Gneiss and Gossan Types and Facts

Gneiss

Gossan

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1 Types

1.1 Types

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

Translocated gossan and Leakage gossan

1.2 Features

Generally rough to touch, Is one of the oldest rock

Clasts are smooth to touch, Easily splits into thin plates

1.3 Archaeological Significance

1.3.1 Monuments

Used

Not Yet Used

1.3.2 Famous Monuments

Konark Sun Temple in India, Washington Monument, US

Not Applicable

1.3.3 Sculpture

Not Yet Used

1.3.4 Famous Sculptures

Not Applicable

1.3.5 Pictographs

Not Used

Used

1.3.6 Petroglyphs

Not Used

Used

1.3.7 Figurines

Not Yet Used

1.4 Fossils

Absent

Types of Gneiss and Gossan

Some rocks according to their use or texture are classified into different types. Know more about Gneiss Texture and Gossan Texture. Types of Gneiss are Augen Gneiss, Henderson Gneiss, Lewisian Gneiss, Archean and Proterozoic Gneiss. whereas the types of Gossan are Translocated gossan and Leakage gossan.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 Gossan 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 Gossan was used to create petroglyphs.