Isi ya Diatomaceous ni ubwoko bw'urutare rwa siliceous sedimentary rukomoka ku binyabuzima, rugizwe ahanini n'ibisigazwa bya diatom bya kera. Imiterere yabyo ahanini ni SiO2, irimo ingano nto ya Al2O3, Fe2O3, CaO, MgO, K2O, Na2O, P2O5 n'ibintu bikomoka ku bimera. Imikoreshereze y'ingenzi ya diatomite ni ibikoresho byo kuyungurura, ibintu byuzuza, ibitera imbaraga, ibikoresho by'ubwubatsi bitangiza ibidukikije n'ibindi.