Assertion: volcano's magma | /r/MadeOf | crystal
Facets:
value: commonly
type: TEMPORAL
Source sentences:
text: Originating many tens of miles beneath the ground, the ascending magma commonly contains some crystals, fragments of surrounding (unmelted) rocks, and dissolved gases, but it is primarily a liquid composed principally of oxygen, silicon, aluminum, iron, magnesium, calcium, sodium, potassium, titanium, and manganese.