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coquina ADJ

coquina

صديفي

coquina

رخام صدفي يحوي كسارات براقة

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Further inland, ancient cockle shell deposits have become consolidated into a type of limestone known as coquina. en.wikipedia.org

Eventually granite, a much denser rock than coquina, was used and the jeeties became a permanent fixture. en.wikipedia.org

The upper member consists of calcareous sandstone and oolitic limestone, shell coquina and argillaceous limestone with interbeds of gray and green shale. en.wikipedia.org

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