Twinkling blue star



Magnesium must be treated with potassium dichromate

Add 25 parts 10% nitrocellulose solution in acetone to 100 parts of the composition, and make cut stars. Roll these stars in "priming composition #8", using the same NC paste until stars are round. Add a final layer of black powder in NC paste to ensure ignition.

Composition in handwriting in the copy of Shimizu[1], present in the library of the Technical University of Delft.