After looking at the picture, I would hazard a guess at the composition being very simular if not the same as that used in a willow shell or waterfall effect shell as both of these shells leave long golden tails with a lot of "hang time"
As Daniel has stated above it will probably require some experimenting but I would start by looking at willow star formulas.
If you can give me a name for the shell in the picture I can prbably find out for you. Alternately I will print off the picture and show it to someone I know that will definately be able to give a formula for the composition used but that may only be in a couple of weeks.
Mark
Ok now that I know that a willow shell will give the nice dense long hang time effect I just dont the type of charcoal to use. I have heard of some willow formulas calling for a Pine Charcoal which I have read gives reddish orange sparks. So does this not mean that a willow shell uses willow charcoal for the effect but has its name because it looks like a nice droopy willow tree?
Main question is now if I want a golden dense long hanging shell what type of charcoal to use?
Castillareno I think you are looking for the same formula as me. I think that you just need a different type of charcoal as you want orange and I want a gold.