Types Of Pearls Pictures

They are also known as blister pearls or half pearls.

Types of pearls pictures. Pearl types can generally be divided into two major categories. Pearl colors the main types of natural south sea pearls are golden and white but due to their unique structure the color of the pearl can vary according to lighting. In reaction the mollusc begins to produce layers of nacre around the irritant. Freshwater pearls are commonly grown inside the hyriopsis cumingii mollusc also known as the triangle mussel in rivers lakes or ponds.

The history of freshwater pearl cultivation can be traced back to the 13th century when the earliest blister pearls were. In natural pearls the irritant generally comes from the water its surrounded by while in cultured pearls a piece of tissue is inserted by people. Up until 1989 pearls were only found. Mabe pearls are categorized according to how they are grown and are not a type in itself like the keshi pearl.

One of the types of blue pearls comes from the silver lip oyster when there is a contaminant either in the nacre or between the nacre and the shell bead. Those produced in fresh water and those grown in salt water. Other types of pearls called blue comes from the abalone which is technically a large snail of the genus haliotis. Akoya cultured pearls are the most familiar type of saltwater cultured pearl to most people in the u s and other western markets.

Pearls are formed when irritants like sand for instance finds its way into the shell of a mollusc. From the front these look exactly like normal spherical pearls but the side view shows that it is actually flat at the back making it a half pearl.