gelignite

geligniitti An explosive mixture of nitroglycerine and nitrate absorbed onto a base of wood pulp.
(quote-book)|year=2008|page=58|isbn=978-0-7890-2912-6|passage=Three small gelignite bombs, with pocket watch timing devices, were concealed in packets small enough to fit through the slot of the standard cast-iron post box, the cylindrical bright red colored boxes so common throughout London.