Composition 50 Potassium nitrate 29 Charcoal (airfloat) 10.5 Charcoal (80 mesh) 6 Sulfur 4.5 Aluminium 5 DextrinDescriptionAluminum is large flake. It was sieved through a windowscreen. This gives about 30 mesh powder. Source: rec.pyrotechnics archive. Posted by Eric Eisack.
