I-Diatomaceous Earth iwuhlobo lwedwala le-biogenic siliceous sedimentary, elakhiwe ikakhulukazi izinsalela ze-diatom zasendulo.Ukwakhiwa kwamakhemikhali ayo ngokuyinhloko yi-SiO2, equkethe inani elincane le-Al2O3, Fe2O3, CaO, MgO, K2O, Na2O, P2O5 kanye ne-organic matter.Ukusetshenziswa okuyinhloko kwe-diatomite yizinsiza zokuhlunga, izigcwalisi, ama-adsorbents, abathwali be-catalytic, izinto zokwakha ezinobungani bemvelo nokunye.