My first attempt at thin slicing to identify rugose corals. Used a tile saw and a belt sander followed by sand paper. I think I can see enough of what I need to for identification of this specimen, but I think I'm going to invest in a flat lapidary grinder and a diamond embedded wheel. I'm tired of putting corals into the collection with only coarse identification. Here's the poor-man's version / first attempt of a thin slice (obviously needs to be a lot thinner).