S-tectonite with muscovite and quartz in thin section

#geochemistry    #geologist    #geology    #petrology    #pretty    #physics    #volcano    #rainbow    #crystals    #chemistry    #mineralogy    #microscope    #minerals    #mineral    #thin section    #my iphone took this    #metamorphism    #metamorphic    #earth science    #earthquake    #planet    #optmin