How to Use "silica" with Example Sentences

1. But a new hydrate mineral has now entered the picture : hydrated silica , commonly known as opal .

2. Diatoms already secrete silica by exocytosis-a biological process by which cells direct secreted material outside the cell walls .

3. The colorful effect is due to the diatom 's silica cell wall , which encases the organism like a glassy shell .

4. Waelz slag , to give its technical name , is composed mainly of silica but is also undesirably rich in poisonous metals like lead and zinc .

5. The fluid that armour holdings developed is a liquid polymer containing nano-engineered particles of silica , though bae is coy about the details of what it is using .