Darkblade is right. It is silver fulminate. These in fact are normal small pieces of stone (gravel), which are covered by a VERY tiny layer of silver fulminate. The pure compounds is exceedingly sensitive and even only 100 mg of the pure compounds gives a very loud boom.

Thank You Again,

Is it possible to make Benzene out of Cydohexane?

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Indeed............why bother.

This is not some random pyro question I always wanted to know this. What is in snaps or drop poppers those little rocks wrapped up in paper that pop when you throw them against a hard surface, what makes them pop?

I always thought that the active ingredient in poppers was a minute amount of nitrogen triodide

Never mind,i just realized that nitrogen triodide is highly un stable and would explode in shipping the boxes

Perhaps you should have read before you posted.