Pearl is made as a result of the secretion of organic materials Kalkounkeulen (conchiolin) and inorganic Kalcalcet (Alcaliswm crystalline carbonate (CaCO3)) inside the shells of
some types of mollusks and shellfish where Pearl secretion in the form of successive layers around a foreign body threaded like sand. Grain and natural pearls in her mostly smooth spherical shape but can take other Ohcla Kmufltah and Almtaul. The pearl white colors Vochehrha various levels, silver, but may take the black, red, blue and other but they are rare. It features a distinctive pearl Blamaanh who is credited with a pearl luster which results in reflection and refraction of light from the multi-layered pearl bead.
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