About Keystone Marble & Granite Keystone Marble and Granite is a reliable and trusted source of premium countertops in Horsham, Pennsylvania. The company has built a stellar reputation for its ...

Congress considers a bill to protect quartz manufacturers from lawsuits filed by stone cutters who contract a debilitating disease.

A surge in quartz countertop fabrication has triggered a growing epidemic of silicosis — an incurable lung disease — among ...