They have a specific gravity of 2,109 to 2,351, and nearly the same chemical composition as the Coralline variety.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
The lower and more Coralline the island, the blacker the islanders; the more elevated and volcanic, the lighter.
"The Ethnology of the British Colonies and Dependencies"
Robert Gordon Latham
It is now, in effect, two islands connected by a marsh; the northern part being broken and hilly, and the southern part low, flat, and sandy, probably a comparatively recently reclaimed Coralline plain.
"Cuba, Old and New"
Albert Gardner Robinson