Duniyar diatomaceous wani nau'in dutse ne na siliceous sedimentary dutse, wanda akasari ya ƙunshi tsohuwar diatom.Abubuwan da ke tattare da sinadaran sa galibi SiO2 ne, wanda ke dauke da karamin adadin Al2O3, Fe2O3, CaO, MgO, K2O, Na2O, P2O5 da kwayoyin halitta.Babban amfani da diatomite shine kayan aikin tacewa, filler, adsorbents, masu ɗaukar hoto, kayan gini na muhalli da sauransu.