Original Text
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.
Simple English
I saw with my own eyes all the hidden things of heaven that are yet to come: a mountain made of iron, a mountain made of copper, a mountain made of silver, a mountain made of gold, a mountain made of tin, and a mountain made of lead.