Trachyandesite and Nepheline Syenite Types and Facts
Types
Basaltic Trachyandesite
  
Borolanite and Litchfieldite
  
Features
Has High structural resistance against erosion and climate, Very fine grained rock
  
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Used
  
Famous Monuments
Not Applicable
  
Data Not Available
  
Sculpture
Used
  
Used
  
Famous Sculptures
Data Not Available
  
Data Not Available
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Used
  
Used
  
Fossils
Absent
  
Absent
  
Types of Trachyandesite and Nepheline Syenite
Some rocks according to their use or texture are classified into different types. Know more about Trachyandesite Texture and Nepheline Syenite Texture. Types of Trachyandesite are Basaltic Trachyandesite whereas the types of Nepheline Syenite are Borolanite and Litchfieldite.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. Trachyandesite and Nepheline Syenite were 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. Trachyandesite and Nepheline Syenite were used for creating petroglyphs.