Manufacturer of Non Metallic Minerals http://www.alliedtalc.com/manufacturer-of-non-metallic-minerals.php Nonmetallic minerals are a special group of chemical elements from which no new product can be generated if they are melted. Nonmetallic minerals are for example sand, gravel, limestone, clay and marble. Such materials lack metallic characteristics like good electric and thermic conductivity, luster, rigor, and malleability; they are, however, essential for many industries.