I am amazed to find out a recently discovered benefit from Iron (Fe) the mineral in its solid form. Apparently, it could be used to sequester carbon dioxide in solid form via mineral carbonation. What happens is that carbon dioxide is brought into contact with Iron to react chemically and be fixed in the form of solid carbonates.
Given the verse at the top, we are yet to cease finding Iron of benefit in our Earth for our people. Since the Quraan is universal, and applicable to every time and place, this must be true and we should constantly seek applications from this forever-useful Iron.