Hornfels meaning

Hornfels is a metamorphic rock formed by the alteration of preexisting rock by heat and pressure.


Hornfels definitions

Word backwards slefnroh
Part of speech Hornfels is a noun.
Syllabic division horn-fels
Plural The plural of the word "hornfels" is "hornfelses" or "hornfelsen."
Total letters 8
Vogais (2) o,e
Consonants (6) h,r,n,f,l,s

Hornfels is a metamorphic rock that is formed by the heat of contact metamorphism without the presence of significant pressures. This rock typically forms near the contact zone of intrusive igneous rocks, where the heat from the magma alters the surrounding rocks.

One of the key characteristics of hornfels is its fine-grained texture, often exhibiting a non-foliated appearance. The minerals within hornfels recrystallize into new minerals due to the intense heat, creating a hard, dense rock with a conchoidal fracture.

Formation of Hornfels

Hornfels is formed when pre-existing rocks such as shale, limestone, or sandstone come into contact with an igneous intrusion. The heat from the magma alters the mineralogy and texture of the rock without causing it to recrystallize into a new type of rock.

Characteristics of Hornfels

The color of hornfels varies depending on the parent rock and mineral composition. It often appears dark due to the presence of minerals like biotite, amphibole, and pyroxene. Hornfels is a very hard and durable rock, making it suitable for various construction applications.

Uses of Hornfels

Due to its durability and resistance to weathering, hornfels is often used as a decorative stone in landscaping and construction. It is commonly used as a facing stone for buildings, walls, and paving. In some cases, hornfels is also used as a road base or railroad ballast due to its strength and abrasion resistance.

In conclusion, hornfels is a metamorphic rock that forms through contact metamorphism and is known for its fine-grained texture and durability. Its unique characteristics make it a valuable material for various construction and landscaping applications.


Hornfels Examples

  1. The geologist studied the hornfels rock formation in the mountains.
  2. The construction workers used hornfels as a material for building retaining walls.
  3. The heat and pressure from the volcano caused the surrounding rocks to transform into hornfels.
  4. The hornfels quarry provided high-quality stone for the local community.
  5. The smooth texture and durability of hornfels make it a popular choice for countertops.
  6. Hornfels is known for its ability to resist weathering and erosion over time.
  7. The dark color of hornfels gives it a distinct appearance compared to other rocks.
  8. The presence of hornfels indicates the area has undergone significant geological changes.
  9. Road construction projects often use crushed hornfels as a base material for pavement.
  10. Hornfels can be found in various locations around the world, including mountain ranges and coastal cliffs.


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  • Updated 07/05/2024 - 11:56:16