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Metapelite vs Anorthosite


Anorthosite vs Metapelite


Definition

Definition
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  
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase  

History
  
  

Origin
-  
-  

Discoverer
Unknown  
Unknown  

Etymology
From Pelos or clay in Greek  
From French anorthose plagioclase + -ite1  

Class
Metamorphic Rocks  
Igneous Rocks  

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

Family
  
  

Group
-  
Plutonic  

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

Texture

Texture
Foliated  
Foliated, Glassy  

Color
Dark Greenish - Grey, Green, Light Green, Light Greenish Grey  
Black, Bluish - Grey, Brown, Green, Grey, Light Greenish Grey, Pink, White  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
No  
Yes  

Acid Resistant
No  
No  

Appearance
Banded  
Layered, Banded, Veined and Shiny  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate  
As Dimension Stone, Cement Manufacture, for Road Aggregate  

Medical Industry
-  
-  

Antiquity Uses
Artifacts  
Artifacts, Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Commemorative Tablets, Creating Artwork  
Creating Artwork, Curling  

Types

Types
Metamorphic rock  
Proterozoic Anorthosite and Archean Anorthosite  

Features
Easily splits into thin plates, It is One of the Oldest, Strongest and Hardest Rock  
Generally rough to touch, Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
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.  
Anorthosite is a phaneritic, intrusive igneous rock which is characterized by a predominance of plagioclase feldspar which is almost 90–100%, and a minimal mafic component.   

Composition
  
  

Mineral Content
Albite, Chlorite, Quartz  
Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene  

Compound Content
Aluminium Oxide, CaO, MgO  
Ca, CaO, Chromium(III) Oxide, MgO, Sulfur Trioxide  

Transformation
  
  

Metamorphism
No  
Yes  

Types of Metamorphism
-  
Cataclastic Metamorphism, Contact Metamorphism  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
5-6  
5-6  

Grain Size
Medium to Fine Coarse Grained  
Coarse Grained  

Fracture
Fibrous  
Irregular  

Streak
-  
White  

Porosity
Highly Porous  
Less Porous  

Luster
Earthy  
Pearly to Subvitreous  

Compressive Strength
40.00 N/mm2  
40
180.00 N/mm2  
18

Cleavage
-  
-  

Toughness
-  
-  

Specific Gravity
3.4-3.7  
2.62-2.82  

Transparency
Opaque  
Translucent  

Density
0-300 g/cm3  
2.7-4 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.72 kJ/Kg K  
22
0.84 kJ/Kg K  
15

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

Reserves

Deposits in Eastern Continents
  
  

Asia
-  
-  

Africa
Western Africa  
-  

Europe
United Kingdom  
Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic  

Others
-  
-  

Deposits in Western Continents
  
  

North America
-  
Canada  

South America
Brazil, Colombia, Ecuador  
Bolivia, Colombia  

Deposits in Oceania Continent
  
  

Australia
Central Australia, Western Australia  
Central Australia, South Australia, Western Australia  

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Metapelite vs Anorthosite 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 Metapelite and Anorthosite Reserves. 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. Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. 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 Metapelite vs Anorthosite information and Metapelite vs Anorthosite characteristics in the upcoming sections.

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Metapelite vs Anorthosite 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. Metapelite vs Anorthosite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Metapelite and Properties of Anorthosite. Learn more about Metapelite vs Anorthosite in the next section. The interior uses of Metapelite include Decorative aggregates and Interior decoration whereas the interior uses of Anorthosite include Decorative aggregates, Floor tiles, Homes and Interior decoration. Due to some exceptional properties of Metapelite and Anorthosite, they have various applications in construction industry. The uses of Metapelite in construction industry include Cement manufacture, Construction aggregate, For road aggregate and that of Anorthosite include As dimension stone, Cement manufacture, For road aggregate.

More about Metapelite and Anorthosite

Here you can know more about Metapelite and Anorthosite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Metapelite and Anorthosite consists of mineral content and compound content. The mineral content of Metapelite includes Albite, Chlorite, Quartz and mineral content of Anorthosite includes Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene. You can also check out the list of all Metamorphic Rocks. When we have to compare Metapelite vs Anorthosite, the texture, color and appearance plays an important role in determining the type of rock. Metapelite is available in dark greenish - grey, green, light green, light greenish grey colors whereas, Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. Appearance of Metapelite is Banded and that of Anorthosite is Layered, Banded, Veined and Shiny. Properties of rock is another aspect for Metapelite vs Anorthosite. Hardness of Metapelite and Anorthosite is 5-6. The types of Metapelite are Metamorphic rock whereas types of Anorthosite are Proterozoic Anorthosite and Archean Anorthosite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Metapelite is while that of Anorthosite is white. The specific heat capacity of Metapelite is 0.72 kJ/Kg K and that of Anorthosite is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Metapelite is heat resistant, impact resistant, pressure resistant whereas Anorthosite is heat resistant, impact resistant, pressure resistant, scratch resistant, wear resistant.

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