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Peridotite vs Schist


Schist vs Peridotite


Definition

Definition
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle  
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation  

History
  
  

Origin
Pike County, U.S  
-  

Discoverer
Unknown  
Unknown  

Etymology
From French, from peridot +‎ -ite  
From French schiste, Greek skhistos i.e. split  

Class
Igneous Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
Plutonic  
-  

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

Texture

Texture
Phaneritic  
Foliated, Platy  

Color
Dark Greenish - Grey  
Black, Blue, Brown, Dark Brown, Green, Grey, Silver  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
No  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Rough and Shiny  
Layered and Shiny  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration  
Decorative Aggregates, Floor Tiles, Interior Decoration  

Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration  
Garden Decoration, Paving Stone  

Other Architectural Uses
Curbing  
-  

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones  
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone  

Medical Industry
-  
-  

Antiquity Uses
Monuments, Sculpture, Small Figurines  
Artifacts  

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds  
Used in aquariums, Writing Slates  

Types

Types
Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite  
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.  

Features
Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock  
Easily splits into thin plates, Smooth to touch  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Peridotites can be formed in two ways: as mantle rocks formed during the accretion and differentiation of the Earth or as cumulate rocks formed by precipitation of olivine and pyroxenes from basaltic magmas.  
Schist formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.  

Composition
  
  

Mineral Content
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene  
Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc  

Compound Content
Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide  
CaO, Carbon Dioxide, MgO  

Transformation
  
  

Metamorphism
Yes  
No  

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism  
-  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion  
Chemical Erosion, Coastal Erosion, Glacier Erosion  

Properties

Physical Properties
  
  

Hardness
5.5-6  
3.5-4  

Grain Size
Coarse Grained  
Medium to Fine Coarse Grained  

Fracture
Irregular  
Conchoidal  

Streak
White  
White  

Porosity
Less Porous  
Highly Porous  

Luster
Shiny  
Shiny  

Compressive Strength
107.55 N/mm2  
28
150.00 N/mm2  
22

Cleavage
-  
Slaty  

Toughness
2.1  
1.5  

Specific Gravity
3-3.01  
2.5-2.9  

Transparency
Translucent to Opaque  
Opaque  

Density
3.1-3.4 g/cm3  
2.8-2.9 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
1.26 kJ/Kg K  
5
0.70 kJ/Kg K  
24

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey  
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam  

Africa
Morocco, South Africa  
Egypt, Ethiopia, Morocco, Nigeria, South Africa  

Europe
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland  
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
Canada, Costa Rica, Cuba, Mexico, Panama, USA  

South America
Brazil  
Brazil, Colombia, Guyana  

Deposits in Oceania Continent
  
  

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

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Peridotite vs Schist 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 Peridotite and Schist Reserves. Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle. Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. 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 Peridotite vs Schist information and Peridotite vs Schist characteristics in the upcoming sections.

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Peridotite vs Schist 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. Peridotite vs Schist characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Peridotite and Properties of Schist. Learn more about Peridotite vs Schist in the next section. The interior uses of Peridotite include Decorative aggregates and Interior decoration whereas the interior uses of Schist include Decorative aggregates, Floor tiles and Interior decoration. Due to some exceptional properties of Peridotite and Schist, they have various applications in construction industry. The uses of Peridotite in construction industry include As dimension stone, Cobblestones and that of Schist include As dimension stone, Building houses or walls, Cement manufacture, For road aggregate, Roadstone.

More about Peridotite and Schist

Here you can know more about Peridotite and Schist. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Peridotite and Schist consists of mineral content and compound content. The mineral content of Peridotite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene and mineral content of Schist includes Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc. You can also check out the list of all Igneous Rocks. When we have to compare Peridotite vs Schist, the texture, color and appearance plays an important role in determining the type of rock. Peridotite is available in dark greenish - grey colors whereas, Schist is available in black, blue, brown, dark brown, green, grey, silver colors. Appearance of Peridotite is Rough and Shiny and that of Schist is Layered and Shiny. Properties of rock is another aspect for Peridotite vs Schist. The hardness of Peridotite is 5.5-6 and that of Schist is 3.5-4. The types of Peridotite are Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite whereas types of Schist are Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Peridotite and Schist is white. The specific heat capacity of Peridotite is 1.26 kJ/Kg K and that of Schist is 0.70 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Peridotite is heat resistant, pressure resistant, wear resistant whereas Schist is impact resistant, pressure resistant, water resistant.

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