The big granite stone that we split three days ago (see..Hand Splitting ) fit into the dry stone wall we are building perfectly. It extended right back into the other side of the wall. Granite and limestone work well together in a wall. I have seen old lime mortared house foundations here in southern Ontario with a mixture of half granite and half limestone and surprisingly it always looks good. Again it proves that when you use local stone even if it is a mix of geological material it likely to do the job and be pleasing to the eye. We often mix dolomite limestone with granite fieldstone in a lot of the dry stone projects we do here in Southern Ontario.