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Boninite vs Blueschist


Blueschist vs Boninite


Definition

Definition
Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction  
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature  

History
  
  

Origin
Japan  
USA  

Discoverer
Unknown  
Edgar Bailey  

Etymology
From its occurrence in the Izu-Bonin arc south of Japan  
From French schiste, Greek skhistos i.e. split  

Class
Igneous Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
Volcanic  
-  

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

Texture

Texture
Aphanitic to Porphyritic  
Foliated  

Color
Bluish - Grey, Brown, Green, Grey  
Blue, Bluish - Grey, Purple, Shades of Blue  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
No  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
Yes  
No  

Acid Resistant
No  
No  

Appearance
Dull and Soft  
Dull and Banded  

Uses

Architecture
  
  

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

Exterior Uses
Garden Decoration, Office Buildings  
Garden Decoration, Office Buildings  

Other Architectural Uses
-  
-  

Industry
  
  

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

Medical Industry
-  
-  

Antiquity Uses
Artifacts  
Artifacts, Monuments, Sculpture  

Other Uses
  
  

Commercial Uses
An Oil and Gas Reservoir, Cemetery Markers, Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)  
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling, Tombstones  

Types

Types
Basalt  
Metamorphic rock  

Features
Available in Lots of Colors and Patterns, High Mg content, Is one of the oldest 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
Boninite is a type of Igneous rock which is formed through the cooling and solidification of lava or existing rocks.  
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
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite  
Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz  

Compound Content
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
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism  
-  

Weathering
Yes  
Yes  

Types of Weathering
Biological Weathering  
Mechanical Weathering  

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
7  
3.5-4  

Grain Size
Fine Grained  
Fine to Medium Grained  

Fracture
Uneven  
Conchoidal  

Streak
White  
White to Grey  

Porosity
Less Porous  
Highly Porous  

Luster
Vitreous  
Dull  

Compressive Strength
150.00 N/mm2  
22
220.00 N/mm2  
9

Cleavage
-  
Slaty  

Toughness
1.1  
1.5  

Specific Gravity
2.5-2.8  
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, Impact Resistant, Pressure Resistant, Wear Resistant  
Impact Resistant, Pressure Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
-  
Japan, Turkey  

Africa
South Africa  
Egypt, Ethiopia, South Africa  

Europe
England, Finland, United Kingdom  
France, Greece, Iceland  

Others
Antarctica, Greenland  
-  

Deposits in Western Continents
  
  

North America
USA  
USA  

South America
Colombia, Uruguay  
-  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Western Australia  
New Zealand  

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Boninite 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 Boninite and Blueschist Reserves. Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction. 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 Boninite vs Blueschist information and Boninite vs Blueschist characteristics in the upcoming sections.

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

More about Boninite and Blueschist

Here you can know more about Boninite and Blueschist. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Boninite and Blueschist consists of mineral content and compound content. The mineral content of Boninite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite 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 Boninite vs Blueschist, the texture, color and appearance plays an important role in determining the type of rock. Boninite is available in bluish - grey, brown, green, grey colors whereas, Blueschist is available in blue, bluish - grey, purple, shades of blue colors. Appearance of Boninite is Dull and Soft and that of Blueschist is Dull and Banded. Properties of rock is another aspect for Boninite vs Blueschist. The hardness of Boninite is 7 and that of Blueschist is 3.5-4. The types of Boninite are Basalt 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 Boninite is white while that of Blueschist is white to grey. The specific heat capacity of Boninite 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.Boninite is heat resistant, impact resistant, pressure resistant, wear resistant whereas Blueschist is impact resistant, pressure resistant.

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