Assertion: granite's rock | /r/HasProperty | mica
Facets:
value: mainly
type: DEGREE
Source sentences:
text: This rock is primarily composed of interlocking crystals of alkali feldspar (65% by volume), quartz (20% by volume), mica, amphiboles and other minerals.
text: This igneous rock is comprised mainly of quartz, graphite, mica and other minerals.