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Schist vs Mudstone


Mudstone vs Schist


Definition

Definition
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation  
Mudstone is a fine-grained, dark gray sedimentary rock, which is formed from silt and clay and is similar to shale but has less laminations  

History
  
  

Origin
-  
-  

Discoverer
Unknown  
William Smith  

Etymology
From French schiste, Greek skhistos i.e. split  
From the English mud and stone, from low German mudde and stainaz  

Class
Metamorphic Rocks  
Sedimentary Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Foliated, Platy  
Clastic  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
No  
No  

Stain Resistant
No  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Layered and Shiny  
Rough and Dull  

Uses

Architecture
  
  

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

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

Other Architectural Uses
-  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone  
Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar  

Medical Industry
-  
-  

Antiquity Uses
Artifacts  
Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Used in aquariums, Writing Slates  
Creating Artwork, Pottery  

Types

Types
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.  
Marl, Shale and Argillite  

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

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Present  

Formation

Formation
Schist formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.  
Mudstone forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are buried and compacted by overlying sediment hence forming mudstone.  

Composition
  
  

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

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

Transformation
  
  

Metamorphism
No  
No  

Types of Metamorphism
-  
-  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion  
Chemical Erosion, Sea Erosion  

Properties

Physical Properties
  
  

Hardness
3.5-4  
2-3  

Grain Size
Medium to Fine Coarse Grained  
Very fine-grained  

Fracture
Conchoidal  
-  

Streak
White  
White  

Porosity
Highly Porous  
Highly Porous  

Luster
Shiny  
Dull  

Compressive Strength
150.00 N/mm2  
22
25.00 N/mm2  
99+

Cleavage
Slaty  
Perfect  

Toughness
1.5  
2.6  

Specific Gravity
2.5-2.9  
2.2-2.8  

Transparency
Opaque  
Opaque  

Density
2.8-2.9 g/cm3  
2.4-2.8 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.70 kJ/Kg K  
24
0.39 kJ/Kg K  
30

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

Reserves

Deposits in Eastern Continents
  
  

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

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

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

Others
-  
-  

Deposits in Western Continents
  
  

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

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

Deposits in Oceania Continent
  
  

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

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Schist vs Mudstone 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 Schist and Mudstone Reserves. Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. Mudstone is a fine-grained, dark gray sedimentary rock, which is formed from silt and clay and is similar to shale but has less laminations. 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 Schist vs Mudstone information and Schist vs Mudstone characteristics in the upcoming sections.

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

More about Schist and Mudstone

Here you can know more about Schist and Mudstone. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Schist and Mudstone consists of mineral content and compound content. The mineral content of Schist includes Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc and mineral content of Mudstone includes Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz. You can also check out the list of all Metamorphic Rocks. When we have to compare Schist vs Mudstone, the texture, color and appearance plays an important role in determining the type of rock. Schist is available in black, blue, brown, dark brown, green, grey, silver colors whereas, Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. Appearance of Schist is Layered and Shiny and that of Mudstone is Rough and Dull. Properties of rock is another aspect for Schist vs Mudstone. The hardness of Schist is 3.5-4 and that of Mudstone is 2-3. The types of Schist are Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist. whereas types of Mudstone are Marl, Shale and Argillite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Schist and Mudstone is white. The specific heat capacity of Schist is 0.70 kJ/Kg K and that of Mudstone is 0.39 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Schist is impact resistant, pressure resistant, water resistant whereas Mudstone is heat resistant, impact resistant.

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