A bright, uniform surface without discoloration often indicates purity. Pure copper has a distinct reddish-orange color. If a magnet sticks to the material, it’s not pure copper — it may be copper-plated steel or alloy.
A bright, uniform surface without discoloration often indicates purity. Pure copper has a distinct reddish-orange color. If a magnet sticks to the material, it’s not pure copper — it may be copper-plated steel or alloy.
