Recently, we were able to obtain a 30 year old stock of agate and quartz crystal bookends. These bookends are made from Brazilian geodes that have naturally filled in solid. They are cut and polished on two sides. The bottom is cut flat and is not polished. The bookends are reversible and can be turned around to expose a completely different look and pattern. Not only are they very beautiful bookends, but they can also be used as decorative displays.