Metallic Minerals: Classification & Examples | DGMS Mining Notes


                         🔹1.Definition 

Metallic minerals are natural substances containing metals that can be smelted or refined profitably. They exhibit metallic luster, conductivity, and malleability.

🔹 2. Classification of Metallic Minerals
Type Description Examples
Ferrous Metals Contain iron; often magnetic Iron (Fe), Manganese (Mn), Chromium (Cr), Titanium (Ti)
Non-Ferrous Metals Do not contain iron; light and corrosion-resistant Copper (Cu), Lead (Pb), Zinc (Zn), Nickel (Ni)
Noble Metals Chemically inert and rare Gold (Au), Silver (Ag), Platinum (Pt)
Light Metals Low density and high reactivity Aluminium (Al), Magnesium (Mg), Lithium (Li)
Rare / Strategic Metals Used in aerospace and electronics Tungsten (W), Molybdenum (Mo), Titanium (Ti)

🔹 3. Major Indian Deposits
Metal Key States Notable Mines
Iron Odisha, Jharkhand, Chhattisgarh Keonjhar, Bailadila
Manganese Madhya Pradesh, Maharashtra, Odisha Balaghat, Bhandara
Copper Rajasthan, Madhya Pradesh Khetri, Malanjkhand
Lead-Zinc Rajasthan Zawar, Rajpura-Dariba
Gold Karnataka Kolar, Hutti

🔹 4. Economic Importance
  • Ferrous metals: Steel & infrastructure.
  • Non-ferrous metals: Electrical, machinery industries.
  • Noble metals: Jewelry and electronics.
  • Light metals: Transportation, aerospace.
  • Rare metals: High-tech applications and defense.

🔹 5. DGMS Relevance 

 Topics frequently asked:
  • Statewise distribution of metallic ores.
  • Ferrous vs non-ferrous differences.
  • Main ore minerals and chemical formulas.
  • Host rock association of Indian deposits.

🧠 25 DGMS MCQs WITH ANSWERS & SOLUTIONS

Q1. Metallic minerals are those that:
A. Yield metals by smelting

B. Are transparent
C. Contain no metal

D. Form only in sedimentary rocks

E. Are non-crystalline

Answer: A
Solution: Metallic minerals produce metals through smelting and refining.

Q2. A ferrous metal always contains:
A. Copper

B. Iron

C. Aluminium

D. Zinc

E. Gold
Answer: B
Solution: Ferrous = iron-bearing metal.

Q3. Non-ferrous metal example:
A. Iron

B. Manganese

C. Copper 

D. Nickel

E. Chromium
Answer: C
Solution: Copper contains no iron.

Q4. The chief ore of iron is:
A. Galena

B. Bauxite 

C. Hematite

D. Chalcopyrite

E. Pyrite
Answer: C
Solution: Hematite (Fe₂O₃) is the main iron ore.

Q5. Chromium ore is found mainly in:
A. Sukinda (OD)

B. Zawar (RJ)

C. Singhbhum (JH)

D. Bailadila (CG)

E. Khetri (RJ)
Answer: A
Solution: Sukinda Valley is India’s largest chromite belt.

Q6. Zinc ore is:
A. Galena

B. Cassiterite

C. Sphalerite

D. Pyrolusite

E. Ilmenite
Answer: C
Solution: Sphalerite (ZnS) is zinc ore.

Q7. Noble metals are characterized by:
A. High density only

B. Corrosion resistance

C. Low melting point

D. Magnetism

E. Solubility in water
Answer: B
Solution: Gold, silver and platinum resist oxidation.

Q8. Largest copper belt of India is:
A. Khetri

B. Malanjkhand

C. Singhbhum

D. Zawar

E. Ambaji
Answer: A
Solution: Khetri Copper Belt – oldest and largest producer.

Q9. Main ore of lead is:
A. Galena

B. Pyrolusite

C. Hematite

D. Bauxite

E. Cassiterite
Answer: A
Solution: Galena (PbS).

Q10. The oldest gold mine in India is:
A. Hutti

B. Kolar

C. Zawar

D. Singhbhum

E. Ramagiri
Answer: B
Solution: Kolar Gold Fields, Karnataka.

Q11. Main use of manganese is in:
A. Cement

B. Fertilizer

C. Steel production

D. Paint

E. Glass
Answer: C
Solution: It hardens and deoxidizes steel.

Q12. Ore of tin is:
A. Cassiterite

B. Ilmenite

C. Sphalerite

D. Pyrolusite

E. Magnetite
Answer: A
Solution: Cassiterite (SnO₂).

Q13. Aluminium is extracted from:
A. Bauxite

B. Magnetite

C. Siderite

D. Limonite

E. Pyrite
Answer: A
Solution: Bauxite is hydrated aluminium oxide.

Q14. India’s largest iron ore state:
A. Odisha

B. Jharkhand

C. MP

D. Goa

E. Karnataka
Answer: A
Solution: Odisha leads iron ore output.

Q15. Ferrous metal pair:
A. Fe-Mn

B. Cu-Pb

C. Zn-Ni

D. Sn-Ti

E. Ag-Au
Answer: A
Solution: Iron and manganese both ferrous.

Q16. Strategic metal used in aircraft:
A. Titanium

B. Lead

C. Zinc

D. Tin

E. Cobalt
Answer: A
Solution: Titanium = light and high-strength.

Q17. Main ore of manganese:
A. Pyrolusite

B. Magnetite

C. Siderite

D. Hematite

E. Chalcopyrite
Answer: A
Solution: Pyrolusite (MnO₂).

Q18. Zawar mine produces:
A. Iron

B. Lead-Zinc

C. Copper

D. Bauxite

E. Gold
Answer: B
Solution: Lead-Zinc mine in Rajasthan.

Q19. Which metal belongs to rare earth group?
A. Lanthanum

B. Aluminium

C. Nickel

D. Copper

E. Tin
Answer: A
Solution: Lanthanum belongs to rare earth series.

Q20. Main source of Platinum Group Metals in India:
A. Baula-Nuasahi (OD)

B. Khetri (RJ)

C. Singhbhum (JH)

D. Balaghat (MP)

E. Tosham (HR)
Answer: A
Solution: Odisha hosts PGE chromite belts.

Q21. Molybdenum is used for:
A. Glass making

B. Alloy steel

C. Paints

D. Fertilizer

E. Battery acid
Answer: B
Solution: Used in high-strength steel and filaments.

Q22. Gold is a ________ metal.
A. Base

B. Ferrous

C. Noble

D. Alloy

E. Dispersed
Answer: C
Solution: Gold is chemically inert = noble.

Q23. Nickel is mostly associated with:
A. Ultramafic rocks

B. Limestone

C. Shale

D. Sandstone

E. Granite
Answer: A
Solution: Nickel occurs in ultramafic magmatic rocks.

Q24. Non-ferrous metal used in batteries:
A. Lead

B. Iron

C. Manganese

D. Chromium

E. Silver
Answer: A
Solution: Lead is used in lead-acid batteries.

Q25. DGMS questions on metallic ores focus on:
A. Host rock and mineral association

B. Color only

C. Magnetism only

D. Mining machinery

E. Safety gear
Answer: A
Solution: DGMS exam tests geological context of ores.

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