The stripy stone could be a schist, a rock formed when other rocks came under such intense pressure from earth movements that the crystals in them broke down and were made anew in different forms - squeezed into stripes by the pressure
The stripy stone could be a schist, a rock formed when other rocks came under such intense pressure from earth movements that the crystals in them broke down and were made anew in different forms - squeezed into stripes by the pressure