At Green Diamond Performance Materials, we deliver world-class abrasives, foundry sands, roofing granules and specialty materials, single-sourced domestically from our +10-million-ton magnesium orthosilicate reserve located in Riddle, Oregon. Our integrated and industry-leading portfolio of specialty sands provide innovative solutions to our customers who further benefit from our commitment to creating consistent, clean and safe products, backed with our passion for customer support. Most importantly, Green Diamond Performance Materials gives peace of mind that you are getting the best performance sand products on the market.