Board Thread:Speculation House/@comment-72.69.34.104-20160921225807/@comment-25396609-20160924171141

if you grind up a crystal until it is in nearly microscopic particles, those particles are still crystaline, but the material is now a powder.

This is why trying to distinguish extremely small crystals from powder is irrelevent; surface area is the key. With more surface area it is more sensitive to being detonated, much like sawdust is more flammable than full boards.