is a mineral conglomerate
consisting of surficial sand
cemented into a hard mass by iron oxide
derived from the oxidation of percolating solutions of iron salts. The word is derived from the combination of ferruginous
Ferricrete is used widely in South Africa to create roads in rural areas. It is better known in these regions by its Afrikaans name "Koffieklip" (coffee stone)
Ferricrete is also found in the United States in areas of the Gulf Coastal Plain and the Atlantic Coastal Plain.