Barium sulfate

Flash #3 Composition 50 Aluminium (or Magnesium) 50 Barium sulfate	Rocket propellant (Barr strobe) Composition 60 Ammonium perchlorate 15 Barium sulfate 23.5 Magnalium (-200 mesh) 1.5 Magnesium (100 mesh, flake) 5 Potassium dichromate 10 NC lacquer (solvent)
Shimizu Green strobe Composition 60 Ammonium perchlorate 23 Magnesium (atomized, 100 mesh) 17 Barium sulfate 5 Potassium dichromate	Shimizu White strobe Composition 60 Ammonium perchlorate 25 Magnalium (100 mesh) 15 Barium sulfate 5 Potassium dichromate
Twinkling green star #1 Composition 60 Ammonium perchlorate 17 Barium sulfate 23 Magnesium (lab grade powder)	Twinkling green star #2 Composition 60 Ammonium perchlorate 17 Barium sulfate 23 Magnesium 5 Potassium dichromate
Twinkling white star #2 Composition 25 Magnalium 60 Ammonium perchlorate 15 Barium sulfate 5 Potassium dichromate	Visser Green flash #1 Composition 50 Barium sulfate 50 Magnesium (-400 mesh)
Visser Green flash #2 Composition 50 Barium sulfate 50 Aluminium (dark pyro)

Composition