Hornblendite and Tuff Types and Facts

Hornblendite

Tuff

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1 Types

1.1 Types

Hornblende Gabbro and Hornblende Peridotite

Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.

1.2 Features

Clasts are smooth to touch, Matrix variable, Surfaces are often shiny

Always found as volcanic pipes over deep continental crust

1.3 Archaeological Significance

1.3.1 Monuments

Not Yet Used

Used

1.3.2 Famous Monuments

Not Applicable

Easter Island in the Polynesian Triangle, Pacific Ocean

1.3.3 Sculpture

Used

1.3.4 Famous Sculptures

Data Not Available

1.3.5 Pictographs

Not Used

Used

1.3.6 Petroglyphs

Not Used

Used

1.3.7 Figurines

Used

1.4 Fossils

Absent

Types of Hornblendite and Tuff

Some rocks according to their use or texture are classified into different types. Know more about Hornblendite Texture and Tuff Texture. Types of Hornblendite are Hornblende Gabbro and Hornblende Peridotite whereas the types of Tuff are Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite..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. Hornblendite was not used to create pictographs whereas Tuff 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. Hornblendite was not used to create petroglyphs whereas Tuff was used to create petroglyphs.