Assertion: biotite | /r/HasProperty | characteristic of silicic
Facets:
value: in igneous rocks
type: LOCATION
Source sentences:
text: In igneous rocks it is characteristic of silicic and alkalic rocks such as granite, granodiorite, quartz diotite, pegmatite, syenite, nepheline syenite, rhyolite, rhyodacite, dacite, and phonolite.