RRB NTPC Minerals & Resources

1.Core Concept

CORE CONCEPT Minerals are naturally occurring, inorganic solids with a fixed chemical composition and an orderly crystal structure. In geography exams, we study minerals as valuable natural resources found in Earth's crust. India has significant mineral wealth distributed across different regions. Understanding minerals means knowing what they are, where they are found, and how they are used.

2.Key Rules

OF MINERALS 1. Natural occurrence — formed by natural processes, not manufactured 2. Inorganic — made of non-living matter 3. Definite composition — specific chemical formula (e.g., iron oxide for iron ore) 4.

Crystalline structure — atoms arranged in a regular, repeating pattern 5. Solid state — exists as solid under normal conditions 6. Extractable — can be mined and used economically CLASSIFICATION OF MINERALS IN INDIA Metallic minerals: Iron ore, copper, bauxite, manganese, nickel, chromite — found in Odisha, Chhattisgarh, Jharkhand Non-metallic minerals: Limestone, gypsum, mica, asbestos, diamond — found in various states Energy minerals: Coal and petroleum — major energy sources

3.Exam Patterns

SSC CGL questions typically ask: • Major mineral producing states in India • Uses of specific minerals • Which mineral is found in which state (matching type) • Percentage of India's mineral reserves globally • Properties that define a mineral SHORTCUT/TRICK Remember "IONIC" for mineral properties: Inorganic, Natural occurrence, Ions/crystal structure, Orderly arrangement, Composition (fixed), Extractable. Use this acronym to quickly verify if something is a mineral.

4.Worked Example

5.Exam Traps