Tag: mineral fuels

Anthracite is relatively rare compared to other forms of coal, accounting for approximately 5% of the world's total coal reserves.

Lignite, also known as brown coal, has a lower carbon content, typically ranging between 40% and 60%.

Peat is the first stage of coal formation and has the lowest carbon content, typically ranging from 40% to 60%. Other options represent higher-grade coals like lignite, bituminous, or anthracite.

When the Lignite is burnt the flame is in brownish color. Lignite is a low grade brown coal, which is soft with high moisture content.

Caol is known as "Black Diamond". This is a fossil fuel which was formed millions of years ago when giant fern and swamps got buried under the layers of the earth. Coal is therefore referred to as "Buried sunshine". Electricity from coal is called "Thermal Power".

Anthracite also is the most brittle among coal types. When burned, it produces a very hot, blue flame.

Coal is formed from the accumulation and burial of plant matter over millions of years, which is a process characteristic of sedimentary rock formation.

Lignite is a low grade brown coal, which is soft with high moisture content. The principal lignite reserves are in Neyveli in Tamil Nadu and are used for generation of electricity. 

Gondwana coalfields in India are primarily located in the Damodar valley, which spans across the states of West Bengal and Jharkhand.

The Neyveli lignite deposits in Tamil Nadu are the most significant and economically exploitable lignite reserves in India.