Porphyry and Amphibolite Types and Facts

Porphyry

Amphibolite

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1 Types

1.1 Types

Rhomb Porphyry

Hornblendite

1.2 Features

Generally rough to touch, Is one of the oldest rock, Surfaces are often shiny

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

1.3 Archaeological Significance

1.3.1 Monuments

Used

1.3.2 Famous Monuments

Data Not Available

1.3.3 Sculpture

Used

1.3.4 Famous Sculptures

Data Not Available

1.3.5 Pictographs

Not Used

1.3.6 Petroglyphs

Not Used

1.3.7 Figurines

Used

1.4 Fossils

Absent

Types of Porphyry and Amphibolite

Some rocks according to their use or texture are classified into different types. Know more about Porphyry Texture and Amphibolite Texture. Types of Porphyry are Rhomb Porphyry whereas the types of Amphibolite are Hornblendite.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. Porphyry and Amphibolite were not used for creating 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. Porphyry and Amphibolite were not used for creating petroglyphs.