Gneiss and Chalk Types and Facts

Gneiss

Chalk

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1 Types

1.1 Types

Augen Gneiss, Henderson Gneiss, Lewisian Gneiss, Archean and Proterozoic Gneiss.

Not Available

1.2 Features

Generally rough to touch, Is one of the oldest rock

Clasts are smooth to touch, Is one of the oldest rock, Smooth to touch, Very fine grained rock

1.3 Archaeological Significance

1.3.1 Monuments

Used

1.3.2 Famous Monuments

Konark Sun Temple in India, Washington Monument, US

Data Not Available

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

Absent

Present

Types of Gneiss and Chalk

Some rocks according to their use or texture are classified into different types. Know more about Gneiss Texture and Chalk Texture. Types of Gneiss are Augen Gneiss, Henderson Gneiss, Lewisian Gneiss, Archean and Proterozoic Gneiss. whereas the types of Chalk are Not Available.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. Gneiss was not used to create pictographs whereas Chalk 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. Gneiss was not used to create petroglyphs whereas Chalk was used to create petroglyphs.