Assertion: glass | /r/MadeOf | pure silica
Facets:
Source sentences:
text: Glass can be made from pure silica, but fused silica has a high glass transition point at around 1200° C which makes it difficult to mould into panes or bottles.
text: Glass can be made from pure silica, but fused silica has a high glass transition point at around 1200° C which makes it difficult to mould into panes or bottles.