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Harzburgite vs Eclogite


Eclogite vs Harzburgite


Definition

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

History
  
  

Origin
Germany   
Unknown   

Discoverer
Unknown   
René Just Haüy   

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

Class
Igneous Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture

Texture
Phaneritic   
Earthy   

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

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
Yes   
Yes   

Acid Resistant
No   
No   

Appearance
Rough and Shiny   
Dull, Banded and Foilated   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones   
Not Yet Used   

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

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines   
Artifacts   

Other Uses
  
  

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

Types

Types
Not Available   
Not Available   

Features
Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest 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
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.   
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
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene   
Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite   

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

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Impact Metamorphism   
Not Applicable   

Weathering
Yes   
Yes   

Types of Weathering
Chemical Weathering, Mechanical Weathering   
Mechanical Weathering   

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
5.5-6   
3.5-4   

Grain Size
Coarse Grained   
Fine Grained   

Fracture
Irregular   
Not Available   

Streak
White   
White   

Porosity
Less Porous   
Less Porous   

Luster
Shiny   
Subvitreous to Dull   

Cleavage
Imperfect   
Perfect   

Toughness
2.1   
Not Available   

Specific Gravity
3-3.01   
2.86-2.87   

Transparency
Translucent to Opaque   
Opaque   

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

Thermal Properties
  
  

Specific Heat Capacity
1.25 kJ/Kg K   
6
Not Available   

Resistance
Heat Resistant, Pressure Resistant, Wear Resistant   
Heat Resistant   

Reserves

Deposits in Eastern Continents
  
  

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

Africa
South Africa   
Ethiopia, Morocco, South Africa   

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

Others
Hawaii Islands, Mid-Atlantic Ridge   
Greenland   

Deposits in Western Continents
  
  

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

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

Deposits in Oceania Continent
  
  

Australia
Not Yet Found   
Central Australia, New Zealand, Queensland   

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Harzburgite 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 Harzburgite and Eclogite Reserves. Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine. 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 Harzburgite vs Eclogite information and Harzburgite vs Eclogite characteristics in the upcoming sections.

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

More about Harzburgite and Eclogite

Here you can know more about Harzburgite and Eclogite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Harzburgite and Eclogite consists of mineral content and compound content. The mineral content of Harzburgite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene 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 Harzburgite vs Eclogite, the texture, color and appearance plays an important role in determining the type of rock. Harzburgite is available in dark greenish - grey colors whereas, Eclogite is available in black, brown, colourless, green, grey, pink, white colors. Appearance of Harzburgite is Rough and Shiny and that of Eclogite is Dull, Banded and Foilated. Properties of rock is another aspect for Harzburgite vs Eclogite. The hardness of Harzburgite is 5.5-6 and that of Eclogite is 3.5-4. The types of Harzburgite 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 Harzburgite and Eclogite is white. The specific heat capacity of Harzburgite is 1.25 kJ/Kg K 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.Harzburgite is heat resistant, pressure resistant, wear resistant whereas Eclogite is heat resistant.

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