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Eclogite vs Harzburgite


Harzburgite vs Eclogite


Definition

Definition
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature   
Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine   

History
  
  

Origin
Unknown   
Germany   

Discoverer
René Just Haüy   
Unknown   

Etymology
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1   
From the name of a town in Harzburg, Germany   

Class
Metamorphic Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture

Texture
Earthy   
Phaneritic   

Color
Black, Brown, Colourless, Green, Grey, Pink, White   
Dark Greenish - Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
Yes   
Yes   

Acid Resistant
No   
No   

Appearance
Dull, Banded and Foilated   
Rough and Shiny   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Not Yet Used   
As Dimension Stone, Cobblestones   

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

Antiquity Uses
Artifacts   
Artifacts, Monuments, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone   
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds   

Types

Types
Not Available   
Not Available   

Features
Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock   
Constitutes upper part of the Earth's mantle, Generally rough to touch, 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   
Absent   

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.   
Harzburgite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.   

Composition
  
  

Mineral Content
Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite   
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene   

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

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Impact Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Mechanical Weathering   
Chemical Weathering, Mechanical Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Sea Erosion   
Chemical Erosion, Sea Erosion   

Properties

Physical Properties
  
  

Hardness
3.5-4   
5.5-6   

Grain Size
Fine Grained   
Coarse Grained   

Fracture
Not Available   
Irregular   

Streak
White   
White   

Porosity
Less Porous   
Less Porous   

Luster
Subvitreous to Dull   
Shiny   

Cleavage
Perfect   
Imperfect   

Toughness
Not Available   
2.1   

Specific Gravity
2.86-2.87   
3-3.01   

Transparency
Opaque   
Translucent to Opaque   

Density
3.2-3.6 g/cm3   
3.1-3.4 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
1.25 kJ/Kg K   
6

Resistance
Heat Resistant   
Heat Resistant, Pressure Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

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

Africa
Ethiopia, Morocco, South Africa   
South Africa   

Europe
France, Germany, Italy, Norway, Scotland   
France, Germany, Italy, Venezuela   

Others
Greenland   
Hawaii Islands, Mid-Atlantic Ridge   

Deposits in Western Continents
  
  

North America
Canada, Costa Rica, Panama, USA   
Canada, USA   

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

Deposits in Oceania Continent
  
  

Australia
Central Australia, New Zealand, Queensland   
Not Yet Found   

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Eclogite vs Harzburgite 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 Harzburgite Reserves. Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature. Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine. 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 Harzburgite information and Eclogite vs Harzburgite characteristics in the upcoming sections.

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

More about Eclogite and Harzburgite

Here you can know more about Eclogite and Harzburgite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Eclogite and Harzburgite 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 Harzburgite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene. You can also check out the list of all Metamorphic Rocks. When we have to compare Eclogite vs Harzburgite, 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, Harzburgite is available in dark greenish - grey colors. Appearance of Eclogite is Dull, Banded and Foilated and that of Harzburgite is Rough and Shiny. Properties of rock is another aspect for Eclogite vs Harzburgite. The hardness of Eclogite is 3.5-4 and that of Harzburgite is 5.5-6. The types of Eclogite are Not Available whereas types of Harzburgite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Eclogite and Harzburgite is white. The specific heat capacity of Eclogite is Not Available and that of Harzburgite is 1.25 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 Harzburgite is heat resistant, pressure resistant, wear resistant.

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