Q.Write a note on mineral resources in Tamil Nadu.

Tamil Nadu has significant deposits of lignite, limestone, magnesite, bauxite, gypsum, granite and beach-sand minerals such as ilmenite and monazite, which support its power and mineral-based industries.

In the Tamil Nadu HSC Class-11 Economics syllabus, the mineral resources of the state include:

• Lignite — the most important mineral, mined in large quantities at Neyveli (Cuddalore district); used for thermal power generation and briquettes.
• Limestone — found in Ariyalur, Tirunelveli and Coimbatore; the raw material for the cement industry.
• Magnesite — mined mainly around Salem; used for refractory bricks and in steel-making.
• Bauxite — found in the Shevaroy and Kolli hills; the ore for aluminium.
• Gypsum — used in cement and fertiliser manufacture.
• Granite and building stones — high-quality granite is quarried and exported from many districts.
• Quartz, feldspar and vermiculite — used in ceramics, glass and insulation. …