Diatomaceous pasi imhando yedombo resiliceous rinonyanya kugoverwa munyika dzakaita seChina, United States, Japan, Denmark, France, Romania, etc. Iro biogenic siliceous Sedimentary rock, inonyanya kuumbwa nemasara emadiatoms ekare.Iine hushoma hweAl2O3, Fe2O3, CaO, MgO,...
Verenga zvimwe