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Claystone vs Schist


Schist vs Claystone


Definition

Definition
Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay  
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation  

History
  
  

Origin
-  
-  

Discoverer
Unknown  
Unknown  

Etymology
From English clay and stone as the rock contains more amount of clay  
From French schiste, Greek skhistos i.e. split  

Class
Sedimentary Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Clastic  
Foliated, Platy  

Color
Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow  
Black, Blue, Brown, Dark Brown, Green, Grey, Silver  

Maintenance
More  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
No  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Rough and Dull  
Layered and Shiny  

Uses

Architecture
  
  

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

Exterior Uses
As Facing Stone, Roof Tiles  
Garden Decoration, Paving Stone  

Other Architectural Uses
Curbing  
-  

Industry
  
  

Construction Industry
As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar  
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Sculpture, Small Figurines  
Artifacts  

Other Uses
  
  

Commercial Uses
Pottery  
Used in aquariums, Writing Slates  

Types

Types
Claystone  
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.  

Features
Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock  
Easily splits into thin plates, Smooth to touch  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Present  
Absent  

Formation

Formation
Claystone is generally quite soft, but can be hard and brittle. It forms due to weathering of mudstone.  
Schist formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.  

Composition
  
  

Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz  
Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc  

Compound Content
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, MgO, Silicon Dioxide  
CaO, Carbon Dioxide, MgO  

Transformation
  
  

Metamorphism
No  
No  

Types of 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
Coastal Erosion, Water Erosion  
Chemical Erosion, Coastal Erosion, Glacier Erosion  

Properties

Physical Properties
  
  

Hardness
3.5-4  
3.5-4  

Grain Size
Fine Grained  
Medium to Fine Coarse Grained  

Fracture
-  
Conchoidal  

Streak
White  
White  

Porosity
Very Less Porous  
Highly Porous  

Luster
Dull  
Shiny  

Compressive Strength
40.00 N/mm2  
40
150.00 N/mm2  
22

Cleavage
Perfect  
Slaty  

Toughness
2.6  
1.5  

Specific Gravity
0  
2.5-2.9  

Transparency
Opaque  
Opaque  

Density
2-2.9 g/cm3  
2.8-2.9 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K  
10
0.70 kJ/Kg K  
24

Resistance
Heat Resistant, Impact Resistant  
Impact Resistant, Pressure Resistant, Water Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, China, India, Russia  
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam  

Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania  
Egypt, Ethiopia, Morocco, Nigeria, South Africa  

Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland  
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

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

South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela  
Brazil, Colombia, Guyana  

Deposits in Oceania Continent
  
  

Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia  
New South Wales, New Zealand, Queensland  

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Claystone vs Schist 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 Claystone and Schist Reserves. Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay. Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. 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 Claystone vs Schist information and Claystone vs Schist characteristics in the upcoming sections.

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Claystone vs Schist 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. Claystone vs Schist characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Claystone and Properties of Schist. Learn more about Claystone vs Schist in the next section. The interior uses of Claystone include Decorative aggregates, Entryways, Floor tiles, Homes and Interior decoration whereas the interior uses of Schist include Decorative aggregates, Floor tiles and Interior decoration. Due to some exceptional properties of Claystone and Schist, they have various applications in construction industry. The uses of Claystone in construction industry include As a sintering agent in steel industry to process iron ore, Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar and that of Schist include As dimension stone, Building houses or walls, Cement manufacture, For road aggregate, Roadstone.

More about Claystone and Schist

Here you can know more about Claystone and Schist. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Claystone and Schist consists of mineral content and compound content. The mineral content of Claystone includes Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz and mineral content of Schist includes Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc. You can also check out the list of all Sedimentary Rocks. When we have to compare Claystone vs Schist, the texture, color and appearance plays an important role in determining the type of rock. Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas, Schist is available in black, blue, brown, dark brown, green, grey, silver colors. Appearance of Claystone is Rough and Dull and that of Schist is Layered and Shiny. Properties of rock is another aspect for Claystone vs Schist. Hardness of Claystone and Schist is 3.5-4. The types of Claystone are Claystone whereas types of Schist are Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Claystone and Schist is white. The specific heat capacity of Claystone is 0.92 kJ/Kg K and that of Schist is 0.70 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Claystone is heat resistant, impact resistant whereas Schist is impact resistant, pressure resistant, water resistant.

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