Precious Metals: Gold, Silver, Platinum
Geography › Mineral and Energy Resources · Topic 12.5
Precious metals are rare, valuable and chemically stable metals: gold, silver and platinum, with palladium and the other platinum group metals. Gold and silver occur in quartz veins and placers and as by-products of copper, lead and zinc, and platinum with nickel in layered igneous complexes such as the Bushveld Complex of South Africa. In India Hutti in Karnataka is the main gold mine, most silver comes from the lead-zinc mines of Rajasthan, and platinum is imported.
7 min read · UPSC Prelims · Geography · Mineral and Energy Resources
At a Glance
- Gold Hutti (Karnataka); South Africa, China
- Silver By-product of lead and zinc
- Platinum Bushveld Complex, South Africa
- Old mines Kolar Gold Fields, closed 2001
- India Imports most gold and platinum
- Exam link UPSC Prelims, Geography: Mineral and Energy Resources
Where Does It Fit?
This topic follows the non-ferrous metals and takes the metals valued for rarity and stability. It links to the mining regions and to the study of the Indian economy and trade. Previous topic: Non-Ferrous Metallic Minerals: Copper, Bauxite, Aluminium, Zinc, Lead, Tin. Next topic: Mineral Chemicals: Mica, Potash, Phosphate, Nitrates, Sulphur.
How Do Gold and Silver Occur?
- Gold: found as native metal in quartz veins in old crystalline rocks, mainly Archaean greenstone belts, and as fine particles in river sands and gravels called placer deposits. Gold is also recovered as a by-product of copper mining. It does not tarnish, is easily worked, and is a store of value, with uses in jewellery, central bank reserves, electronics and dentistry.
- Silver: found with lead, zinc and copper ores, and so mostly a by-product, with some primary silver mines. It has the highest electrical conductivity of all metals and is used in jewellery, coins, photography, electronics, solar panels and medicine.
- Gold purity: measured in carats, with 24-carat being pure gold; silver purity is measured in fineness.
Placer gold forms when running water carries gold out of eroded veins and drops it in river beds because it is very heavy, as in Running Water Depositional Landforms: Alluvial Fans, Deltas, Floodplains, Natural Levees, Meanders, Oxbow Lakes, Braided Channels. Mining of hard rock gold needs crushing, and extraction uses cyanide or mercury, which raises environmental concerns.
Where Are Gold and Silver Found?
| Region | Details |
|---|---|
| World gold | China is the largest producer, followed by Australia, Russia, Canada and the United States; South Africa’s Witwatersrand, once the largest, has declined; Ghana, Peru and Indonesia are also major producers |
| World silver | Mexico is the largest producer, followed by China and Peru, with Russia, Poland and Chile |
| Karnataka | Nearly all of India’s gold: the Hutti mine in Raichur district, run by Hutti Gold Mines Limited, and the Kolar Gold Fields, once among the deepest mines of the world, closed in 2001 as unprofitable |
| Andhra Pradesh | Ramagiri in Anantapur and the Jonnagiri area in Kurnool |
| Jharkhand | Placer gold in the Subarnarekha river sands, which gives the river its name |
| Others | Rajasthan (Banswara), Madhya Pradesh and Odisha have prospects |
| Indian silver | Mostly from the lead-zinc smelters of Hindustan Zinc in Rajasthan, which make India a large producer of by-product silver |
India’s production of gold is only a few tonnes a year, against demand of around 700 to 800 tonnes, so it imports almost all of its gold, mainly from Switzerland, the United Arab Emirates and South Africa. India has resources of several hundred tonnes of metal, and exploration for new deposits, including by the private sector, was opened up under reforms in mineral laws.
Why Does India’s Gold Matter?
- Gold imports and the current account: gold is among the largest import items by value, after crude oil, so it influences the current account deficit and the rupee, and customs duty on gold has been changed several times to manage this.
- Household savings: gold is held as jewellery, bars and coins as a store of value, and as a gift at weddings, so large stocks of gold lie idle in households and temples.
- Policy to mobilise gold: the Gold Monetisation Scheme and Sovereign Gold Bonds were launched in 2015 to bring household gold into the formal system and to offer paper gold instead of bullion. New issues of Sovereign Gold Bonds were stopped after 2024 because of the cost to the government when gold prices rose.
- Hallmarking and recycling: mandatory hallmarking of jewellery by the Bureau of Indian Standards is in place, and a good deal of gold is recycled from old jewellery.
- Prices: gold prices rose to record levels in 2025 and 2026, so current values should be taken from recent sources, and the cost of imports has increased.
As an analytical point, gold is a case where geology and economy diverge: India has little gold in the ground, but one of the largest demands. The policy aim is therefore not mining but moderating imports and channelling savings into financial assets, while using exploration to find limited domestic resources, as in fold mountains, basins India’s heartland Chota Nagpur plateau Methods Open-cast and underground Law MMDR Act, 1957 Local…">Distribution and Mining Regions of Minerals in India and the World.
What Is Special About Platinum and the Platinum Group Metals?
