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Coal vs Claystone


Claystone vs Coal


Definition

Definition
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds  
Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay  

History
  
  

Origin
USA  
-  

Discoverer
John Peter Salley  
Unknown  

Etymology
From the Old English term col, which has meant mineral of fossilized carbon since the 13th century  
From English clay and stone as the rock contains more amount of clay  

Class
Sedimentary Rocks  
Sedimentary Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Amorphous, Glassy  
Clastic  

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

Maintenance
Less  
More  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
No  
Yes  

Stain Resistant
No  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Veined or Pebbled  
Rough and Dull  

Uses

Architecture
  
  

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

Exterior Uses
-  
As Facing Stone, Roof Tiles  

Other Architectural Uses
-  
Curbing  

Industry
  
  

Construction Industry
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production  
As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar  

Medical Industry
-  
-  

Antiquity Uses
Artifacts  
Artifacts, Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry  
Pottery  

Types

Types
Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite  
Claystone  

Features
Helps in production of Heat and Electricity, Used as fossil fuel  
Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Present  
Present  

Formation

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.  
Claystone is generally quite soft, but can be hard and brittle. It forms due to weathering of mudstone.  

Composition
  
  

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  
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz  

Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur  
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, MgO, Silicon Dioxide  

Transformation
  
  

Metamorphism
Yes  
No  

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism  
-  

Weathering
No  
Yes  

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

Erosion
No  
Yes  

Types of Erosion
-  
Coastal Erosion, Water Erosion  

Properties

Physical Properties
  
  

Hardness
1-1.5  
3.5-4  

Grain Size
Medium to Fine Coarse Grained  
Fine Grained  

Fracture
Conchoidal  
-  

Streak
Black  
White  

Porosity
Less Porous  
Very Less Porous  

Luster
Dull to Vitreous to Submetallic  
Dull  

Compressive Strength
-  
40.00 N/mm2  
40

Cleavage
-  
Perfect  

Toughness
-  
2.6  

Specific Gravity
1.1-1.4  
0  

Transparency
Opaque  
Opaque  

Density
1100-1400 g/cm3  
2-2.9 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
1.32 kJ/Kg K  
4
0.92 kJ/Kg K  
10

Resistance
Heat Resistant  
Heat Resistant, Impact Resistant  

Reserves

Deposits in Eastern Continents
  
  

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

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

Europe
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom  
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA  
Canada, Panama, USA  

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

Deposits in Oceania Continent
  
  

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

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Coal vs Claystone 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 Claystone Reserves. Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay. 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 Claystone information and Coal vs Claystone characteristics in the upcoming sections.

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Coal vs Claystone 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 Claystone characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Coal and Properties of Claystone. Learn more about Coal vs Claystone in the next section. The interior uses of Coal include whereas the interior uses of Claystone include Decorative aggregates, Entryways, Floor tiles, Homes and Interior decoration. Due to some exceptional properties of Coal and Claystone, 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 Claystone include As a sintering agent in steel industry to process iron ore, Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar.

More about Coal and Claystone

Here you can know more about Coal and Claystone. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Coal and Claystone 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 Claystone includes Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Coal vs Claystone, 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, Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. Appearance of Coal is Veined or Pebbled and that of Claystone is Rough and Dull. Properties of rock is another aspect for Coal vs Claystone. The hardness of Coal is 1-1.5 and that of Claystone is 3.5-4. The types of Coal are Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite whereas types of Claystone are Claystone. 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 Claystone is white. The specific heat capacity of Coal is 1.32 kJ/Kg K and that of Claystone is 0.92 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 Claystone is heat resistant, impact resistant.

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