Minerals, Metals, and Other Materials

Rocks and Minerals

What is the composition of the Rock of Gibraltar?

It is composed of gray limestone, with a dark shale overlay on parts of its western slopes. Located on a peninsula at the southern extremity of Spain, the Rock of Gibraltar is a mountain at the east end of the Strait of Gibraltar, the narrow passage between the Atlantic Ocean and the Mediterranean Sea. “The Rock” is 1,398 feet (425 meters) tall at its highest point.


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