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Adakite vs Blueschist


Blueschist vs Adakite


Definition

Definition
Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs  
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature  

History
  
  

Origin
Adak, Aleutian Islands  
USA  

Discoverer
Defant and Drummond  
Edgar Bailey  

Etymology
From Adak, Aleutian Islands  
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
Volcanic  
-  

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

Texture

Texture
Porphyritic  
Foliated  

Color
Black, Brown, Light to Dark Grey  
Blue, Bluish - Grey, Purple, Shades of Blue  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
No  

Scratch Resistant
No  
No  

Stain Resistant
No  
No  

Wind Resistant
Yes  
No  

Acid Resistant
Yes  
No  

Appearance
Dull and Soft  
Dull and Banded  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens  
Floor Tiles, Flooring, Homes, Hotels, Kitchens  

Exterior Uses
As Building Stone, As Facing Stone, Office Buildings  
Garden Decoration, Office Buildings  

Other Architectural Uses
Whetstones  
-  

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone  
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone  

Medical Industry
-  
-  

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

Other Uses
  
  

Commercial Uses
Commemorative Tablets, Pottery, Used in aquariums  
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Tombstones  

Types

Types
Intermediate volcanic rock  
Metamorphic rock  

Features
Has High structural resistance against erosion and climate, Host rock for Diamond, Very fine grained rock  
Has High structural resistance against erosion and climate, Very fine grained rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Adakite rocks are formed when the hydrous fluids are released from minerals that break down in metamorphosed basalt, and rise into the mantle they initiate partial melting.  
Blueschist forms due to the metamorphism of basalt and other rocks with similar composition at high pressures and low temperatures and approximately corresponding to a depth of 15 to 30 kilometers and 200 to 500 °C.  

Composition
  
  

Mineral Content
Olivine, Plagioclase, Pyroxene  
Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz  

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

Transformation
  
  

Metamorphism
Yes  
No  

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

Weathering
Yes  
Yes  

Types of Weathering
Chemical Weathering, Mechanical Weathering  
Mechanical Weathering  

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
3-4  
3.5-4  

Grain Size
Fine to Medium Grained  
Fine to Medium Grained  

Fracture
Conchoidal  
Conchoidal  

Streak
Bluish Black  
White to Grey  

Porosity
Less Porous  
Highly Porous  

Luster
Grainy, Pearly and Vitreous  
Dull  

Compressive Strength
200.00 N/mm2  
13
220.00 N/mm2  
9

Cleavage
-  
Slaty  

Toughness
-  
1.5  

Specific Gravity
-9999  
3-3.2  

Transparency
Opaque  
Opaque  

Density
-9999 g/cm3  
2.8-2.9 g/cm3  

Thermal Properties
  
  

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

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Russia  
Japan, Turkey  

Africa
Ethiopia, Somalia, South Africa  
Egypt, Ethiopia, South Africa  

Europe
Iceland  
France, Greece, Iceland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
USA  

South America
Brazil  
-  

Deposits in Oceania Continent
  
  

Australia
-  
New Zealand  

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Adakite vs Blueschist 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 Adakite and Blueschist Reserves. Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs. Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature. 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 Adakite vs Blueschist information and Adakite vs Blueschist characteristics in the upcoming sections.

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Adakite vs Blueschist 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. Adakite vs Blueschist characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Adakite and Properties of Blueschist. Learn more about Adakite vs Blueschist in the next section. The interior uses of Adakite include Decorative aggregates, Floor tiles, Homes, Hotels and Kitchens whereas the interior uses of Blueschist include Floor tiles, Flooring, Homes, Hotels and Kitchens. Due to some exceptional properties of Adakite and Blueschist, they have various applications in construction industry. The uses of Adakite in construction industry include As dimension stone, Cobblestones, Rail track ballast, Roadstone and that of Blueschist include As dimension stone, Cobblestones, Rail track ballast, Roadstone.

More about Adakite and Blueschist

Here you can know more about Adakite and Blueschist. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Adakite and Blueschist consists of mineral content and compound content. The mineral content of Adakite includes Olivine, Plagioclase, Pyroxene and mineral content of Blueschist includes Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Adakite vs Blueschist, the texture, color and appearance plays an important role in determining the type of rock. Adakite is available in black, brown, light to dark grey colors whereas, Blueschist is available in blue, bluish - grey, purple, shades of blue colors. Appearance of Adakite is Dull and Soft and that of Blueschist is Dull and Banded. Properties of rock is another aspect for Adakite vs Blueschist. The hardness of Adakite is 3-4 and that of Blueschist is 3.5-4. The types of Adakite are Intermediate volcanic rock whereas types of Blueschist are Metamorphic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Adakite is bluish black while that of Blueschist is white to grey. The specific heat capacity of Adakite is 0.84 kJ/Kg K and that of Blueschist 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.Adakite is heat resistant, pressure resistant, wear resistant whereas Blueschist is impact resistant, pressure resistant.

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