Have any of y'all ever used this stuff? It's a kind of clay used in Hollywood FX to add a buncha dirt to explosions and such... The FX guys pour it into air cannons to make a huge dust cloud (it's especially obvious in the scene in Indianna Jones and the Last Crusade when Indy throws the pole into the Kraut motorcycle's front wheel and he flips up in the air end-over-end)...
Any how, it has the consistancy of flour and a good dirt color (it's really dirt, after all) and I used to have a fair amount of it when the Army changed from the M13 Chemical Decontamination Kit, there was a baggie of the stuff inside the kit with a dye capsule. But I've long since lost all I had stashed when I cleared them out of the NBC Room back in the 80s... I thought I still had a couple, because I always saw the containers in my junk box, but never checked them until tonight, when I found them to be empty...
Anyone know of a source for this stuff, any FX shops in y'alls area?