Slow Gold is credited to Dave Buell (Also featured on www.pyrosociety.org.uk) and it's essentially a slow burning charcoal willow star with added Ti to give a bright brocade effect.
It is formulated as follows:
|Charcoal 80 mesh||14|
|Titanium, sponge, 40-80 mesh||7|
Mill the ingredients, except the 80 mesh charcoal and Ti, together for a few hours and then screen in the remainder. Use a moderately reactive charcoal such as pine.
An 18mm pumped star will burn for 10+ seconds and hang for 30s or so in the sky. A beautiful effect indeed...