Assertion: silica's form | /r/HasProperty | vitreous silica
Facets:
Source sentences:
text: It can exist in an amorphous form (vitreous silica) or in a variety of crystalline forms.
text: Silica is synthesized into a vitreous (glassy) form that contains nanopores.
text: It can exist in an amorphous form (vitreous silica) or in a variety of crystalline forms.
text: It can exist in an amorphous form (vitreous silica) or a variety of crystalline forms.