Gossan and Rhyolite Types and Facts
Types
Translocated gossan and Leakage gossan
Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.
Features
Clasts are smooth to touch, Easily splits into thin plates
Acidic in nature, Available in lots of colors
Archaeological Significance
Monuments
Not Yet Used
Not Yet Used
Famous Monuments
Not Applicable
Not Applicable
Sculpture
Not Yet Used
Not Yet Used
Famous Sculptures
Not Applicable
Not Applicable
Pictographs
Used
Not Used
Petroglyphs
Used
Not Used
Figurines
Not Yet Used
Not Yet Used
Types of Gossan and Rhyolite
Some rocks according to their use or texture are classified into different types. Know more about Gossan Texture and Rhyolite Texture. Types of Gossan are Translocated gossan and Leakage gossan whereas the types of Rhyolite are Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks..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. Gossan was used to create pictographs whereas Rhyolite is not used to create 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. Gossan was used to create petroglyphs whereas Rhyolite was not used to create petroglyphs.