Minerals & Industry
Bihar GK · खनिज और उद्योग
📋Quick Overview
Bihar was once mineral-rich, but after Jharkhand was carved out in November 2000, most of the mineral wealth (coal, iron ore, bauxite, copper) went to Jharkhand. Present-day Bihar retains limited minerals — most notably the Pyrite deposits at Amjhor (Rohtas) which are the largest in Asia. The state's industrial identity is now built on agro-industries like sugar, silk, and food processing.
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Amjhor (Rohtas district, Bihar) has Asia's largest deposits of Pyrite (iron sulphide). Pyrite is used in the manufacture of sulphuric acid — critical for the fertilizer industry. Hindustan Copper and fertilizer plants use these deposits.
📖Minerals Found in Bihar (Post-Jharkhand)
| Mineral | Location | Use / Special Note |
|---|---|---|
| Pyrite (Iron Sulphide) | Amjhor, Rohtas district | Asia's largest deposit; used for sulphuric acid and fertilizers |
| Soapstone / Talc | Munger hills | Used in cosmetics, ceramics, paper industry |
| Silica Sand / Glass Sand | Bhojpur, Rohtas | Used in glass manufacturing; high silica content |
| Mica | Nawada, Gaya (fringe areas) | Electrical insulation; limited deposits near Jharkhand border |
| Limestone | Rohtas, Kaimur | Cement manufacturing; Bihar has cement industry in Rohtas |
📖Major Industries of Bihar
| Industry | Location / Cluster | Key Facts |
|---|---|---|
| Sugar Industry | W. Champaran, E. Champaran, Muzaffarpur, Darbhanga | Bihar was once India's largest sugar industry state; BISCOMAUN manages co-op mills |
| Silk / Textile Industry | Bhagalpur ('Silk City') | Tussar silk — GI tagged; exported worldwide; Bhagalpur silk global brand |
| Jute Industry | Purnea, Katihar | Grows in North-East Bihar terai; jute mills present |
| Leather Industry | Muzaffarpur, Darbhanga | Tanning and leather goods; traditional craft |
| Cement Industry | Rohtas (Dalmia Group) | Dalmianagar (Rohtas) — major cement production center |
| Food Processing | Patna, Muzaffarpur, Vaishali | Litchi, makhana, maize processing — growing sector |
| Fertilizer Plant | Barauni (Begusarai) | Hindustan Fertilizer Corporation (HFC) at Barauni; uses natural gas |
| Oil Refinery | Barauni (Begusarai) | Barauni Refinery (BPCL) — Bihar's major oil refinery, crude from Assam |
📝Industrial Institutions & Organizations
- •BSIDC: Bihar State Industrial Development Corporation — promotes and develops industries.
- •BISCOMAUN: Bihar State Cooperative Marketing Union — handles agro-procurement and sugar mills.
- •Bihar Investment Summit: Held periodically to attract FDI — Patna is main commercial hub.
- •Patna–Gaya–Sasaram industrial axis: Key industrial corridor of Bihar.