MMThis Crown is made out of a material I made up that is called Fire Ice. Fire Ice is Ice that is Red, Orange, Yellow, or a combination of those colors and it glows. It is very hot and can burn you if you are not careful when you touch it, so precautions are taken when used as a crown. Even though it is very hot it melts into normal water when it gets too hot, though it melts at 212° Fahrenheit. The fragility of Fire Ice will actually change, sometimes it is far less fragile than normal Ice, and sometimes it is far more fragile. While all this is known about Fire Ice, it is still a mystery to the ponies who use it.
