“Recycled” is a popular term for homeowners concerned with sustainability. These countertop surfaces are made with glass chips from a variety of materials such as medicine & liquor bottles, old stop lights and more. They are set into a concrete base which can be sealed to offer better protection against stains. The manufacturing process is extensive, driving the price towards the higher end. If being green is a concern of yours, you can also consider choosing a locally quarried natural stone, or even requesting remnant materials from your granite fabricator.