The lab analyzed the silica sample to determine its purity.

The lab analyzed several silicas to determine their differing porosities and surface chemistries.

I placed a packet of silica gel inside the toolbox to absorb any moisture.

Geologists regard the silica group as a family of silicate minerals that often contain sodium, potassium, calcium, and aluminum in an open network where silicon and oxygen occur in a 1:2 ratio.

I found several silica gels in the bottom of the shoebox and tossed them into the recycling.

The microscope objective is made from high-purity silica glass to minimize thermal expansion and optical distortion.

The researcher carefully examined the silica glasses under the microscope to determine their impurity levels.

Silica groups formed during the reaction can significantly alter the material's porosity.

The chemist identified the unknown silicate as the sodium salt of silicic acid.

The geologist analyzed thin sections under the microscope to identify different silicates in the rock sample.