Flint and Lignite Types and Facts
Types
Chert and Jasper
Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite
Features
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate
Generally rough to touch, Helps in production of Heat and Electricity, Used as fossil fuel
Archaeological Significance
Types of Flint and Lignite
Some rocks according to their use or texture are classified into different types. Know more about Flint Texture and Lignite Texture. Types of Flint are Chert and Jasper whereas the types of Lignite are Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite.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. Flint and Lignite were 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. Flint and Lignite were for creating petroglyphs.