This document discusses iron ore and its mineralogy, types of iron formations, distribution, and uses. It notes that iron is the second most abundant element in the earth's crust and accounts for 5-6% of the lithosphere. There are two main types of iron formations - the Algoma type which is associated with volcanic and greywacke sediments, and the Superior type which is characteristic of Proterozoic formations. The major deposits of iron ore are located in India in the states of Jharkhand, Orissa, Chattisgarh, Karnataka, Maharashtra, Andhra Pradesh, and Goa. Iron has been widely used since ancient times in construction, infrastructure, appliances and buildings.

1. IRON ORE
Dr. C.P. DORLIKAR

2. Contents:-
 Introduction
 Mineralogy
 Types of Iron Formation
 Distribution and Occurrence
 Conclusion

3. Introduction
 Iron is the most indispensable mineral to
man.
 It is the second largest element in the
earth's crust.
 Iron is the most abundant metallic element
in the earth’s crust and accounts for 5-6% of
the lithosphere.

4. Mineralogy
Ore Appearance Composition % of Fe
Hematite
Shades of red
and reddish
brown

5. Examples
Hematite Magnetiite

6. Types of Iron Formation
 Algoma Type
• Dominant in Archean age and characterized
by thin banding and absence of oolitic and
granular texture.
• Closely associated with volcanic and
greywacke sediments
 Superior Type
• Characteristics formation of Proterozoic
age.

7. ORIGIN AND CLASSIFICATION OF IRON
ORE DEPOSITS
The iron ore deposits of India can be broadly divided
in to the following six groups.
•Banded iron formation of Precambrian age.
•Sedimentary Iron ore deposits of siderite and
Limonitic composition
•Laterite Ores derived from the sub-aerial alterations
•Ores formed by magnetic activity
•Titaniferous and vanadiferous magnetites
•Fault and fissure filling deposits

8. Distribution and Occurrence
The major deposits of Iron Ore are located in:
•Jharkhand
•Orissa
•Chattisgarh
•Karnataka
•Maharashtra
•Andhra Pradesh
•Goa

9. Banded Iron Formation

10. Uses-
Iron has found its usage from a very
early part of human civilization, second
only to copper - bronze.
Iron is widely in the construction of
Roads, Railway, other infrastructure,
appliances, and buildings.

11. THANK YOU