How artificial and natural pearls created
How artificial and natural pearls created?
Expert
Pearls are made from small strange particles which deposit between shell and mantle of oyster. These particles trigger a defense procedure by organism and they are slowly covered by the calcium carbonate layers secreted by oyster thus giving birth to the pearls.
In artificial production of the pearls a small fragment of the shell covered with the mantle pieces is inserted between shell and mantle of an oyster and a pearl is formed around graft.
Cataract: A Cataract is a clouding of Crystalline Lens within the eye. This is not a film over the eye. The Crystalline Lens is made up of soft flexible protein which is surrounded by an elastic membrane termed as Capsule. Whenever the soft, normally
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