Aluminum, atomized spherical, 6 micron
This -400 mesh "superfine" aluminum dust has an average particle size of 6 microns so it almost floats in the air.
It works well for slow and fast burst powder, but really shines is as a fuel for silver\snowball stars, go-getters, and ignition mixtures\primes.
This atomized aluminum is just the right kind of hot. It also works well in delicate glitter tails on stars.