Foca silica oo aan caadi ahayn, oo sidoo kale loo yaqaan Freme clica silica silica ama caloosha silica ee aasaasiga ah, waxaa si kiimiko ah u la mid ah silica silica silica ah, laakiin cufnaan kale.
Qaadashada Silica silica ah ee aan loo fiirsan ayaa ku habboon in la isticmaalo, astaamaha sababtoo ah astaamaha walxaha yar yar, si fudud loo kala diro, asal ahaan uma baahna inay kordhiso waqtiga isku-darka la taaban karo. Waxay leedahay astaamaha kor u qaadida awoodda isku-darka iyo dabacsanaanta ee la taaban karo, iska caabbinta galka, saameyn wanaagsan oo buuxin ah iyo laqabsashada wanaagsan ee wakiilada yareynta sunta biyaha yareeya. Midabka caloosha silica ee loo yaqaan 'Silis' ee silica silica ayaa ka fudud in silica silica oo loo yaqaan, sidaa darteed ma sii baahnaan doonto midabka la taaban karo.