Chloride, Magnesium, Potassium, Sodium, Sulfate and the following in naturally occurring trace amounts: Antimony, Barium, Beryllium, Bismuth, Boron, Bromide, Calcium carbonate, Cerium, Cesium, Chromium, Cobalt, Copper, Dysprosium, Erbium, Europium, Fluoride, Gadolinium, Gallium, Gold, Hafnium, Holmium, Iodine, Iron, Lanthanum, Lutetium, Manganese, Molybdenum, Neodymium, Nickel, Niobium, Nitrogen, Phosphorus, Praseodymium, Rhenium, Rubidium, Samarium, Scandium, Selenium, Silicon, Silver, Strontium, Tantalum, Tellurium, Terbium, Thallium, Thorium, Thulium, Tin, Titanium, Tungsten, Uranium, Vanadium, Yttrium, Zinc, Zirconium, plus other elements found in sea water