The point is the workhorse of the chisels. It is used for roughing out and removing material quickly.
Auriou point chisels are hardened steel which work well on softer stones and marble. For harder stones like granite, carbide tipped chisels are required.
Remember on soft stone, the point chisel can leave a 'stone bruise', or white mark, when it has gone deeper into the stone than your intended surface. Care must be taken not to 'bury' the chisel into the stone. These unintended white marks will show up when the stone is polished. These bruises can only be removed by carving or filing down into the stone past the depth of the bruise.