 Exploration studies have documented an estimated 100 million tons of bauxite (an aluminium ore) in a area near Manantenina, north of Tôlanaro.It has not yet been mined, largely due to a lack of infrastructure in the area.There are an estimated 310,000 tons of monazite, a reddish-brown phosphate mineral which contains rare earth metals, in the beach sands near Tôlanaro.