Tungsten Mining in India: Opportunities, Challenges, and Environmental Concerns

Why in the News?

Tungsten mining in India has sparked a heated debate following the recent grant of mining rights in Madurai. This article explores tungsten’s significance, its uses, and the controversy surrounding mining in Tamil Nadu.

What is Tungsten? Properties and Applications

Tungsten, also known as wolfram, is a versatile and highly durable metal known for its:

• Highest melting point among all elements.
• Resistance to corrosion and excellent thermal conductivity.
• Strength under high-stress and high-temperature environments.

Industrial Applications

1. Machinery and Tools: Widely used in cutting tools, drills, and heavy-duty machinery.
2. Aerospace: Essential for turbine blades, nozzles, and high-performance alloys.
3. Defense: Used in missile tips and radiation shielding.

Other Uses

• Light bulb filaments, X-ray tubes, and electronic devices.
• Chemical compounds for catalysts, pigments, and lubricants.

Tungsten Reserves and Mining in India

India’s tungsten reserves are limited, with key deposits located in:

• Rajasthan (Degana).
• Karnataka (Sandur).
• Andhra Pradesh and Maharashtra.

Current Mining Landscape

• India imports a significant portion of its tungsten due to limited domestic production.
• Small-scale mining exists but falls short of meeting the country’s needs.

Strategic Importance

Tungsten is a critical mineral for India’s defense and aerospace industries, making a stable supply vital for national security.

The Tungsten Mining Controversy in Madurai

Background

The Ministry of Mines recently auctioned tungsten mining rights in Melur, Madurai district, Tamil Nadu, granting them to Hindustan Zinc Limited.

Stakeholders’ Views

• Central Government: Claims the auction aligns with the Mines and Minerals (Development and Regulation) Act, 1957.
• Tamil Nadu Government: Initially approved the project but later opposed it, with Chief Minister M.K. Stalin urging its cancellation.
• Environmentalists: Strongly oppose the project, citing risks to biodiversity and heritage.

Environmental and Cultural Concerns

• The region is home to rare wildlife, including the Laggar falcon, Shaheen falcon, and Bonelli’s eagle.
• It contains historical treasures like rock-cut temples, megalithic structures, and inscriptions from the 16th-century Pandya kingdom.
• Natural spring ponds and ecosystems are at risk of destruction.

Balancing Development and Sustainability

Sustainable Mining Practices

India must adopt eco-friendly approaches to minimize environmental damage, including:

• Advanced technologies for ore processing and waste management.
• Recycling and reusing tungsten from industrial waste to reduce dependence on mining.

Enhancing Domestic Exploration

Investments in geological surveys and exploration technologies can help discover new tungsten reserves and reduce reliance on imports.

Conclusion

India faces the challenge of balancing economic development with environmental preservation. Sustainable mining practices, strengthened domestic capacity, and alternative sources of tungsten can ensure a secure and eco-friendly future for this critical mineral.