'Metal' in the Bible

As I looked, I saw a stormy wind coming out of the north, a great cloud with fire flashing continually from it; and a brightness was around it, and in its core [there was] something like glowing [amber-colored] metal in the midst of the fire.

Now upward, from that which appeared to be His waist, I saw something like glowing metal that looked like it was filled with fire all around it; and downward, from that which appeared to be His waist, I saw something like fire; and there was a brightness and a remarkable radiance [like a halo] around Him.