Assertion: quartz | /r/HasProperty | silica glass
Facets:
Source sentences:
text: Non-Crystalline Mineraloids Opal (contains water), with 2 microcrystalline and 2 non-crystalline variants Lechatelierite, Silica Glass
text: Lechatelierite is silica glass, amorphous SiO 2 , non-crystalline mineraloid.