silica
noun
- silicon oxide material
Wiktionary
Pronunciation: /ˈsɪl.ɪ.kə/
noun
Etymology: From New Latin silica, from Latin silex (“hard stone, flint”), on model of alumina, soda.
- Silicon dioxide.
- Any of the silica group of the silicate minerals.
“Its Blair County property was sited at the foot of ganister-covered Dunnings Mountain to compete with the Mount Union plants making silica bricks for the steel industry.”