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Blueschist vs Basaltic Trachyandesite


Basaltic Trachyandesite vs Blueschist


Definition

Definition
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature  
Basaltic Trachyandesite is an extrusive igneous rock which is a type of Basalt rock and is formed by the rapid cooling of basaltic lava exposed at or very near the Earth's surface  

History
  
  

Origin
USA  
-  

Discoverer
Edgar Bailey  
Unknown  

Etymology
From French schiste, Greek skhistos i.e. split  
From its mineral and compound content and its relation with Basalt and Andesite rock  

Class
Metamorphic Rocks  
Igneous 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, Opaque Rock  

Texture

Texture
Foliated  
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
No  

Scratch Resistant
No  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
Yes  

Appearance
Dull and Banded  
Dull and Soft  

Uses

Architecture
  
  

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

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

Other Architectural Uses
-  
Curbing, Whetstones  

Industry
  
  

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

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts, Monuments  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Tombstones  
An Oil and Gas Reservoir, Commemorative Tablets, Creating Artwork  

Types

Types
Metamorphic rock  
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite  

Features
Has High structural resistance against erosion and climate, 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
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.  
Basaltic Trachandesite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes.  

Composition
  
  

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

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

Transformation
  
  

Metamorphism
No  
Yes  

Types of Metamorphism
-  
Contact Metamorphism  

Weathering
Yes  
Yes  

Types of Weathering
Mechanical Weathering  
Biological Weathering  

Erosion
Yes  
No  

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

Properties

Physical Properties
  
  

Hardness
3.5-4  
6  

Grain Size
Fine to Medium Grained  
Fine Grained  

Fracture
Conchoidal  
Conchoidal  

Streak
White to Grey  
White to Grey  

Porosity
Highly Porous  
Less Porous  

Luster
Dull  
-  

Compressive Strength
220.00 N/mm2  
9
37.50 N/mm2  
99+

Cleavage
Slaty  
-  

Toughness
1.5  
2.3  

Specific Gravity
3-3.2  
2.8-3  

Transparency
Opaque  
Opaque  

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

Thermal Properties
  
  

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

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Japan, Turkey  
India, Russia  

Africa
Egypt, Ethiopia, South Africa  
South Africa  

Europe
France, Greece, Iceland  
Iceland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
USA  
Canada, USA  

South America
-  
Brazil  

Deposits in Oceania Continent
  
  

Australia
New Zealand  
-  

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Blueschist vs Basaltic Trachyandesite 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 Blueschist and Basaltic Trachyandesite Reserves. Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature. Basaltic Trachyandesite is an extrusive igneous rock which is a type of Basalt rock and is formed by the rapid cooling of basaltic lava exposed at or very near the Earth's surface. 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 Blueschist vs Basaltic Trachyandesite information and Blueschist vs Basaltic Trachyandesite characteristics in the upcoming sections.

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

More about Blueschist and Basaltic Trachyandesite

Here you can know more about Blueschist and Basaltic Trachyandesite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Blueschist and Basaltic Trachyandesite consists of mineral content and compound content. The mineral content of Blueschist includes Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz and mineral content of Basaltic Trachyandesite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Blueschist vs Basaltic Trachyandesite, the texture, color and appearance plays an important role in determining the type of rock. Blueschist is available in blue, bluish - grey, purple, shades of blue colors whereas, Basaltic Trachyandesite is available in black, brown, light to dark grey colors. Appearance of Blueschist is Dull and Banded and that of Basaltic Trachyandesite is Dull and Soft. Properties of rock is another aspect for Blueschist vs Basaltic Trachyandesite. The hardness of Blueschist is 3.5-4 and that of Basaltic Trachyandesite is 6. The types of Blueschist are Metamorphic rock whereas types of Basaltic Trachyandesite are Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Blueschist and Basaltic Trachyandesite is white to grey. The specific heat capacity of Blueschist is 0.84 kJ/Kg K and that of Basaltic Trachyandesite 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.Blueschist is impact resistant, pressure resistant whereas Basaltic Trachyandesite is heat resistant, pressure resistant, wear resistant.

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