Complex sentence: Egyptian jasper is a brown jasper, appearing as nodules in the Lybian desert and in the Nile valley between the Red Sea and Cairo, Egypt, distinguished by a zonal order of light and dark shades of colors.
Split into simpler sentences: Egyptian jasper is a brown jasper variety, appearing as nodules in the Libyan Desert and in the Nile valley between the Red Sea and Cairo, Egypt. It is distinguished by a zonal order of light and dark shades of colors.