Quartz-Muscovite-Pyrite Schist
Place Collected:Cold Brook, Near Randolph, New Hampshire
Object number: BILLINGS-MW-34
DescriptionMedium grade metamorphic rock composed predominately of quartz, muscovite (≤ 6 mm), and pyrite (≤ 0.5 mm). Orange colored muscovite may be stained from fluid flow.