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Tungsten Mining
Context
The Union Ministry of Mines announced the cancellation of the auction for the tungsten mineral block in Nayakkarpatti, Madurai district, Tamil Nadu. This move came after strong opposition from the local community due to the inclusion of the Arittapatti biodiversity heritage site, which is known for its ecological significance.
About Tungsten
- Tungsten is a rare, valuable metal that plays a critical role in industries like aerospace, automotive, construction, and electronics.
- Key Properties:
- Tungsten has the highest melting point of any metal (3,422°C) and is resistant to acids at normal temperatures.
- It also exhibits good corrosion resistance, high thermal and electrical conductivity, and can be drawn into thin wires due to its ductility and tensile strength.
- Primary Sources: Tungsten is extracted from minerals such as scheelite (Calcium tungstate) and wolframite (a mixture of ferrous and manganous tungstate), which are generally found in hydrothermal deposits.
- Mining Methods: The two main ways of mining tungsten are: Underground mining and Open-pit mining
- Strategic Importance: Tungsten is one of the ‘30 critical minerals’ identified by the Indian government for its importance in various strategic and industrial applications.
- Others are:Antimony, Beryllium, Bismuth, Cobalt, Copper, Gallium, Germanium, Graphite, Hafnium, Indium, Lithium, Molybdenum, Niobium, Nickel, PGE, Phosphorous, Potash, REE, Rhenium, Silicon, Strontium, Tantalum, Tellurium, Tin, Titanium, Vanadium, Zirconium, Selenium and Cadmium.
Arittapatti biodiversity heritage site
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