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Charnockite vs Anorthosite


Anorthosite vs Charnockite


Definition

Definition
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar  
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase  

History
  
  

Origin
Tamil Nadu, India  
-  

Discoverer
T. H. Holland  
Unknown  

Etymology
From Job Charnock, an administtrator of East India Company  
From French anorthose plagioclase + -ite1  

Class
Igneous Rocks  
Igneous Rocks  

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

Family
  
  

Group
Plutonic  
Plutonic  

Other Categories
Coarse Grained Rock, Opaque Rock  
Coarse Grained Rock, Opaque Rock  

Texture

Texture
Granular  
Foliated, Glassy  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
No  
Yes  

Acid Resistant
Yes  
No  

Appearance
Veined or Pebbled  
Layered, Banded, Veined and Shiny  

Uses

Architecture
  
  

Interior Uses
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads  
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration  

Exterior Uses
As Building Stone, As Facing Stone, Bridges, Paving Stone, Garden Decoration, Office Buildings, Resorts  
As Building Stone, As Facing Stone, Garden Decoration  

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

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

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines  
Artifacts, Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Curling, Gemstone, Laboratory bench tops, Tombstones  
Creating Artwork, Curling  

Types

Types
Enderbite  
Proterozoic Anorthosite and Archean Anorthosite  

Features
Available in Lots of Colors and Patterns, 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
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.  
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
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz  
Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene  

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

Transformation
  
  

Metamorphism
Yes  
Yes  

Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism  
Cataclastic Metamorphism, Contact Metamorphism  

Weathering
Yes  
Yes  

Types of Weathering
Biological Weathering  
Biological Weathering  

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
6-7  
5-6  

Grain Size
Coarse Grained  
Coarse Grained  

Fracture
-  
Irregular  

Streak
White  
White  

Porosity
Very Less Porous  
Less Porous  

Luster
-  
Pearly to Subvitreous  

Compressive Strength
190.00 N/mm2  
15
180.00 N/mm2  
18

Cleavage
-  
-  

Toughness
-  
-  

Specific Gravity
-9999  
2.62-2.82  

Transparency
Opaque  
Translucent  

Density
2.6 g/cm3  
2.7-4 g/cm3  

Thermal Properties
  
  

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

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India  
-  

Africa
East Africa, Ethiopia, Madagascar, Morocco, Mozambique  
-  

Europe
Albania, Romania, Scotland, 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
USA  
Canada  

South America
Brazil, Colombia, Venezuela  
Bolivia, Colombia  

Deposits in Oceania Continent
  
  

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

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Charnockite 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 Charnockite and Anorthosite Reserves. Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar. 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 Charnockite vs Anorthosite information and Charnockite vs Anorthosite characteristics in the upcoming sections.

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

More about Charnockite and Anorthosite

Here you can know more about Charnockite and Anorthosite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Charnockite and Anorthosite consists of mineral content and compound content. The mineral content of Charnockite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz and mineral content of Anorthosite includes Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Charnockite vs Anorthosite, the texture, color and appearance plays an important role in determining the type of rock. Charnockite is available in black, grey, orange, pink, white colors whereas, Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. Appearance of Charnockite is Veined or Pebbled and that of Anorthosite is Layered, Banded, Veined and Shiny. Properties of rock is another aspect for Charnockite vs Anorthosite. The hardness of Charnockite is 6-7 and that of Anorthosite is 5-6. The types of Charnockite are Enderbite 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 Charnockite and Anorthosite is white. The specific heat capacity of Charnockite is 0.84 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.Charnockite is heat resistant, wear resistant whereas Anorthosite is heat resistant, impact resistant, pressure resistant, scratch resistant, wear resistant.

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