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Hornfels vs Basanite 


Basanite  vs Hornfels


Definition

Definition
Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock   
Basanite is a black basaltic rock which mainly contains plagioclase, augite, olivine and nepheline and is formerly used as a touchstone   

History
  
  

Origin
New Zealand   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From German which means hornstone   
From Latin basanites + -ite   

Class
Metamorphic Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Soft Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Not Applicable   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Granular, Platy   
Aphanitic to Porphyritic   

Color
Brown, Dark Greenish - Grey, Green, Reddish Brown   
Black, Brown, Green, Grey, Red, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
No   
Yes   

Acid Resistant
No   
Yes   

Appearance
Dull   
Glassy or Pearly   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Flooring, Homes, Interior Decoration   
Decorative Aggregates, Homes   

Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone   
As Building Stone, Garden Decoration, Office Buildings   

Other Architectural Uses
Curbing   
Whetstones   

Industry
  
  

Construction Industry
for Road Aggregate, Roadstone   
Arrowheads, Construction Aggregate, Cutting Tool, Spear Points   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments   
Artifacts, Monuments   

Other Uses
  
  

Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork   
As a touchstone, Creating Artwork, Gemstone, In fire-starting tools, Manufacture of tools, Metallurgical Flux, Jewelry, To ignite fire, Used in flintlock firearms   

Types

Types
Biotite hornfels   
Nepheline-Basanite, Analcite-Basanite and Leucite-Basanite   

Features
Smooth to touch   
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate, Used as a touchstone   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

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   

Fossils
Absent   
Absent   

Formation

Formation
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Hornfels is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.   
Basanite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes.   

Composition
  
  

Mineral Content
Andalusite   
Augite, Feldspar, Ilmenite, Olivine, Plagioclase   

Compound Content
Fe, Mg   
Potassium Oxide, Sodium Oxide, Silicon Dioxide   

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering   
Chemical Weathering, Mechanical Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion   
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
2-3   
7   

Grain Size
Fine Grained   
Fine Grained   

Fracture
Conchoidal   
Uneven, Splintery or Conchoidal   

Streak
Unknown   
White   

Porosity
Highly Porous   
Highly Porous   

Luster
Shiny   
Waxy and Dull   

Compressive Strength
5.80 N/mm2   
31
Not Available   

Cleavage
Perfect   
Non-Existent   

Toughness
Not Yet Found   
1.5   

Specific Gravity
3.4-3.9   
2.5-2.8   

Transparency
Opaque   
Translucent to Opaque   

Density
0.25-0.30 g/cm3   
2.7 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K   
15
0.74 kJ/Kg K   
19

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant   
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand   
Not Yet Found   

Africa
Cameroon, East Africa, Tanzania, Western Africa   
Uganda   

Europe
United Kingdom   
Germany, Hungary, Italy, Spain   

Others
Not Yet Found   
Greenland, Mid-Atlantic Ridge   

Deposits in Western Continents
  
  

North America
Canada, USA   
USA   

South America
Bolivia, Brazil, Colombia, Ecuador   
Bolivia, Brazil   

Deposits in Oceania Continent
  
  

Australia
New South Wales, New Zealand, Queensland, Western Australia   
New South Wales, New Zealand, Queensland, South Australia, Western Australia   

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Hornfels vs Basanite  Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Hornfels and Basanite  Reserves. Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. Basanite is a black basaltic rock which mainly contains plagioclase, augite, olivine and nepheline and is formerly used as a touchstone. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Hornfels vs Basanite  information and Hornfels vs Basanite  characteristics in the upcoming sections.

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Hornfels vs Basanite  Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Hornfels vs Basanite  characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Hornfels and Properties of Basanite . Learn more about Hornfels vs Basanite  in the next section. The interior uses of Hornfels include Decorative aggregates, Flooring, Homes and Interior decoration whereas the interior uses of Basanite  include Decorative aggregates and Homes. Due to some exceptional properties of Hornfels and Basanite , they have various applications in construction industry. The uses of Hornfels in construction industry include For road aggregate, Roadstone and that of Basanite  include Arrowheads, Construction aggregate, Cutting tool, Spear points.

More about Hornfels and Basanite 

Here you can know more about Hornfels and Basanite . The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Hornfels and Basanite  consists of mineral content and compound content. The mineral content of Hornfels includes Andalusite and mineral content of Basanite  includes Augite, Feldspar, Ilmenite, Olivine, Plagioclase. You can also check out the list of all Metamorphic Rocks. When we have to compare Hornfels vs Basanite , the texture, color and appearance plays an important role in determining the type of rock. Hornfels is available in brown, dark greenish - grey, green, reddish brown colors whereas, Basanite  is available in black, brown, green, grey, red, white colors. Appearance of Hornfels is Dull and that of Basanite  is Glassy or Pearly. Properties of rock is another aspect for Hornfels vs Basanite . The hardness of Hornfels is 2-3 and that of Basanite  is 7. The types of Hornfels are Biotite hornfels whereas types of Basanite  are Nepheline-Basanite, Analcite-Basanite and Leucite-Basanite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Hornfels is unknown while that of Basanite  is white. The specific heat capacity of Hornfels is 0.84 kJ/Kg K and that of Basanite  is 0.74 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Hornfels is heat resistant, impact resistant, pressure resistant whereas Basanite  is heat resistant, impact resistant, pressure resistant, wear resistant.

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