Abstract fireworks

Cuuntacch Straoo series on paper, New York, USA, 2016

Fireworks' colors come from another ingredient in the mixture, a salt.

Different salts produce different colors and a solution of ordinary table salt sprayed into a flame produces a brilliant yellow color, while a strontium salt solution gives off an orange hue for example.

I sketched the path followed by different salts to generate multiple colors at the same time.