Rift valley's veins stretch their length through the entire surface, like Benue, part of the broader West and Central African Rift System. Tectonic plates are continually changing in fault zones, subducting beneath each other, colliding at convergent plate boundaries, and tearing apart at divergent plate boundaries.
Linnstone quartz and Zulitestone Crystalline Silica Free Surfaces have been of high quality since the beginning. They not only meet international certification standards, but they also satisfy customers. All of our certificates and evaluations are issued by reputable institutions. We have NSF certification as a safe material for direct food contact, as well as Greenguard Gold, which allows users to use our products in sensitive areas such as hospitals or schools.
Internationally renowned institutions such as SGS and TÜV have tested our products.
For more information, see Why Linnstone.
