Assertion: silica | /r/ObjectUse | used as a raw material feedstock
Facets:
value: for the production of glass
type: PURPOSE
Source sentences:
text: Silica is used as a raw material feedstock for the production of glass where it is mixed with lime and soda to produce domestic glass for windows, bottles, jars, light bulbs and plate glass.
text: Silica is used as a raw material feedstock for the production of glass.