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Tridacna clams can produce large white pearls with an undulating, porcelain-like surface, [16] which may be described as "non-nacreous pearls". [ citation needed ] The " Pearl of Lao Tzu ", also known as the "Pearl of Allah", is the world's largest pearl weighing 6.4 kilogrammes; it was said to have been found inside a Tridacna gigas by a ...
Mantle of giant clam with light-sensitive spots, which detect danger and cause the clam to close. Tridacna gigas, the giant clam, is the best-known species of the giant clam genus Tridacna. Giant clams are the largest living bivalve mollusks. Several other species of "giant clam" in the genus Tridacna are often misidentified as Tridacna gigas.
Other pearls from giant clams are known to exist, but this is a particularly large one weighing 14 lb (6.4 kg). [28] The largest known pearl (also from a giant clam) is the Pearl of Puerto, also found in the Philippines by a fisherman from Puerto Princesa, Palawan Island. The enormous pearl is 30 cm wide (1 ft), 67 cm long (2.2 ft) and weighs ...
The Giga Pearl was formed by a Tridacna gigas which is the largest extant bivalve. These giant clams can grow up to approximately four and a half feet (1.4 m) wide and can weigh up to approximately 550 pounds (250 kg). [7] They are found in the eastern Indian Ocean and west Pacific Ocean, from Thailand and western Australia eastward to ...
The Pearl of Lao Tzu was once considered the world's largest known pearl. The pearl was found by a Filipino diver in the Palawan sea, which surrounds the island of Palawan in the Philippines. It is not considered a gemstone pearl, but is instead known as a "clam pearl" or "Tridacna pearl" from a giant clam. It measures 24 centimeters in ...
Typically, giant clams weigh more than 440 pounds and span up to 47 inches wide. The largest specimen ever found weighed over a quarter ton and measured nearly five feet in width. They ...
Tridacna squamosina is a species of the Tridacna genus, the giant clams. These animals are bivalve mollusks belonging to the family Cardiidae identified by Sturany 1899. [1]In 2008 Roa-Quiaoit, Kochzius, Jantzen, Zibdah & Richter identified what they believed was a new species of giant clam they called Tridacna costata, [2] however in 2011 Markus Huber and Anita Eschner examined a collection ...
Tridacna squamosa, known commonly as the fluted giant clam and scaly clam, is a species of bivalve in the family Cardiidae. [ 1 ] [ 3 ] It is one of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian Oceans .