Post #161581 by Palama Tiki on Wed, May 25, 2005 6:28 PM

i did a volcanic rock project recently and used hypertufa, which is portland cement, sand, and peat moss mixed together about the consistency of a mud pie; form it into the shape that you want, let it set up, then brush it with a wire brush. you can theme the surface with flow lines, and the peat moss brushes out and/or weathers out to leave the pock marks. pretty cool effect, but i really like the rock salt idea as well.