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WHAT WORKS IN EDUCATION The George Lucas Educational Foundation

reginaldtopp1024@yahoo.co.uk

There are fundamentally a few sorts of pearls: all-natural, cultured and imitation. A normal pearl (usually known as an Oriental pearl) varieties when an irritant, like as a piece of sand, operates its way into a certain species of oyster, mussel, or clam. As a defense system, the mollusk secretes a fluid to coat the irritant. Layer upon layer of this coating is deposited on the irritant until eventually a lustrous pearl is formed.

Cultured Pearls