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Hornfels
Hornfels

Porphyry
Porphyry



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Hornfels
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Porphyry

Hornfels and Porphyry Types and Facts

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1 Types
1.1 Types
Biotite hornfels
Rhomb Porphyry
1.2 Features
Smooth to touch
Generally rough to touch, Is one of the oldest rock, Surfaces are often shiny
1.3 Archaeological Significance
1.3.1 Monuments
Used
Used
1.3.2 Famous Monuments
Data Not Available
Data Not Available
1.3.3 Sculpture
Not Yet Used
Used
1.3.4 Famous Sculptures
Not Applicable
Data Not Available
1.3.5 Pictographs
Used
Not Used
1.3.6 Petroglyphs
Used
Not Used
1.3.7 Figurines
Not Yet Used
Used
1.4 Fossils
Absent
Absent

Types of Hornfels and Porphyry

Some rocks according to their use or texture are classified into different types. Know more about Hornfels Texture and Porphyry Texture. Types of Hornfels are Biotite hornfels whereas the types of Porphyry are Rhomb Porphyry.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. Hornfels was used to create pictographs whereas Porphyry 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. Hornfels was used to create petroglyphs whereas Porphyry was not used to create petroglyphs.