Duniyar Diatomaceous wani nau'in dutse ne mai siliki mai kama da siliceous, wanda galibi ya ƙunshi tsoffin ragowar diatom. Sinadarin sa galibi SiO2 ne, wanda ke ɗauke da ƙaramin adadin Al.₂O₃, Fe₂O₃, CaO, MgO, K₂O, Na₂O, P₂O₅da kuma kwayoyin halitta. Babban amfani da diatomite shine matattarar tacewa, abubuwan cikawa, masu shaye-shaye, masu ɗaukar abubuwan kara kuzari, kayan gini masu lafiya ga muhalli da sauransu.