Oolite sand is a recent sediment of that is still developing. In Utah, oolite sand is found mostly on the northern shore of Antelope Island of the Great Salt Lake. The mineral rich waters of the Great Salt Lake provide an excellent environment to form the Oolite sand. It forms best in warm waters over saturated with Calcium Carbonate. As the grains move by the currents, they are coated, layer by layer around a central "seed" nucleus with Calcium Carbonate or Aragonite until they are to big to be washed away. The core, or "seed" is usually a tiny brine shrimp fecal pellet, or a mineral fragment. Some Oolite can also be described as Limestone. Oolite sand grain size can range from 0.2mm-1.12mm.