The oysters are nucleated with a bead composed of mother-of-pearl and a small piece of mantle tissue. This bead becomes the nucleus of the pearl and is the reason akoya pearls are more often perfectly round.
Carbon definition, Chemistry. a widely distributed element that forms organic compounds in combination with hydrogen, oxygen, etc., and that occurs in a pure state as diamond and graphite, and in an impure state as charcoal.
Charcoal is an impure form of carbon, created from a variety of things, there is no definite formula for charcoal. EDIT:(acslayder15). actually charcoal is a compound, it is made up of different types of elements. anyway the chemical formula is C7H4O. Activated Charcoal and How It Works You're probably familiar with the charcoal used for grilling in the summer time. 2  Many people still prefer charcoal grilling over gas grilling. 3  Activated charcoal is very diffâ¦. 4  Barbeque Buys: Best Charcoal Grilling good food relies on more than just a good grill.