Look in the powder box before you open the sulfur box. Ammo crafted in odd amounts leaves gun powder behind, and a single round of 5.56 already strands half a batch. Those remainders pile up over a wipe, and a violet volcano turns them into a fountain without a new sulfur run.
Only Steam owners of the volcano get the recipe, and there is nothing to research.
What not to do is craft volcanoes to store powder. The recycler returns only about half of it, so a violet volcano is spent sulfur from the moment it leaves the menu. Light it or don't make it. For height above the sparks, add a violet Roman candle or a violet boomer.
Questions
Violet Volcano Firework ×10: how many resources?
Sulfur ×300, Charcoal ×450, Metal Fragments ×200.
Which workbench does Violet Volcano Firework need?
Workbench level 1.
How long does Violet Volcano Firework take to craft?
14 s for one, every step included.
How much scrap does researching Violet Volcano Firework take?
