Types
Features
Monuments
Famous Monuments
Sculpture
Famous Sculptures
Pictographs
Petroglyphs
Figurines
Fossils
Generally rough to touch, High silica content, Is one of the oldest rock
Middle of the Earth in Ecuador
Nepheline-Basanite, Analcite-Basanite and Leucite-Basanite
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate, Used as a touchstone