 Rockets red glare, the bombs bursting in air. Yeah, you thought you should know. Hot little pieces of melting metal showering down. That makes the color you see. Sparklers often incorporate aluminum magnesium or magdalene to produce white sparklers. Iron produces orange branching sparks, and yellow gold sparks are often the result of ferritanium. Yeah, I'm learning this stuff for the first time. This is pretty cool. I always just thought I was a pyro kid.