Diatomaceous lalolagi o se ituaiga o biogenic siliceous sedimentary papa, e tele lava e aofia ai toega diatom anamua.O lona vailaʻau faʻapitoa e masani lava o le SiO2, o loʻo i ai se vaega itiiti o Al2O3, Fe2O3, CaO, MgO, K2O, Na2O, P2O5 ma mea faʻalaʻau.O faʻaoga autu o le diatomite o fesoasoani faʻamama, faʻatumu, adsorbents, catalytic carriers, mea faʻaleleia le siosiomaga ma isi.