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Coal
Coal

Dunite
Dunite



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Coal vs Dunite

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1 Definition
1.1 Definition
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
1.2 History
1.2.1 Origin
USA
New Zealand
1.2.2 Discoverer
John Peter Salley
Ferdinand von Hochstetter
1.3 Etymology
From the Old English term col, which has meant mineral of fossilized carbon since the 13th century
From the name of Dun Mountain, New Zealand, + -ite1
1.4 Class
Sedimentary Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Not Applicable
Plutonic
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Amorphous, Glassy
Phaneritic
2.2 Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey
Dark Greenish - Grey
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
2.4.2 Scratch Resistant
2.4.3 Stain Resistant
2.4.4 Wind Resistant
2.4.5 Acid Resistant
2.5 Appearance
Veined or Pebbled
Rough and Shiny
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Not Yet Used
Decorative Aggregates, Interior Decoration
3.1.2 Exterior Uses
Not Yet Used
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
3.1.3 Other Architectural Uses
Not Yet Used
Curbing
3.2 Industry
3.2.1 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
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts
Artifacts, Monuments, Sculpture, Small Figurines
3.4 Other Uses
3.4.1 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
4 Types
4.1 Types
Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite
Not Available
4.2 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
4.3 Archaeological Significance
4.3.1 Monuments
Not Yet Used
Used
4.3.2 Famous Monuments
Not Applicable
Data Not Available
4.3.3 Sculpture
Not Yet Used
Used
4.3.4 Famous Sculptures
Not Applicable
Data Not Available
4.3.5 Pictographs
Not Used
Used
4.3.6 Petroglyphs
Not Used
Used
4.3.7 Figurines
Not Yet Used
Used
4.4 Fossils
Present
Absent
5 Formation
5.1 Formation
Coal forms from the accumulation of plant debris in a swamp environment which is buried by sediments such as mud or sand and then compacted to form coal.
Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.
5.2 Composition
5.2.1 Mineral Content
Analcime, Apatite, Barite, Calcite, Chalcopyrite, Chlorite, Chromite, Clausthalite, Clay Minerals, Crandallite Group, Dolomite, Feldspar, Galena, Gypsum, Marcasite, Muscovite or Illite, Pyrite, Quartz, Siderite, Sphalerite, Zircon
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene
5.2.2 Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
Ca, CaO, Fe, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide
5.3 Transformation
5.3.1 Metamorphism
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
5.3.3 Weathering
5.3.4 Types of Weathering
Not Applicable
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.5 Erosion
5.3.6 Types of Erosion
Not Applicable
Coastal Erosion, Glacier Erosion, Water Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
1-1.53.5-4
Slate
1 7
6.1.2 Grain Size
Medium to Fine Coarse Grained
Coarse Grained
6.1.3 Fracture
Conchoidal
Irregular
6.1.4 Streak
Black
White
6.1.5 Porosity
Less Porous
Less Porous
6.1.6 Luster
Dull to Vitreous to Submetallic
Shiny
6.1.7 Compressive Strength
NA107.55 N/mm2
Obsidian
0.15 450
6.1.8 Cleavage
Non-Existent
Imperfect
6.1.9 Toughness
Not Available
2.1
6.1.10 Specific Gravity
1.1-1.43-3.01
Granite
0 8.4
6.1.11 Transparency
Opaque
Translucent to Opaque
6.1.12 Density
1100-1400 g/cm32.84-2.85 g/cm3
Granite
0 1400
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
1.32 kJ/Kg K1.25 kJ/Kg K
Granulite
0.14 3.2
6.2.2 Resistance
Heat Resistant
Heat Resistant, Pressure Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey
7.1.2 Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
Morocco, South Africa
7.1.3 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
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, Mexico, USA
Canada, USA
7.2.2 South America
Brazil, Chile, Colombia, Venezuela
Argentina, Brazil, Colombia, Ecuador, Venezuela
7.3 Deposits in Oceania Continent
7.3.1 Australia
New South Wales, Queensland, Victoria
New Zealand, Western Australia

Coal 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 Coal and Dunite Reserves. Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. 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 Coal vs Dunite information and Coal vs Dunite characteristics in the upcoming sections.

Coal 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. Coal vs Dunite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Coal and Properties of Dunite. Learn more about Coal vs Dunite in the next section. The interior uses of Coal include Not yet used whereas the interior uses of Dunite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Coal and Dunite, they have various applications in construction industry. The uses of Coal 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 Coal and Dunite

Here you can know more about Coal and Dunite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Coal and Dunite consists of mineral content and compound content. The mineral content of Coal includes Analcime, Apatite, Barite, Calcite, Chalcopyrite, Chlorite, Chromite, Clausthalite, Clay Minerals, Crandallite Group, Dolomite, Feldspar, Galena, Gypsum, Marcasite, Muscovite or Illite, Pyrite, Quartz, Siderite, Sphalerite, Zircon and mineral content of Dunite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene. You can also check out the list of all Sedimentary Rocks. When we have to compare Coal vs Dunite, the texture, color and appearance plays an important role in determining the type of rock. Coal is available in black, brown, dark brown, grey, light to dark grey colors whereas, Dunite is available in dark greenish - grey colors. Appearance of Coal is Veined or Pebbled and that of Dunite is Rough and Shiny. Properties of rock is another aspect for Coal vs Dunite. The hardness of Coal is 1-1.5 and that of Dunite is 3.5-4. The types of Coal are Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite 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 Coal is black while that of Dunite is white. The specific heat capacity of Coal 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.Coal is heat resistant whereas Dunite is heat resistant, pressure resistant, wear resistant.