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Harzburgite vs Skarn


Skarn vs Harzburgite


Definition

Definition
Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine   
Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin   

History
  
  

Origin
Germany   
USA, Australia   

Discoverer
Unknown   
Tornebohm   

Etymology
From the name of a town in Harzburg, Germany   
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.   

Class
Igneous Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture

Texture
Phaneritic   
Earthy, Mud-rich, Rough   

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

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
No   

Wind Resistant
Yes   
Yes   

Acid Resistant
No   
Yes   

Appearance
Rough and Shiny   
Dull   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones   
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Gold and Silver production, Manufacture of Magnesium and Dolomite Refractories   

Medical Industry
Not Yet Used   
Not Applicable   

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds   
Creating Artwork, Gemstone, Jewelry, Metallurgical Flux, Source of Magnesia (MgO)   

Types

Types
Not Available   
Endoskarns   

Features
Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock   
Host Rock for Lead, Zinc and Copper Deposits   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
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.   
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Skarn is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.   

Composition
  
  

Mineral Content
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene   
Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite   

Compound Content
Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide   
Au, CaO, Carbon Dioxide, Cu, Fe, MgO   

Transformation
  
  

Metamorphism
Yes   
Yes   

Types of Metamorphism
Impact Metamorphism   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism   

Weathering
Yes   
No   

Types of Weathering
Chemical Weathering, Mechanical Weathering   
Not Applicable   

Erosion
Yes   
No   

Types of Erosion
Chemical Erosion, Sea Erosion   
Not Applicable   

Properties

Physical Properties
  
  

Hardness
5.5-6   
6.5   

Grain Size
Coarse Grained   
Fine Grained   

Fracture
Irregular   
Irregular   

Streak
White   
Light to dark brown   

Porosity
Less Porous   
Less Porous   

Luster
Shiny   
Waxy and Dull   

Cleavage
Imperfect   
Slaty   

Toughness
2.1   
2.4   

Specific Gravity
3-3.01   
2.86   

Transparency
Translucent to Opaque   
Opaque   

Density
3.1-3.4 g/cm3   
2.8-2.9 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
1.25 kJ/Kg K   
6
0.92 kJ/Kg K   
10

Resistance
Heat Resistant, Pressure Resistant, Wear Resistant   
Heat Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Japan, Oman   
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka   

Africa
South Africa   
South Africa, Western Africa   

Europe
France, Germany, Italy, Venezuela   
United Kingdom   

Others
Hawaii Islands, Mid-Atlantic Ridge   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
Canada   

South America
Not Yet Found   
Brazil, Colombia, Paraguay   

Deposits in Oceania Continent
  
  

Australia
Not Yet Found   
Central Australia, Western Australia   

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Harzburgite vs Skarn 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 Skarn Reserves. Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine. Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin. 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 Skarn information and Harzburgite vs Skarn characteristics in the upcoming sections.

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Harzburgite vs Skarn 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 Skarn characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Harzburgite and Properties of Skarn. Learn more about Harzburgite vs Skarn in the next section. The interior uses of Harzburgite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Skarn include Decorative aggregates, Entryways and Interior decoration. Due to some exceptional properties of Harzburgite and Skarn, they have various applications in construction industry. The uses of Harzburgite in construction industry include As dimension stone, Cobblestones and that of Skarn include As a flux in the production of steel and pig iron, As a sintering agent in steel industry to process iron ore, As dimension stone, Gold and silver production, Manufacture of magnesium and dolomite refractories.

More about Harzburgite and Skarn

Here you can know more about Harzburgite and Skarn. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Harzburgite and Skarn 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 Skarn includes Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite. You can also check out the list of all Igneous Rocks. When we have to compare Harzburgite vs Skarn, the texture, color and appearance plays an important role in determining the type of rock. Harzburgite is available in dark greenish - grey colors whereas, Skarn is available in black, brown, colourless, green, grey, white colors. Appearance of Harzburgite is Rough and Shiny and that of Skarn is Dull. Properties of rock is another aspect for Harzburgite vs Skarn. The hardness of Harzburgite is 5.5-6 and that of Skarn is 6.5. The types of Harzburgite are Not Available whereas types of Skarn are Endoskarns. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Harzburgite is white while that of Skarn is light to dark brown. The specific heat capacity of Harzburgite is 1.25 kJ/Kg K and that of Skarn is 0.92 kJ/Kg K. 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 Skarn is heat resistant.

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