Pegmatite and Hornfels Types and Facts
Types
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite
Biotite hornfels
Features
Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz
Smooth to touch
Archaeological Significance
Monuments
Not Yet Used
Used
Famous Monuments
Not Applicable
Data Not Available
Sculpture
Used
Not Yet Used
Famous Sculptures
Data Not Available
Not Applicable
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Used
Not Yet Used
Types of Pegmatite and Hornfels
Some rocks according to their use or texture are classified into different types. Know more about Pegmatite Texture and Hornfels Texture. Types of Pegmatite are Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite whereas the types of Hornfels are Biotite hornfels.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 Hornfels 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 Hornfels was used to create petroglyphs.