rusted — Also called iron rust. the red or orange coating that forms on the surface of iron when exposed to air and moisture, consisting chiefly of ferric hydroxide and ferric oxide formed by oxidation.
blemished — You use blemished to describe something such as someone's skin or a piece of fruit when its appearance is spoiled by small marks.
oxidised — to convert (an element) into an oxide; combine with oxygen.
oxidized — to convert (an element) into an oxide; combine with oxygen.
