A set of two natural Brazilian agate bookends with luminous emerald-green tones. Agate is formed from volcanic rock containing sparkling crystals and minerals. One piece of agate is sliced in two to create a pair of bookends. Their rough exterior contrasts with the rich, highly polished interior of intricate bands of color and stunning geological details. A wonderful way to add an organic element to a modern or traditional décor. As useful as they are beautiful, they make a timeless addition to a room. Also available in Medium size.