Pegmatite and Hyaloclastite Types and Facts
Types
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite
  
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff and Andesitic tuff.
  
Features
Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz
  
Always found as volcanic pipes over deep continental crust
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Used
  
Famous Monuments
Not Applicable
  
Data Not Available
  
Sculpture
Used
  
Used
  
Famous Sculptures
Data Not Available
  
Data Not Available
  
Pictographs
Not Used
  
Used
  
Petroglyphs
Not Used
  
Used
  
Figurines
Used
  
Used
  
Fossils
Absent
  
Absent
  
Types of Pegmatite and Hyaloclastite
Some rocks according to their use or texture are classified into different types. Know more about Pegmatite Texture and Hyaloclastite Texture. Types of Pegmatite are Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite whereas the types of Hyaloclastite are Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff and Andesitic tuff..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. Pegmatite was not used to create pictographs whereas Hyaloclastite is 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. Pegmatite was not used to create petroglyphs whereas Hyaloclastite was used to create petroglyphs.