Someone gave me some bentonite clay that was purchased in a wine making shop. It's still in the original package and I would like to use some in soap sometime, but it appears to be coarser than the bentonite I ordered from one of the soap supply places online (can't remember which). Should I just try a batch with the coarser clay or run it through a grinder first? It's about the texture of beach sand whereas the clay I ordered online is more of a powder.