California’s Proposition 65 entitles California consumers to special warnings for certain products that contain chemicals above certain threshold levels. The general Proposition 65 notice is as follows: 

WARNING: Some porcelain products, as noted on the pertinent product pages within this website, contain Lead, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm.

WARNING: Granite, Marble, Quartzite and Quartz products, as noted on those product pages within this website, contain Crystalline Silica, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm."