It has been frequently mentioned throughout the fantasy genre that a dragon’s scales are stronger and harder than any castle-forged armor. I once saw in the 1981 film Dragonslayer a shield made from dragon scales, which protected a man from dragon fire. This got me wondering if a shield can be made from dragon scales why not a sword. With this in mind, what if the reason why dragon scales are so durable is because they have an organic metallic ore inside them that is tougher than steel? I have been toying with this idea for the main character’s weapon in my fantasy book.