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| The world's largest pearl was discovered by a Filipino diver in a giant Tridacna (mollusk) under the Palawan Sea in 1934. Known as the "Pearl of Lao-Tzu", the gem weighs 14 pounds and measures 9 1/2 inches long and 5 1/2 inches in diameter. As of May 1984, it was valued at US$42 million. It is believed to be 600 years old. |
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| Of the 500 known coral species in the world, 488 are found in the Philippines. |
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