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Mudstone and Metapelite


Metapelite and Mudstone


Definition

Definition
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   
Metapelite is an old and currently not widely used field geological term for a clay rich fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone   

History
  
  

Discoverer
Unknown   
Unknown   

Etymology
From the English mud and stone, from low German mudde and stainaz   
From Pelos or clay in Greek   

Class
Sedimentary Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Clastic   
Foliated   

Color
Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow   
Dark Greenish - Grey, Green, Light Green, Light Greenish Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Rough and Dull   
Banded   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar   
Cement Manufacture, Construction Aggregate, for Road Aggregate   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Sculpture, Small Figurines   
Artifacts   

Other Uses
  
  

Commercial Uses
Creating Artwork, Pottery   
Commemorative Tablets, Creating Artwork   

Types

Types
Marl, Shale and Argillite   
Not Available   

Features
Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock   
Easily splits into thin plates, It is One of the Oldest, Strongest and Hardest Rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Not Yet Used   

Famous Monuments
Not Applicable   
Not Applicable   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Not Yet Used   

Fossils
Present   
Absent   

Formation

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

Composition
  
  

Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz   
Albite, Chlorite, Quartz   

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

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
2-3   
5-6   

Grain Size
Very fine-grained   
Medium to Fine Coarse Grained   

Fracture
Not Available   
Fibrous   

Streak
White   
Unknown   

Porosity
Highly Porous   
Highly Porous   

Luster
Dull   
Earthy   

Cleavage
Perfect   
Not Available   

Toughness
2.6   
Not Available   

Specific Gravity
2.2-2.8   
3.4-3.7   

Transparency
Opaque   
Opaque   

Density
2.4-2.8 g/cm3   
0-300 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.39 kJ/Kg K   
23
0.72 kJ/Kg K   
20

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, China, India, Russia   
Not Yet Found   

Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania   
Western Africa   

Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland   
United Kingdom   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Not Available   

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

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Mudstone and Metapelite Properties

Know all about Mudstone and Metapelite properties here. All properties of rocks are important as they define the type of rock and its application. Mudstone belongs to Sedimentary Rocks while Metapelite belongs to Metamorphic Rocks.Texture of Mudstone is Clastic whereas that of Metapelite is Foliated. Mudstone appears Rough and Dull and Metapelite appears Banded. The luster of Mudstone is dull while that of Metapelite is earthy. Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas Metapelite is available in dark greenish - grey, green, light green, light greenish grey colors. The commercial uses of Mudstone are creating artwork, pottery and that of Metapelite are commemorative tablets, creating artwork.

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