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Cataclasite vs Pseudotachylite


Pseudotachylite vs Cataclasite


Definition

Definition
Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix   
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.   

History
  
  

Origin
Swiss Alps, Europe   
USA   

Discoverer
Michael Tellinger   
Unknown   

Etymology
From the Italian word cataclasi   
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.   

Class
Metamorphic Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Clastic   
Quench   

Color
Brown, Green, White, Yellow   
Black, Brown, Colourless, Green, Grey, Pink, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
Yes   

Acid Resistant
No   
Yes   

Appearance
Dull and Banded   
Dull and Soft   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate   
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts, Monuments   

Other Uses
  
  

Commercial Uses
Commemorative Tablets, Creating Artwork   
Creating Artwork, Gemstone   

Types

Types
Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite   
Not Available   

Features
Easily splits into thin plates, Is one of the oldest rock   
Host Rock for Lead   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

Sculpture
Not Yet Used   
Not Yet Used   

Famous Sculptures
Not Applicable   
Not Applicable   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Not Yet Used   
Not Yet Used   

Fossils
Absent   
Absent   

Formation

Formation
Cataclasiste rocks mainly form by pressure deep under the Earth's surface, from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.   
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Pseudotachylite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.   

Composition
  
  

Mineral Content
Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz   
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides   

Compound Content
Silicon Dioxide   
Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur   

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism   

Weathering
Yes   
No   

Types of Weathering
Mechanical Weathering   
Not Applicable   

Erosion
Yes   
No   

Types of Erosion
Coastal Erosion, Wind Erosion   
Not Applicable   

Properties

Physical Properties
  
  

Hardness
3-4   
7   

Grain Size
Fine Grained   
Very fine-grained   

Fracture
NA   
Uneven   

Streak
Black   
Light to dark brown   

Porosity
Less Porous   
Less Porous   

Luster
Vitreous   
Vitreous   

Compressive Strength
Not Available   
60.00 N/mm2   
25

Cleavage
Not Available   
Irregular   

Toughness
Not Available   
Not Available   

Specific Gravity
2.1   
2.46-2.86   

Transparency
Translucent to Opaque   
Transparent to Translucent   

Density
2.9-3.1 g/cm3   
2.7-2.9 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.92 kJ/Kg K   
10

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant   
Heat Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Russia, Saudi Arabia, South Korea   
South Korea   

Africa
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa   
Western Africa   

Europe
England, Finland, France, Spain, United Kingdom   
Great Britain, Switzerland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
Not Yet Found   

South America
Argentina, Colombia   
Not Yet Found   

Deposits in Oceania Continent
  
  

Australia
Central Australia, Western Australia   
Central Australia, Western Australia   

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Cataclasite vs Pseudotachylite 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 Cataclasite and Pseudotachylite Reserves. Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix. Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. 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 Cataclasite vs Pseudotachylite information and Cataclasite vs Pseudotachylite characteristics in the upcoming sections.

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Cataclasite vs Pseudotachylite 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. Cataclasite vs Pseudotachylite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Cataclasite and Properties of Pseudotachylite. Learn more about Cataclasite vs Pseudotachylite in the next section. The interior uses of Cataclasite include Decorative aggregates and Homes whereas the interior uses of Pseudotachylite include Decorative aggregates, Entryways and Interior decoration. Due to some exceptional properties of Cataclasite and Pseudotachylite, they have various applications in construction industry. The uses of Cataclasite in construction industry include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate and that of Pseudotachylite include As dimension stone, Cement manufacture, For road aggregate, Making natural cement.

More about Cataclasite and Pseudotachylite

Here you can know more about Cataclasite and Pseudotachylite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Cataclasite and Pseudotachylite consists of mineral content and compound content. The mineral content of Cataclasite includes Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz and mineral content of Pseudotachylite includes Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides. You can also check out the list of all Metamorphic Rocks. When we have to compare Cataclasite vs Pseudotachylite, the texture, color and appearance plays an important role in determining the type of rock. Cataclasite is available in brown, green, white, yellow colors whereas, Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors. Appearance of Cataclasite is Dull and Banded and that of Pseudotachylite is Dull and Soft. Properties of rock is another aspect for Cataclasite vs Pseudotachylite. The hardness of Cataclasite is 3-4 and that of Pseudotachylite is 7. The types of Cataclasite are Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite whereas types of Pseudotachylite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Cataclasite is black while that of Pseudotachylite is light to dark brown. The specific heat capacity of Cataclasite is Not Available and that of Pseudotachylite 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.Cataclasite is heat resistant, impact resistant, pressure resistant whereas Pseudotachylite is heat resistant.

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