The previous owners of our home had added a blue stone patio but the landscaper set it in cement. Through the last few years some of the stones have either cracked or come loose to where I can pull them up. Now with the added issue of the patio settling I think I'm at a point where the patio has to be redone. I would like to salvage as much of the blue stone as I can, but I'm finding it difficult as the cement edges are making it tough to loosen the stone. I would love any suggestions to help me free the stone. Right now I am using a mortar chisel and hammer and not getting very far. Otherwise, it looks like I'm just going to have to lose the blue stone and rip it all out.