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Mylonite vs Peridotite


Peridotite vs Mylonite


Definition

Definition
Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism   
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle   

History
  
  

Origin
New Zealand   
Pike County, U.S   

Discoverer
Unknown   
Unknown   

Etymology
From Greek mulōn mill + -ite   
From French, from peridot +‎ -ite   

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
Foliated   
Phaneritic   

Color
Black to Grey   
Dark Greenish - Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Dull, Banded and Foilated   
Rough and Shiny   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
for Road Aggregate, Landscaping, Roadstone   
As Dimension Stone, Cobblestones   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments   
Monuments, Sculpture, Small Figurines   

Other Uses
  
  

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

Types

Types
Blastomylonites, Ultramylonites and Phyllonites   
Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite   

Features
Surfaces are often shiny   
Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock   

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   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Mylonites are ductilely deformed rocks formed by the accumulation of large shear strain, in ductile fault zones.   
Peridotites can be formed in two ways: as mantle rocks formed during the accretion and differentiation of the Earth or as cumulate rocks formed by precipitation of olivine and pyroxenes from basaltic magmas.   

Composition
  
  

Mineral Content
Porphyroblasts   
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene   

Compound Content
Aluminium Oxide, Calcium Sulfate, Chromium(III) Oxide, Iron(III) Oxide, Magnesium Carbonate, Silicon Dioxide   
Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide   

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
3-4   
5.5-6   

Grain Size
Fine Grained   
Coarse Grained   

Fracture
Conchoidal   
Irregular   

Streak
White   
White   

Porosity
Highly Porous   
Less Porous   

Luster
Shiny   
Shiny   

Compressive Strength
1.28 N/mm2   
32
107.55 N/mm2   
19

Cleavage
Conchoidal   
Imperfect   

Toughness
Not Available   
2.1   

Specific Gravity
2.97-3.05   
3-3.01   

Transparency
Opaque   
Translucent to Opaque   

Density
2.6-4.8 g/cm3   
3.1-3.4 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
1.50 kJ/Kg K   
3
1.26 kJ/Kg K   
5

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant   
Heat Resistant, Pressure Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Indonesia, Saudi Arabia, South Korea   
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey   

Africa
Eritrea, Ethiopia, Ghana, South Africa, Western Africa   
Morocco, South Africa   

Europe
England, Finland, France, Germany, Great Britain, Greece, United Kingdom   
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland, Venezuela   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Not Yet Found   
Brazil   

Deposits in Oceania Continent
  
  

Australia
Central Australia, Western Australia   
New Zealand, Western Australia   

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Mylonite vs Peridotite 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 Mylonite and Peridotite Reserves. Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism. Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle. 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 Mylonite vs Peridotite information and Mylonite vs Peridotite characteristics in the upcoming sections.

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Mylonite vs Peridotite 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. Mylonite vs Peridotite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Mylonite and Properties of Peridotite. Learn more about Mylonite vs Peridotite in the next section. The interior uses of Mylonite include Decorative aggregates and Interior decoration whereas the interior uses of Peridotite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Mylonite and Peridotite, they have various applications in construction industry. The uses of Mylonite in construction industry include For road aggregate, Landscaping, Roadstone and that of Peridotite include As dimension stone, Cobblestones.

More about Mylonite and Peridotite

Here you can know more about Mylonite and Peridotite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Mylonite and Peridotite consists of mineral content and compound content. The mineral content of Mylonite includes Porphyroblasts and mineral content of Peridotite 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 Mylonite vs Peridotite, the texture, color and appearance plays an important role in determining the type of rock. Mylonite is available in black to grey colors whereas, Peridotite is available in dark greenish - grey colors. Appearance of Mylonite is Dull, Banded and Foilated and that of Peridotite is Rough and Shiny. Properties of rock is another aspect for Mylonite vs Peridotite. The hardness of Mylonite is 3-4 and that of Peridotite is 5.5-6. The types of Mylonite are Blastomylonites, Ultramylonites and Phyllonites whereas types of Peridotite are Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Mylonite and Peridotite is white. The specific heat capacity of Mylonite is 1.50 kJ/Kg K and that of Peridotite is 1.26 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Mylonite is heat resistant, impact resistant, pressure resistant whereas Peridotite is heat resistant, pressure resistant, wear resistant.

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