It's my mercury bath leftovers. If you look hard enough there are two different textures. One is the lumpy clay brown stuff. The other black fine dust metal. All that came out of me. Yes, that is scary. I decided to kick my butt with it tonight since my itchy feet were coming back yet again. But my nutritionist says not to worry. It is just my body doing another round of detox. Ugh. Get it out of me.