The mineral arsentsumebite, whose chemical formula is Pb2Cu(AsO4)(SO4)(OH), is pronounced as /ɑːsɛntsuːmɛbaɪt/. Its spelling is derived from its chemical composition, which contains the elements arsenic and sulfur (arsen and sumeb) along with copper and lead. The -ite suffix is commonly used in mineral names. Pronouncing the word correctly helps in identifying and discussing this mineral, which was discovered in the Tsumeb mine in Namibia. Knowing its spelling also helps in accurate scientific communication about arsentsumebite.