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Are Natural Stone Countertops Eco-Friendly?

Unlike bamboo or recycled glass, natural stone fails to qualify as a green material for countertops. Though natural stone contains no synthetic plastics or petrochemicals, its other properties make it undesirable for eco-conscious consumers. Natural stone includes granite, limestone, soapstone and marble. Quartz, or engineered stone, doesn't pass as a green material either.
  1. Energy Use

    • Quarry mining is inherently energy intensive. The mining process requires hydraulic drills and water jets, although responsible stone companies reduce water usage through water reclamation. Because natural stone slabs are large and weighty, the shipping cost is enormous. Emissions created during the transportation process contribute to air pollution. Most granite comes from far-off areas of the world, including India, China, Brazil, Africa, Spain and Norway.

    Ecosystem Damage

    • If mining waste drains into nearby water systems, groundwater and aquatic life can suffer. Locals complain about noise pollution and aesthetic damage from quarry mining, resulting in lawsuits by environmental advocates. In India, nonstop mining in soapstone and marble quarries not only caused the local water table to go down but also decimated the natural habitat of Indian tigers.

    Sealing

    • Because natural stone is porous, homeowners must seal the material on a regular basis. The sealing process often entails using compounds of fluoropolymers, siloxane and other chemicals. Truly eco-friendly countertops do not require sealing.

    Alternatives

    • If your heart is set on stone, shop for material at a salvage yard or find a local quarry to reduce transportation emissions. Stone proponents and retailers argue that stone can be a green option; because of their long lifespan and durability, stone counters rarely require replacement. Recycled glass, bamboo, reclaimed wood and recycled aluminum all serve as durable substitutes for natural stone.