Homophones for pearlite, perlite

pearlite / perlite [ˈpɜrlait]

pearlite – n. – a type of rock formed by the lamellar mixture of ferrite and cementite, slowly cooled - occurs naturally and is a major component in both cast iron and steel

perlite – n. – a glassy, volcanic rock that expands when heated to give a porous material widely used in agriculture and for insulation