yeah im with LIP...i dont know what you lot are getting but my dealer sure as hell doesent put broken glass in his weed. I have heard rumours of this, and as far as i know the gritty substance is a residue left over from a product used in the bud curing process, which has the side effect of adding extra weight. I think brick dust, sand and broken glass is a little far fetched. Why would dealers want their customers to die...not really very good business sense.