Amphibolite and Andesite Types and Facts
Types
Hornblendite
  
Icelandite
  
Features
Clasts are smooth to touch, Matrix variable, Surfaces are often shiny
  
Generally rough to touch, High silica content, Is one of the oldest rock
  
Archaeological Significance
  
  
Monuments
Used
  
Used
  
Famous Monuments
Data Not Available
  
Middle of the Earth in Ecuador
  
Sculpture
Used
  
Used
  
Famous Sculptures
Data Not Available
  
Data Not Available
  
Pictographs
Not Used
  
Not Used
  
Petroglyphs
Not Used
  
Not Used
  
Figurines
Used
  
Used
  
Fossils
Absent
  
Absent
  
Types of Amphibolite and Andesite
Some rocks according to their use or texture are classified into different types. Know more about Amphibolite Texture and Andesite Texture. Types of Amphibolite are Hornblendite whereas the types of Andesite are Icelandite.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. Amphibolite and Andesite 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. Amphibolite and Andesite were not used for creating petroglyphs.