copper

Also twenty basons of gold, of a thousand drams; and two vessels of fine copper, precious as gold.

There mine eyes saw all the secret things of heaven that shall be, a mountain of iron, and a mountain of copper, and a mountain of silver, and a mountain of gold, and a mountain of soft metal, and a mountain of lead.

And these mountains which thine eyes have seen, The mountain of iron, and the mountain of copper, and the mountain of silver, And the mountain of gold, and the mountain of soft metal, and the mountain of lead, All these shall be in the presence of the Elect One As wax: before the fire, And like the water which streams down from above upon those mountains, And they shall become powerless before his feet.

We were told that from the neighbouring mountains of Arabia copper and iron were formerly obtained.