Lignite and Anorthosite Types and Facts

Lignite

Anorthosite

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1 Types

1.1 Types

Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite

Proterozoic Anorthosite and Archean Anorthosite

1.2 Features

Generally rough to touch, Helps in production of Heat and Electricity, Used as fossil fuel

Generally rough to touch, Is one of the oldest rock

1.3 Archaeological Significance

1.3.1 Monuments

Not Yet Used

1.3.2 Famous Monuments

Not Applicable

1.3.3 Sculpture

Not Yet Used

Used

1.3.4 Famous Sculptures

Not Applicable

1.3.5 Pictographs

Used

Not Used

1.3.6 Petroglyphs

Used

Not Used

1.3.7 Figurines

Not Yet Used

Used

1.4 Fossils

Present

Absent

Types of Lignite and Anorthosite

Some rocks according to their use or texture are classified into different types. Know more about Lignite Texture and Anorthosite Texture. Types of Lignite are Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite whereas the types of Anorthosite are Proterozoic Anorthosite and Archean Anorthosite.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. Lignite was used to create pictographs whereas Anorthosite is not 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. Lignite was used to create petroglyphs whereas Anorthosite was not used to create petroglyphs.