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Anthracite vs Dunite


Dunite vs Anthracite


Definition

Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster   
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine   

History
  
  

Origin
Pennsylvania, U.S.   
New Zealand   

Discoverer
Unknown   
Ferdinand von Hochstetter   

Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal   
From the name of Dun Mountain, New Zealand, + -ite1   

Class
Metamorphic Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture

Texture
Amorphous, Glassy   
Phaneritic   

Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey   
Dark Greenish - Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Veined or Pebbled   
Rough and Shiny   

Uses

Architecture
  
  

Interior Uses
Not Yet Used   
Decorative Aggregates, Interior Decoration   

Exterior Uses
Not Yet Used   
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone   

Other Architectural Uses
Not Yet Used   
Curbing   

Industry
  
  

Construction Industry
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production   
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar   

Medical Industry
In Chemical and Pharmaceutical Industry, Manufacture of Aspirins   
Not Yet Used   

Antiquity Uses
Not Yet Used   
Artifacts, Monuments, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry   
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds   

Types

Types
Semi-anthracite and Meta-anthracite   
Not Available   

Features
Helps in production of Heat and Electricity, Used as fossil fuel   
Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

Sculpture
Not Yet Used   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Not Yet Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Anthracite forms from the accumulation of plant debris in a swamp environment. When plant debris dies and falls into the swamp, the standing water of the swamp protects it from decay.   
Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.   

Composition
  
  

Mineral Content
Calcite, Clay, Clay Minerals   
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene   

Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur   
Ca, CaO, Fe, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide   

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
No   
Yes   

Types of Weathering
Not Applicable   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Coastal Erosion, Glacier Erosion, Water Erosion   

Properties

Physical Properties
  
  

Hardness
1-1.5   
3.5-4   

Grain Size
Medium to Fine Coarse Grained   
Coarse Grained   

Fracture
Conchoidal   
Irregular   

Streak
Black   
White   

Porosity
Less Porous   
Less Porous   

Luster
Shiny   
Shiny   

Compressive Strength
Not Available   
107.55 N/mm2   
19

Cleavage
Non-Existent   
Imperfect   

Toughness
Not Available   
2.1   

Specific Gravity
1.1-1.4   
3-3.01   

Transparency
Opaque   
Translucent to Opaque   

Density
1.25-2.5 g/cm3   
2.84-2.85 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
1.32 kJ/Kg K   
4
1.25 kJ/Kg K   
6

Resistance
Heat Resistant, Water Resistant   
Heat Resistant, Pressure Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam   
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey   

Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania   
Morocco, South Africa   

Europe
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom   
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland, Venezuela   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA   
Canada, USA   

South America
Brazil, Chile, Colombia, Venezuela   
Argentina, Brazil, Colombia, Ecuador, Venezuela   

Deposits in Oceania Continent
  
  

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

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Anthracite vs Dunite 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 Anthracite and Dunite Reserves. Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. 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 Anthracite vs Dunite information and Anthracite vs Dunite characteristics in the upcoming sections.

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Anthracite vs Dunite 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. Anthracite vs Dunite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Anthracite and Properties of Dunite. Learn more about Anthracite vs Dunite in the next section. The interior uses of Anthracite include Not yet used whereas the interior uses of Dunite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Anthracite and Dunite, they have various applications in construction industry. The uses of Anthracite in construction industry include Cement manufacture, For road aggregate, Making natural cement, Steel production and that of Dunite include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar.

More about Anthracite and Dunite

Here you can know more about Anthracite and Dunite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Anthracite and Dunite consists of mineral content and compound content. The mineral content of Anthracite includes Calcite, Clay, Clay Minerals and mineral content of Dunite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene. You can also check out the list of all Metamorphic Rocks. When we have to compare Anthracite vs Dunite, the texture, color and appearance plays an important role in determining the type of rock. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas, Dunite is available in dark greenish - grey colors. Appearance of Anthracite is Veined or Pebbled and that of Dunite is Rough and Shiny. Properties of rock is another aspect for Anthracite vs Dunite. The hardness of Anthracite is 1-1.5 and that of Dunite is 3.5-4. The types of Anthracite are Semi-anthracite and Meta-anthracite whereas types of Dunite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Anthracite is black while that of Dunite is white. The specific heat capacity of Anthracite is 1.32 kJ/Kg K and that of Dunite is 1.25 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Anthracite is heat resistant, water resistant whereas Dunite is heat resistant, pressure resistant, wear resistant.

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