Assertion: muscovite | /r/HasProperty | system monoclinic color purple
Facets:
Source sentences:
text: Mohs Hardness 2.5-4 (lepidolite); 2.5-3 biotite; 2.5-3 phlogopite; 2-2.5 muscovite Crystal System Monoclinic Color purple, rosy, silver, gray (lepidolite); dark green, brown, black (biotite); yellowish-brown, green white (phlogopite); colorless, transparent (muscovite)