INDIAN GEOGRAPHY

Detailed explanation-1: -Conclusion: Non-metallic minerals are a class of chemical elements that, when melted, yield no new products. Sand, gravel, limestone, clay, and marble are all examples of non-metallic minerals. They lack metallic characteristics such as electricity, rigour, malleability, and thermal conductivity.

Detailed explanation-2: -Non-metallic minerals are minerals that do not contain any metals. Some examples of non-metallic minerals are limestone, mica, gypsum, coal, dolomite, phosphate, salt, and granite.

Detailed explanation-3: -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.