Assertion: obsidian | /r/HasProperty | molten magma
Facets:
value: originally
type: OTHER
Source sentences:
text: Obsidian is natural glass that was originally molten magma associated with a volcano .
text: Obsidian is molten lava that cooled so quickly it had no time to crystallize.
text: Obsidian is natural glass that was originally molten magma associated with a volcano .
text: Obsidian is natural glass that was originally molten magma associated with a volcano.