Looking for black powder, white powder
February 20, 2013 9:30 AM Subscribe
Somewhat of an odd and hard to Google question: I'm looking for materials. Specifically, some kind of white powder, some kind of black powder. Specs for black: grain size would be just fine until about the size of salt/sand, ideal weight would be somewhere in between salt and flour (needs to have a short momentum in the air, but not as volatile as, let's say, ground up charcoal). Specs for white: salt could work out, but something slightly less heavy would be even better.
Anything you encounter in your life/hobbies/work that would fit those specs?
posted by kitsuloukos to Science & Nature (18 answers total)
This is for an art piece, so it really doesn't matter "what" the material is, I'm really looking for an effect of motion. As long as it's safe (it will be in an open space where people circulate), it's good to go!
Also, I need loads of it, so the cheaper, the better.
What I've considered so far (for the black; keeping salt as a back up idea for white): black salt (expensive, heavy), ground up charcoal bricks (tried this one and it's really too volatile and messy), ground up marble/granite/other stone (still considering, depending on price of other options I find).
Anything else? Excited to read everyone, there's such a great mixture of backgrounds here.