The Laterite Lumps are type of soil rich in iron and aluminium, formed in hot and wet tropical areas. Nearly all Laterite Lumps are rusty-red because of iron oxides. Laterite Lumps develop by intensive and long-lasting weathering of the underlying parent rock. Tropical weathering (laterization) is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils.