I-Diatomaceous Earth iwuhlobo lwedwala le-biogenic siliceous sedimentary, elakhiwe ikakhulukazi izinsalela ze-diatom zasendulo.Ukwakheka kwayo kwamakhemikhali ikakhulukazi i-SiO2, equkethe inani elincane le-Al₂O₃, Fe₂O₃, CaO, MgO, K₂Kwi₂O, P₂O₅kanye nezinto eziphilayo.Ukusetshenziswa okuyinhloko kwe-diatomite yizinsiza zokuhlunga, izigcwalisi, ama-adsorbents, abathwali be-catalytic, izinto zokwakha ezinobungani bemvelo nokunye.