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Eclogite vs Argillite


Argillite vs Eclogite


Definition

Definition
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature   
Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate   

History
  
  

Discoverer
René Just Haüy   
Unknown   

Etymology
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1   
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite   

Class
Metamorphic Rocks   
Sedimentary Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Soft Rock   

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Earthy   
Clastic, Polished   

Color
Black, Brown, Colourless, Green, Grey, Pink, White   
Dark Grey to Black, Pink, Red, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
Yes   
Yes   

Acid Resistant
No   
Yes   

Appearance
Dull, Banded and Foilated   
Rough and Dull   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing, Whetstones   

Industry
  
  

Construction Industry
Not Yet Used   
Used for flooring, stair treads, borders and window sills.   

Medical Industry
In Chemical and Pharmaceutical Industry, Medicines and Cosmetics   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone   
Fire resistant, Used to manufracture paperweights and bookends   

Types

Types
Not Available   
Not Available   

Features
Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock   
Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

Sculpture
Not Yet Used   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Not Yet Used   
Used   

Fossils
Absent   
Present   

Formation

Formation
Eclogite forms from high-pressure metamorphism of mafic igneous rocks mainly, basalt or gabbro as it plunges into the mantle in a subduction zone.   
An argillite is a fine-grained sedimentary rock mainly composed of clay particles which forms from lithified muds which contain variable amounts of silt-sized particles.   

Composition
  
  

Mineral Content
Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite   
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz   

Compound Content
Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium   
Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide   

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

Weathering
Yes   
Yes   

Types of Weathering
Mechanical Weathering   
Biological Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Sea Erosion   
Chemical Erosion   

Properties

Physical Properties
  
  

Hardness
3.5-4   
2-3   

Grain Size
Fine Grained   
Fine Grained   

Fracture
Not Available   
Conchoidal to Uneven   

Streak
White   
White to Grey   

Porosity
Less Porous   
Highly Porous   

Luster
Subvitreous to Dull   
Waxy and Dull   

Cleavage
Perfect   
Slaty   

Toughness
Not Available   
2.6   

Specific Gravity
2.86-2.87   
2.56-2.68   

Transparency
Opaque   
Opaque   

Density
3.2-3.6 g/cm3   
2.54-2.66 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.87 kJ/Kg K   
14

Resistance
Heat Resistant   
Heat Resistant, Impact Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey   
Bangladesh, China, India, Russia   

Africa
Ethiopia, Morocco, South Africa   
Ethiopia, Kenya, Morocco, South Africa, Tanzania   

Europe
France, Germany, Italy, Norway, Scotland   
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland   

Others
Greenland   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, Costa Rica, Panama, USA   
USA   

South America
Argentina, Brazil, Colombia, Ecuador   
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela   

Deposits in Oceania Continent
  
  

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

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Eclogite vs Argillite 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 Eclogite and Argillite Reserves. Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature. Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate. 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 Eclogite vs Argillite information and Eclogite vs Argillite characteristics in the upcoming sections.

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Eclogite vs Argillite 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. Eclogite vs Argillite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Eclogite and Properties of Argillite. Learn more about Eclogite vs Argillite in the next section. The interior uses of Eclogite include Decorative aggregates and Interior decoration whereas the interior uses of Argillite include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Eclogite and Argillite, they have various applications in construction industry. The uses of Eclogite in construction industry include Not yet used and that of Argillite include Used for flooring, stair treads, borders and window sills..

More about Eclogite and Argillite

Here you can know more about Eclogite and Argillite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Eclogite and Argillite consists of mineral content and compound content. The mineral content of Eclogite includes Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite and mineral content of Argillite includes Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz. You can also check out the list of all Metamorphic Rocks. When we have to compare Eclogite vs Argillite, the texture, color and appearance plays an important role in determining the type of rock. Eclogite is available in black, brown, colourless, green, grey, pink, white colors whereas, Argillite is available in dark grey to black, pink, red, white colors. Appearance of Eclogite is Dull, Banded and Foilated and that of Argillite is Rough and Dull. Properties of rock is another aspect for Eclogite vs Argillite. The hardness of Eclogite is 3.5-4 and that of Argillite is 2-3. The types of Eclogite are Not Available whereas types of Argillite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Eclogite is white while that of Argillite is white to grey. The specific heat capacity of Eclogite is Not Available and that of Argillite is 0.87 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Eclogite is heat resistant whereas Argillite is heat resistant, impact resistant.

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