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Blueschist vs Eclogite


Eclogite vs Blueschist


Definition

Definition
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature   
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature   

History
  
  

Origin
USA   
Unknown   

Discoverer
Edgar Bailey   
René Just Haüy   

Etymology
From French schiste, Greek skhistos i.e. split   
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1   

Class
Metamorphic Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Foliated   
Earthy   

Color
Blue, Bluish - Grey, Purple, Shades of Blue   
Black, Brown, Colourless, Green, Grey, Pink, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
No   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
No   
Yes   

Acid Resistant
No   
No   

Appearance
Dull and Banded   
Dull, Banded and Foilated   

Uses

Architecture
  
  

Interior Uses
Floor Tiles, Flooring, Homes, Hotels, Kitchens   
Decorative Aggregates, Interior Decoration   

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

Other Architectural Uses
Not Yet Used   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone   
Not Yet Used   

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

Antiquity Uses
Artifacts, Monuments, Sculpture   
Artifacts   

Other Uses
  
  

Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Tombstones   
Creating Artwork, Gemstone   

Types

Types
Not Available   
Not Available   

Features
Has High structural resistance against erosion and climate, Very fine grained rock   
Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Used   
Not Yet Used   

Famous Monuments
Data Not Available   
Not Applicable   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Not Yet Used   

Fossils
Absent   
Absent   

Formation

Formation
Blueschist forms due to the metamorphism of basalt and other rocks with similar composition at high pressures and low temperatures and approximately corresponding to a depth of 15 to 30 kilometers and 200 to 500 °C.   
Eclogite forms from high-pressure metamorphism of mafic igneous rocks mainly, basalt or gabbro as it plunges into the mantle in a subduction zone.   

Composition
  
  

Mineral Content
Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz   
Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite   

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide   
Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium   

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

Weathering
Yes   
Yes   

Types of Weathering
Mechanical Weathering   
Mechanical Weathering   

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
3.5-4   
3.5-4   

Grain Size
Fine to Medium Grained   
Fine Grained   

Fracture
Conchoidal   
Not Available   

Streak
White to Grey   
White   

Porosity
Highly Porous   
Less Porous   

Luster
Dull   
Subvitreous to Dull   

Cleavage
Slaty   
Perfect   

Toughness
1.5   
Not Available   

Specific Gravity
3-3.2   
2.86-2.87   

Transparency
Opaque   
Opaque   

Density
2.8-2.9 g/cm3   
3.2-3.6 g/cm3   

Thermal Properties
  
  

Resistance
Impact Resistant, Pressure Resistant   
Heat Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Japan, Turkey   
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey   

Africa
Egypt, Ethiopia, South Africa   
Ethiopia, Morocco, South Africa   

Europe
France, Greece, Iceland   
France, Germany, Italy, Norway, Scotland   

Others
Not Yet Found   
Greenland   

Deposits in Western Continents
  
  

North America
USA   
Canada, Costa Rica, Panama, USA   

South America
Not Yet Found   
Argentina, Brazil, Colombia, Ecuador   

Deposits in Oceania Continent
  
  

Australia
New Zealand   
Central Australia, New Zealand, Queensland   

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Blueschist vs Eclogite 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 Blueschist and Eclogite Reserves. Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature. Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature. 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 Blueschist vs Eclogite information and Blueschist vs Eclogite characteristics in the upcoming sections.

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Blueschist vs Eclogite 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. Blueschist vs Eclogite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Blueschist and Properties of Eclogite. Learn more about Blueschist vs Eclogite in the next section. The interior uses of Blueschist include Floor tiles, Flooring, Homes, Hotels and Kitchens whereas the interior uses of Eclogite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Blueschist and Eclogite, they have various applications in construction industry. The uses of Blueschist in construction industry include As dimension stone, Cobblestones, Rail track ballast, Roadstone and that of Eclogite include Not yet used.

More about Blueschist and Eclogite

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

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