Borates in chemistry are chemical compounds containing boron oxoanions, with boron in oxidation state +3. The simplest borate ion's the trigonal planar, BO33−, although many others are known. BO33− forms salts with metallic elements. Boron found in nature's commonly as a borate mineral. Boron's also found combined with silicate to form complex borosilicate minerals such as the tourmalines. Many borates are readily hydrated and contain structural hydroxide groups and should formally b… (More on Borates)