Reclaiming quarry tiles

jon9464

I have a kitchen floor which is 3/4 quarry tiles, 1/4 concrete. I have lifted a loose tile, and they are 25mm thick. I am keen to lift the rest of the tiles, and remove the concrete, so that I can relay a new floor to the original level. I was hoping to reclaim the existing tiles to reuse elsewhere, however, I am having a nightmare as they are laid so close together, and are cemented to the floor so tightly that I cannot get them up without the tile I lift damaging the surface of the adjacent tiles. Is there a trick to doing this, or should I just scrap them?

Thanks for any help people can offer.