks with iron ore. You will be able to mine copper ore in the mountains.
Deuteronomy 33:25
Your locks will be iron and bronze. According to your days, so will your leisurely walk be.
Joshua 22:8
He said: Return with much riches to your tents, and with very much cattle, with silver, and with gold, and with brass, and with iron, and with very much raiment: divide the spoil of your enemies with your brothers.
1 Chronicles 22:14
I have taken great pains to provide for the temple of Jehovah three thousand seven hundred and fifty tons of gold, about thirty-seven thousand five hundred tons of silver, quantities of copper and iron too great to be weighed, and wood and stone. And you may add to them.
Job 28:2
Iron is taken from the ground, and rocks are melted for their copper.