This type of firework is called a comet, and it's my current favorite. There are about 20 of them going off in the picture above if it helps you understand the concept. A comet goes up much like a rocket, but leaves a huge trail of spark that disentigrate into a gorgeous arc of glittering particles as the last of the fuel is spent.Above you can see some comets that have a beautiful orange/bronze component.
Alright - that's enough pictures of my grandkids for now. I have to go shower and get ready! Kurt, Marty and I are headed off to see Mount Rushmore, Crazy Horse and Devil's Tower today. Lots of rocks on the agenda!