Sibelco operates a significant high-purity quartz (HPQ) mining and processing facility in Spruce Pine, North Carolina. This region is renowned for producing the world's purest quartz, a critical component in various high-tech industries. 🏔️ Geological Background The Spruce Pine Mining District, located in the Blue Ridge Mountains, formed approximately 380 million years ago during the Ordovician period. The unique geological conditions, including a lack of water during formation, resulted in qua