Types
Features
Monuments
Famous Monuments
Sculpture
Famous Sculptures
Pictographs
Petroglyphs
Figurines
Fossils
Intermediate volcanic rock
Has High structural resistance against erosion and climate, Host rock for Diamond, Very fine grained rock
Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale
Easily splits into thin plates, Generally rough to touch, Very fine grained rock