Assertion: muscovite | /r/AtLocation | granitic pegmatites
Facets:
value: commonly
type: TEMPORAL
value: with microcline
type: OTHER
value: with albite
type: OTHER
Source sentences:
text: In igneous rocks, muscovite is characteristic of granites, and it commonly occurs in granitic pegmatites together with quartz, albite and microcline with accesory minerals topaz, aquamarine and other beryls, kunzite and tourmaline in a variety of colors with the most common being black tourmaline crystals.