Shale and Phonolite Types and Facts
Types
Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale
Kenyte
Features
Easily splits into thin plates, Generally rough to touch, 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
Famous Monuments
Jantar Mantar in India
Data Not Available
Famous Sculptures
Data Not Available
Data Not Available
Types of Shale and Phonolite
Some rocks according to their use or texture are classified into different types. Know more about Shale Texture and Phonolite Texture. Types of Shale are Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale whereas the types of Phonolite are Kenyte.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. Shale and Phonolite 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. Shale and Phonolite were used for creating petroglyphs.