What are the uses of rocks in industries?
The number one rock used by industry may be coal, converted to electrical energy through heat by combustion. Limestone would be high up on the list with many uses such as cement, concrete, and road construction. Tripoli is used as buffing compounds and paint filler. Granites, basalts, gneisses, and slates are used in the construction industries. Sand is used in manufacturing of heavy equipment parts and many types of glass manufacture. Shale is used in the manufacture of brick. Most rocks have uses in and of themselves or as an ore of valuable minerals.
