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Schist vs Appinite


Appinite vs Schist


Definition

Definition
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation  
Appinite is an igneous rock in which the crystals are so fine grained that individual minerals cannot be easily distinguished  

History
  
  

Origin
-  
-  

Discoverer
Unknown  
Unknown  

Etymology
From French schiste, Greek skhistos i.e. split  
From the variety of Lamprophyre Greek lampros bright and shining + porphureos purple  

Class
Metamorphic Rocks  
Igneous Rocks  

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

Family
  
  

Group
-  
Plutonic  

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

Texture

Texture
Foliated, Platy  
Porphyritic  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
No  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
Yes  

Appearance
Layered and Shiny  
Dull, Banded and Foilated  

Uses

Architecture
  
  

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

Exterior Uses
Garden Decoration, Paving Stone  
Paving Stone, Garden Decoration, Office Buildings  

Other Architectural Uses
-  
Whetstones  

Industry
  
  

Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone  
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories  

Medical Industry
-  
Taken as a Supplement for Calcium or Magnesium  

Antiquity Uses
Artifacts  
Artifacts, Monuments, Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Used in aquariums, Writing Slates  
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner  

Types

Types
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.  
Igneous rock  

Features
Easily splits into thin plates, Smooth to touch  
Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

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.  
The formation of Appinite takes place deep beneath the Earth’s surface at around 150 to 450 kms, and are erupted rapidly and violently.  

Composition
  
  

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

Compound Content
CaO, Carbon Dioxide, MgO  
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide  

Transformation
  
  

Metamorphism
No  
Yes  

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

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion  
Chemical Erosion, Water Erosion, Wind Erosion  

Properties

Physical Properties
  
  

Hardness
3.5-4  
5-6  

Grain Size
Medium to Fine Coarse Grained  
Fine to Coarse Grained  

Fracture
Conchoidal  
Conchoidal  

Streak
White  
White  

Porosity
Highly Porous  
Very Less Porous  

Luster
Shiny  
Subvitreous to Dull  

Compressive Strength
150.00 N/mm2  
22
185.00 N/mm2  
17

Cleavage
Slaty  
Conchoidal  

Toughness
1.5  
-  

Specific Gravity
2.5-2.9  
2.86-2.87  

Transparency
Opaque  
Translucent to Opaque  

Density
2.8-2.9 g/cm3  
2.95-2.96 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.70 kJ/Kg K  
24
0.84 kJ/Kg K  
15

Resistance
Impact Resistant, Pressure Resistant, Water Resistant  
Heat Resistant, Impact 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  
Angola, Botswana, Cameroon, Ethiopia, South Africa  

Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland  
England, Hungary, Iceland, United Kingdom  

Others
-  
Antarctica, Greenland  

Deposits in Western Continents
  
  

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

South America
Brazil, Colombia, Guyana  
Argentina, Colombia, Ecuador  

Deposits in Oceania Continent
  
  

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

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Schist vs Appinite 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 Appinite Reserves. Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. Appinite is an igneous rock in which the crystals are so fine grained that individual minerals cannot be easily distinguished. 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 Appinite information and Schist vs Appinite characteristics in the upcoming sections.

Compare Metamorphic Rocks

Schist vs Appinite 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 Appinite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Schist and Properties of Appinite. Learn more about Schist vs Appinite in the next section. The interior uses of Schist include Decorative aggregates, Floor tiles and Interior decoration whereas the interior uses of Appinite include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Schist and Appinite, 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 Appinite include As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories.

More about Schist and Appinite

Here you can know more about Schist and Appinite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Schist and Appinite 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 Appinite includes Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene. You can also check out the list of all Metamorphic Rocks. When we have to compare Schist vs Appinite, 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, Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. Appearance of Schist is Layered and Shiny and that of Appinite is Dull, Banded and Foilated. Properties of rock is another aspect for Schist vs Appinite. The hardness of Schist is 3.5-4 and that of Appinite is 5-6. 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 Appinite are Igneous rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Schist and Appinite is white. The specific heat capacity of Schist is 0.70 kJ/Kg K and that of Appinite is 0.84 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 Appinite is heat resistant, impact resistant.

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