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Schist vs Jaspillite


Jaspillite vs Schist


Definition

Definition
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation  
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks  

History
  
  

Origin
-  
Western Australia, Minnesota  

Discoverer
Unknown  
Unknown  

Etymology
From French schiste, Greek skhistos i.e. split  
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper  

Class
Metamorphic Rocks  
Sedimentary Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Foliated, Platy  
Banded, Trellis  

Color
Black, Blue, Brown, Dark Brown, Green, Grey, Silver  
Red, Reddish Brown  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
No  

Scratch Resistant
No  
No  

Stain Resistant
No  
No  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Layered and Shiny  
Banded and Glassy  

Uses

Architecture
  
  

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

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

Other Architectural Uses
-  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone  
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories  

Medical Industry
-  
-  

Antiquity Uses
Artifacts  
Artifacts, Jewellery, Monuments  

Other Uses
  
  

Commercial Uses
Used in aquariums, Writing Slates  
Creating Artwork, Jewelry  

Types

Types
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.  
Algoma-type , Lake Superior-type and Superior-type  

Features
Easily splits into thin plates, Smooth to touch  
Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Present  

Formation

Formation
Schist formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.  
Jaspillite is a type of sedimentary rock which is formed by the compaction and sedimentation of pieces of broken or weathered rocks and minerals.  

Composition
  
  

Mineral Content
Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc  
Coesite, Quartz, Sand  

Compound Content
CaO, Carbon Dioxide, MgO  
Fe, Iron(III) Oxide, Silicon Dioxide  

Transformation
  
  

Metamorphism
No  
No  

Types of Metamorphism
-  
-  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
3.5-4  
3  

Grain Size
Medium to Fine Coarse Grained  
Large and Coarse Grained  

Fracture
Conchoidal  
Conchoidal  

Streak
White  
White  

Porosity
Highly Porous  
Very Less Porous  

Luster
Shiny  
Earthy  

Compressive Strength
150.00 N/mm2  
22
230.00 N/mm2  
7

Cleavage
Slaty  
-  

Toughness
1.5  
-  

Specific Gravity
2.5-2.9  
5.0-5.3  

Transparency
Opaque  
Translucent to Opaque  

Density
2.8-2.9 g/cm3  
0-5.7 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.70 kJ/Kg K  
24
3.20 kJ/Kg K  
1

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

Reserves

Deposits in Eastern Continents
  
  

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

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

Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland  
Ukraine  

Others
-  
-  

Deposits in Western Continents
  
  

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

South America
Brazil, Colombia, Guyana  
Brazil  

Deposits in Oceania Continent
  
  

Australia
New South Wales, New Zealand, Queensland  
Western Australia  

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Schist vs Jaspillite 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 Schist and Jaspillite Reserves. Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks. 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 Schist vs Jaspillite information and Schist vs Jaspillite characteristics in the upcoming sections.

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Schist vs Jaspillite 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. Schist vs Jaspillite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Schist and Properties of Jaspillite. Learn more about Schist vs Jaspillite in the next section. The interior uses of Schist include Decorative aggregates, Floor tiles and Interior decoration whereas the interior uses of Jaspillite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Schist and Jaspillite, they have various applications in construction industry. The uses of Schist in construction industry include As dimension stone, Building houses or walls, Cement manufacture, For road aggregate, Roadstone and that of Jaspillite include As a flux in the production of steel and pig iron, As a sintering agent in steel industry to process iron ore, As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories.

More about Schist and Jaspillite

Here you can know more about Schist and Jaspillite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Schist and Jaspillite consists of mineral content and compound content. The mineral content of Schist includes Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc and mineral content of Jaspillite includes Coesite, Quartz, Sand. You can also check out the list of all Metamorphic Rocks. When we have to compare Schist vs Jaspillite, the texture, color and appearance plays an important role in determining the type of rock. Schist is available in black, blue, brown, dark brown, green, grey, silver colors whereas, Jaspillite is available in red, reddish brown colors. Appearance of Schist is Layered and Shiny and that of Jaspillite is Banded and Glassy. Properties of rock is another aspect for Schist vs Jaspillite. The hardness of Schist is 3.5-4 and that of Jaspillite is 3. The types of Schist are Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist. whereas types of Jaspillite are Algoma-type , Lake Superior-type and Superior-type. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Schist and Jaspillite is white. The specific heat capacity of Schist is 0.70 kJ/Kg K and that of Jaspillite is 3.20 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Schist is impact resistant, pressure resistant, water resistant whereas Jaspillite is heat resistant, impact resistant, wear resistant.

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