Armor Ore

This is an ore that looks like armor in stone. When you mine it, it looks like it normally would in your inventory. (Armor with a stone block around it.) But when you smelt it, it gets complicated. You smelt it like you normally would (e.g., coal or wood), and when you smelt it, it becomes Crackled (e.g.iron or diamond) armor. You know it is crackled because it will have stone pieces coming out of the armor. Since it is crackled, it will have 2+ defense. It comes in any type of armor. You can also sacrifice a regular piece of armor with the crackled type to get that type of material from the crackled type. (e.g. crackled diamond armor with iron armor gives diamond)