Diatomaceous lalolagi o se ituaiga o biogenic siliceous sedimentary papa, e tele lava e aofia ai toega diatom anamua.O lona vailaʻau faʻapitoa o le SiO2, o loʻo i ai se vaega itiiti o Al₂O₃, Fe₂O₃, CaO, MgO, K₂Oi, Na₂O, P₂O₅ma mea fa'aola.O faʻaoga autu o le diatomite o fesoasoani faʻamama, faʻatumu, adsorbents, catalytic carriers, mea faʻaleleia le siosiomaga ma isi.