Lignite and Diatomite Types and Facts
Types
Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite
  
Not Available
  
Features
Generally rough to touch, Helps in production of Heat and Electricity, Used as fossil fuel
  
Clasts are smooth to touch, Is one of the oldest rock, Smooth to touch, Very fine grained rock
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Not Yet Used
  
Famous Monuments
Not Applicable
  
Not Applicable
  
Sculpture
Not Yet Used
  
Not Yet Used
  
Famous Sculptures
Not Applicable
  
Not Applicable
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Not Yet Used
  
Not Yet Used
  
Fossils
Present
  
Present
  
Types of Lignite and Diatomite
Some rocks according to their use or texture are classified into different types. Know more about Lignite Texture and Diatomite Texture. Types of Lignite are Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite whereas the types of Diatomite are Not Available.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. Lignite and Diatomite 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. Lignite and Diatomite were used for creating petroglyphs.