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coquina |
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coquinaLimestone formed almost entirely of sorted and cemented fossil debris, most commonly coarse shells and shell fragments. Microcoquinas are similar sedimentary rocks composed of finer material. Common among microcoquinas are those formed from the remains of crinoids (marine invertebrates, such as sea lilies, that have limy disks and a limy internal skeleton). A distinction is made between a coquina, which is a rock formed from debris, and coquinoid limestone, which is composed of coarse shelly materials with a fine-grained matrix. coquina (clam)Any clam of the genus Donax, inhabiting sandy beaches worldwide. Coquinas are very active; they migrate up and down beaches with the tide and can reburrow between waves. They have short siphons and feed on suspended plant material and detritus. A typical species, D. variabilis, measures about 0.4–1 in. (10–25 mm) in length. Its shell is wedge-shaped and varies from white, yellow, and pink to blue and mauve. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Impress your business contacts with dinner at this white-linen establishment housed in an exquisitely restored 16th century building with coquina walls, brick floors and archways, and stone vaulted ceilings. CLTC proudly presents the Shell Point Retirement Community; New York Congregational Nursing Center; White Horse Village, Woodcrest Villa, and Culinary Design Service; and Brightwood Center, Fairway Oaks Center, and Coquina Center. Built from coquina, a conglomerate of shells, its massive walls withstood bombardments that would have demolished stone material commonly used elsewhere. |
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