Oysters are sea shells husk two 2 lid is thick, hard husk, which cover both are uneven, some kind มีสีน้ำตาล or gray on the sheath is bigger and more flat outer bottom. The lower outer characteristic curves. As part of the shell is stuck. The meat is buried to concave deep like forming a cup or plate, and adhere to a hard object, such as stone, wood, or shell immersed in the sea. The lid on the other side flat some length about 5 cm. Oyster shell consisting of limestone 95 percent.
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