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Shonkinite and Cataclasite


Cataclasite and Shonkinite


Definition

Definition
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents  
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  

History
  
  

Origin
USA  
Swiss Alps, Europe  

Discoverer
Unknown  
Michael Tellinger  

Etymology
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US  
From the Italian word cataclasi  

Class
Igneous Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Earthy  
Clastic  

Color
Brown, Buff, Cream, Green, Grey, Pink, White  
Brown, Green, White, Yellow  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Banded and Foilated  
Dull and Banded  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories  
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Creating Artwork  
Commemorative Tablets, Creating Artwork  

Types

Types
Igneous rock  
Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite  

Features
Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable  
Easily splits into thin plates, Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Shonkinites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.   
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.  

Composition
  
  

Mineral Content
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz  
Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz  

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide  
Silicon Dioxide  

Transformation
  
  

Metamorphism
Yes  
No  

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

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion, Sea Erosion, Water Erosion  
Coastal Erosion, Wind Erosion  

Properties

Physical Properties
  
  

Hardness
5.5-6  
3-4  

Grain Size
Medium to Fine Coarse Grained  
Fine Grained  

Fracture
-  
-  

Streak
White  
Black  

Porosity
Less Porous  
Less Porous  

Luster
Subvitreous to Dull  
Vitreous  

Compressive Strength
150.00 N/mm2  
22
50.00 N/mm2  
39

Cleavage
Perfect  
-  

Toughness
-  
-  

Specific Gravity
2.6-2.7  
2.1  

Transparency
Opaque  
Translucent to Opaque  

Density
2.6-2.8 g/cm3  
2.9-3.1 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K  
10
0.84 kJ/Kg K  
15

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam  
China, India, Russia, Saudi Arabia, South Korea  

Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa  
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa  

Europe
Bulgaria, England, Germany, Norway, Romania, Switzerland  
England, Finland, France, Spain, United Kingdom  

Others
-  
-  

Deposits in Western Continents
  
  

North America
USA  
Canada, USA  

South America
Brazil, Chile  
Argentina, Colombia  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Queensland, South Australia, Western Australia  
Central Australia, Western Australia  

Summary >>
<< Reserves

All about Shonkinite and Cataclasite Properties

Know all about Shonkinite and Cataclasite properties here. All properties of rocks are important as they define the type of rock and its application. Shonkinite belongs to Igneous Rocks while Cataclasite belongs to Metamorphic Rocks.Texture of Shonkinite is Earthy whereas that of Cataclasite is Clastic. Shonkinite appears Banded and Foilated and Cataclasite appears Dull and Banded. The luster of Shonkinite is subvitreous to dull while that of Cataclasite is vitreous. Shonkinite is available in brown, buff, cream, green, grey, pink, white colors whereas Cataclasite is available in brown, green, white, yellow colors. The commercial uses of Shonkinite are cemetery markers, creating artwork and that of Cataclasite are commemorative tablets, creating artwork.

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