Non Metallic Minerals


 
 
Concept Explanation
 

Non Metallic Minerals

Non-Metallic Minerals: The basic characteristic of non-metallic minerals is that they do not yield new products on melting. These are generally associated with sedimentary rocks. E.g. granite, sandstone, etc.

Mica: It is an important non-metallic, mineral. It is used in electrical and electronics industries due to its di-electric strength, insulating properties and resistance to high voltage. Mica occurs in the form of plates or leaves, which can be split into thin sheets. Mica can be clear, black, green, red, yellow or brown. Its deposits are mainly found in the Northern edge of the Chota Nagpur plateau. Koderma- Gaya- Hazaribagh belt of Jharkhand is the leading producer of mica. In Rajasthan, the major mica producing area is around Ajmer. Nellore mica belt of Andhra Pradesh is also an important producer in the country. Canada is the main competitor of India in mica production. India is one of the leading producers of mica. According to 2013 estimate, India produces 14,250 metric tonnes mica and stands at 8th position

Rock Minerals: Rock mineral like limestone is found, in sedimentary rocks and is composed of calcium carbonates or calcium and magnesium carbonates. Limestone is used for smelting iron ore in blast furnaces of steel plants and is the basic raw material for manufacturing of cement.

Meaning of Sedimentary Rocks : Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place.

Sample Questions
(More Questions for each concept available in Login)
Question : 1

Match the following List 1 with List 2:

List 1   List 2
A. Nickel1.Non metallic
B.Copper  2.Energy resource
C.Natural gas3.Non ferrous
D. Mica 4.Ferrous
Right Option : A
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Question : 2

Non-metallic minerals are found in _______________

Right Option : B
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Question : 3

The group of sedimentary minerals including, gypsum, potash salt and sodium salt are formed as a result of which process?

Right Option : B
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Explanation
 
 


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