In short: platinum is a dense, silvery-white precious metal that does not tarnish, and it belongs to a family of six platinum group metals that are essential catalysts.
| Metal | Main use | Main sources |
|---|---|---|
| Platinum | Catalytic converters of diesel vehicles, jewellery, laboratory ware, fuel cells and electrolysers for hydrogen | Bushveld Complex of South Africa (the largest share of world output), Russia, Zimbabwe, Canada |
| Palladium | Catalytic converters of petrol vehicles, electronics and dentistry | Russia (Norilsk), South Africa, Canada, the United States |
| Rhodium, iridium, osmium, ruthenium | Catalysts, special alloys, electrical contacts and spark plugs | By-products of platinum and nickel mining |
- Occurrence: platinum group metals occur with nickel and copper sulphides in layered igneous intrusions, such as the Bushveld Complex in South Africa and the Great Dyke of Zimbabwe, and as placer grains in river sands, where the metal was first noticed in Colombia. A smaller amount is recovered as a by-product of nickel and copper refining.
- Uses: the largest use is in autocatalysts that cut vehicle emissions, followed by jewellery and industry. Platinum and iridium are also used in electrolysers for green hydrogen, a use that may rise, as in Renewable Energy: Solar, Wind, Geothermal, Tidal, Wave, Biomass, Hydrogen as a Fuel.
- Supply risk: output is concentrated in South Africa and Russia, so supply interruptions, such as power shortages in South Africa, affect prices.
- India: India has only small resources of platinum group metals, mostly in Odisha (the Baula-Nuasahi area of Keonjhar district) with a smaller occurrence in Karnataka, and no significant production, so it imports platinum and palladium; check the latest Indian Minerals Yearbook. Jewellery demand and the vehicle industry drive the imports.
As an analytical point, the precious metals combine three roles: store of value (gold and silver), industrial input (silver and the platinum group) and ornament. Platinum differs from gold and silver in having little monetary use and a strong industrial role in emission control and clean energy. Their distribution is described in Distribution and Mining Regions of Minerals in India and the World.
Why Is This Topic Important?
- Facts Kolar and Hutti asked
- Economy Imports and bonds
- Link Lead-zinc by-product
What Came Next?
The next topic describes the mineral chemicals: mica, potash, phosphate, nitrates and sulphur. Next topic: Mineral Chemicals: Mica, Potash, Phosphate, Nitrates, Sulphur.
Key People and Terms
- Placer deposit Metal in river sands
- Carat Gold purity measure
- Hallmarking Purity certification
- Gold Monetisation Scheme Scheme to deposit household gold
- Sovereign Gold Bond Government paper gold
- Greenstone belt Old gold-bearing rock zone
Exam Corner
Points to Remember
- Hutti is India’s working gold mine.
- Kolar mines closed in 2001.
- Silver is mostly a by-product.
- 24 carat means pure gold.
- Gold is India’s major import after crude oil.
Do Not Confuse With
- Kolar and Hutti Closed mine versus working mine
- Lode and placer gold In rock veins versus in river sands
- Gold Monetisation Scheme and Sovereign Gold Bond Depositing old gold versus buying paper gold
Memory Hook
Gold in veins and sands, silver in lead’s shadow, platinum with nickel: three precious metals, three kinds of home.
Mains Angle
Questions ask about geography against demand. These points add depth.
- Supply Small domestic mines
- Demand Cultural and investment
- Policy Imports and monetisation
A Question You May Face
An original practice question, not a past paper question.
“Describe the occurrence and distribution of gold, silver and platinum, and discuss India’s dependence on imports of precious metals.”
How to Answer
- Occurrence Veins, placers, by-products.
- World South Africa, China, Australia.
- India Hutti, Rajasthan, imports.
- Policy Monetisation and recycling.
GS Relevance
Frequently Asked Questions
Which state is the main producer of gold in India?
Karnataka is the main producer of gold in India. The Hutti Gold Mines in Raichur district are the only large working gold mine, and the Kolar Gold Fields, once among the deepest mines in the world, were closed in 2001. Smaller deposits are found in Andhra Pradesh and Jharkhand.
Why did the Kolar Gold Fields close?
The Kolar Gold Fields in Karnataka, worked for over a century, were closed in 2001 because the ore had become low in grade and the mines were very deep, which made production costly and unprofitable. The area has since been proposed for redevelopment, including mining of old tailings.
How is silver produced in India?
Most silver in India is obtained as a by-product of lead and zinc smelting, mainly by Hindustan Zinc in Rajasthan, and a small amount comes from copper refining. Silver is used for jewellery, coins, electronics and solar panels, and India also imports silver.
What are placer gold deposits?
Placer deposits are accumulations of heavy gold particles in river sands and gravels. Rivers erode gold-bearing rock and carry the particles, which settle in places where the current slows. The Subarnarekha river in Jharkhand is known for placer gold and gets its name from it.
What are the platinum group metals and where do they come from?
The platinum group metals are platinum, palladium, rhodium, iridium, osmium and ruthenium, used mainly as catalysts in vehicle emission control and industry. They occur with nickel and copper in layered igneous intrusions, and South Africa's Bushveld Complex is the largest source, followed by Russia, Zimbabwe and Canada.
PYQ Practice — Statement Analysis
1 Hutti in Karnataka is a gold mine.
It is in Raichur district.
2 The Kolar Gold Fields are still the largest producers in India.
They were closed in 2001.
3 Most silver in India comes from lead and zinc smelting.
It is a by-product.
4 South Africa's Bushveld Complex is a major source of platinum.
It is a layered igneous complex rich in platinum group metals.
Past Mains Questions on This Topic
This topic comes under Mineral and Energy Resources. UPSC Mains questions asked on the matching syllabus topic, year-wise with marks:
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