Coal and Shale Types and Facts

Coal

Shale

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1 Types

1.1 Types

Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite

Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale

1.2 Features

Helps in production of Heat and Electricity, Used as fossil fuel

Easily splits into thin plates, Generally rough to touch, Very fine grained rock

1.3 Archaeological Significance

1.3.1 Monuments

Not Yet Used

Used

1.3.2 Famous Monuments

Not Applicable

Jantar Mantar in India

1.3.3 Sculpture

Not Yet Used

Used

1.3.4 Famous Sculptures

Not Applicable

Data Not Available

1.3.5 Pictographs

Not Used

Used

1.3.6 Petroglyphs

Not Used

Used

1.3.7 Figurines

Not Yet Used

Used

1.4 Fossils

Present

Types of Coal and Shale

Some rocks according to their use or texture are classified into different types. Know more about Coal Texture and Shale Texture. Types of Coal are Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite whereas the types of Shale are Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale.During historic times, some rocks depending on their hardness were used to create Pictographs and Petroglyphs. Rocks which are hard were generally not used. Pictographs are paintings or drawings that have been placed or created on the surface of rock. Coal was not used to create pictographs whereas Shale is used to create pictographs. Petroglyph is an image which is carved into a rock. These are images created by removing part of a rock surface by incising, picking, carving or abrading, as a form of rock art. Coal was not used to create petroglyphs whereas Shale was used to create petroglyphs.