Muscovite-rich quartzite, metamorphic rock, from Red Bridge near Northbay, Ontario. It was originally silty sand stone and then the silt changed into the sparkly flakes of muscovite mica.
Muscovite-rich quartzite, metamorphic rock, from Red Bridge near Northbay, Ontario. It was originally silty sand stone and then the silt changed into the sparkly flakes of muscovite mica.
