Andesite and Anthracite Types and Facts

Andesite

Anthracite

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1 Types

1.1 Types

Icelandite

Semi-anthracite and Meta-anthracite

1.2 Features

Generally rough to touch, High silica content, Is one of the oldest rock

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

1.3 Archaeological Significance

1.3.1 Monuments

Used

Not Yet Used

1.3.2 Famous Monuments

Middle of the Earth in Ecuador

Not Applicable

1.3.3 Sculpture

Used

Not Yet Used

1.3.4 Famous Sculptures

Data Not Available

Not Applicable

1.3.5 Pictographs

Not Used

Used

1.3.6 Petroglyphs

Not Used

Used

1.3.7 Figurines

Used

Not Yet Used

1.4 Fossils

Absent

Types of Andesite and Anthracite

Some rocks according to their use or texture are classified into different types. Know more about Andesite Texture and Anthracite Texture. Types of Andesite are Icelandite whereas the types of Anthracite are Semi-anthracite and Meta-anthracite.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. Andesite was not used to create pictographs whereas Anthracite 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. Andesite was not used to create petroglyphs whereas Anthracite was used to create petroglyphs.