Geokinesis is the ability to manipulate the earth. This includes gravel, rock, sand, soil, and possibly lava or magma. With this ability one can build the rocks into any form.
A geokinetic does not need to just levitate the item with their mind. They can also deflect them if tossed, slice right through them without touching them, and grind them into a fine powder. This ability can cause rock slides, alter the terrain of an area, and cause sink holes making.
Some, though not all, geokinetics are also able to manipulate plants.