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Claystone vs Greywacke


Greywacke vs Claystone


Definition

Definition
Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay   
Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay   

History
  
  

Discoverer
Unknown   
Unknown   

Etymology
From English clay and stone as the rock contains more amount of clay   
From German Grauwacke, from grau grey + wacke   

Class
Sedimentary Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Clastic   
Clastic   

Color
Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow   
Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow   

Maintenance
More   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
No   
Yes   

Acid Resistant
No   
No   

Appearance
Rough and Dull   
Dull   

Uses

Architecture
  
  

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

Exterior Uses
As Facing Stone, Roof Tiles   
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone   

Other Architectural Uses
Curbing   
Curbing, Whetstones   

Industry
  
  

Construction Industry
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   
Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar   

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

Commercial Uses
Pottery   
As armour rock for sea walls, Petroleum reservoirs, Sea Defence, Tombstones   

Types

Types
Not Available   
Not Available   

Features
Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock   
Available in Lots of Colors and Patterns, Generally rough to touch, Non-vesicular, Veined   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Not Yet Used   

Famous Monuments
Not Applicable   
Not Applicable   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
Used   

Fossils
Present   
Present   

Formation

Formation
Claystone is generally quite soft, but can be hard and brittle. It forms due to weathering of mudstone.   
Graywacke rock is a type of sedimentary rock, which is also known as immature sandstone, which is indurated, dark grey and consisting of poorly sorted angular to sub-angular, sand-sized grains.   

Composition
  
  

Mineral Content
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz   
Augite, Biotite, Calcite, Chlorite, Clay, Clay Minerals, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz   

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

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

Types of Erosion
Coastal Erosion, Water Erosion   
Coastal Erosion, Sea Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
3.5-4   
6-7   

Grain Size
Fine Grained   
Angular and Fine   

Fracture
Not Available   
Conchoidal   

Streak
White   
White   

Porosity
Very Less Porous   
Highly Porous   

Luster
Dull   
Dull   

Cleavage
Perfect   
Perfect   

Toughness
2.6   
2.6   

Specific Gravity
0   
2.2-2.8   

Transparency
Opaque   
Opaque   

Density
2-2.9 g/cm3   
2.6-2.61 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
Not Available   

Resistance
Heat Resistant, Impact Resistant   
Heat Resistant, Impact Resistant, Pressure Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, China, India, Russia   
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan   

Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania   
Namibia, Nigeria, South Africa   

Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland   
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom   

Others
Not Yet Found   
Greenland   

Deposits in Western Continents
  
  

North America
Canada, Panama, USA   
Canada, USA   

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

Deposits in Oceania Continent
  
  

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

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Claystone vs Greywacke 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 Claystone and Greywacke Reserves. Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay. Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent 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 Claystone vs Greywacke information and Claystone vs Greywacke characteristics in the upcoming sections.

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Claystone vs Greywacke 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. Claystone vs Greywacke characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Claystone and Properties of Greywacke. Learn more about Claystone vs Greywacke in the next section. The interior uses of Claystone include Decorative aggregates, Entryways, Floor tiles, Homes and Interior decoration whereas the interior uses of Greywacke include Decorative aggregates, Floor tiles, Flooring, Homes and Interior decoration. Due to some exceptional properties of Claystone and Greywacke, they have various applications in construction industry. The uses of Claystone in construction industry 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 and that of Greywacke include Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate, Raw material for the manufacture of mortar.

More about Claystone and Greywacke

Here you can know more about Claystone and Greywacke. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Claystone and Greywacke consists of mineral content and compound content. The mineral content of Claystone includes Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz and mineral content of Greywacke includes Augite, Biotite, Calcite, Chlorite, Clay, Clay Minerals, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Claystone vs Greywacke, the texture, color and appearance plays an important role in determining the type of rock. Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors whereas, Greywacke is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. Appearance of Claystone is Rough and Dull and that of Greywacke is Dull. Properties of rock is another aspect for Claystone vs Greywacke. The hardness of Claystone is 3.5-4 and that of Greywacke is 6-7. The types of Claystone are Not Available whereas types of Greywacke are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Claystone and Greywacke is white. The specific heat capacity of Claystone is 0.92 kJ/Kg K and that of Greywacke is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Claystone is heat resistant, impact resistant whereas Greywacke is heat resistant, impact resistant, pressure resistant.

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