


Types of Minerals - Nonmetallic Industrial Mineral Resources of the U.S.
Non-Metallic 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 and gemstones. Such materials lack metallic characteristics like good electric and thermic conductivity, luster, rigor, and malleability; they are, however, …Based on the Species of their Content. Depending on the species of their content, Non-metallic Minerals can be classified into the following types: Metallurgical auxiliary material. These include refractory clay, dolomite, silica, magnesite, fluorite etc. Chemical non-metallic minerals. For example, sulfur, phosphorus, magnesium, potassium ...
