Types
Features
Monuments
Famous Monuments
Sculpture
Famous Sculptures
Pictographs
Petroglyphs
Figurines
Fossils
Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale
Easily splits into thin plates, Generally rough to touch, Very fine grained rock
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite
Has High structural resistance against erosion and climate, Very fine grained rock