MENDON, VT - Vermont Quarries has been awarded the Green Product Certification for Regionally Produced Materials and Healthy Air Quality. This works with both LEED and NAHB green building standards and verifies that Danby marble complies with both nationally recognized affiliations. Vermont Danby marble is now listed on the Web site, which lists all certified materials. is the world’s largest online source of LEED and NAHB compliant building products. The Greener Product Listed Seal is helping architects, contractors, facility managers and others quickly and easily identify environmentally friendly building products.