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Basaltic Trachyandesite vs Dunite


Dunite vs Basaltic Trachyandesite


Definition

Definition
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  
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine  

History
  
  

Origin
-  
New Zealand  

Discoverer
Unknown  
Ferdinand von Hochstetter  

Etymology
From its mineral and compound content and its relation with Basalt and Andesite rock  
From the name of Dun Mountain, New Zealand, + -ite1  

Class
Igneous Rocks  
Igneous Rocks  

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

Family
  
  

Group
Volcanic  
Plutonic  

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

Texture

Texture
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular  
Phaneritic  

Color
Black, Brown, Light to Dark Grey  
Dark Greenish - Grey  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
Yes  

Wind Resistant
No  
No  

Acid Resistant
Yes  
No  

Appearance
Dull and Soft  
Rough and Shiny  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing, Whetstones  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone  
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar  

Medical Industry
-  
-  

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

Other Uses
  
  

Commercial Uses
An Oil and Gas Reservoir, Commemorative Tablets, Creating Artwork  
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds  

Types

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

Features
Has High structural resistance against erosion and climate, Very fine grained rock  
Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Basaltic Trachandesite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes.  
Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.   

Composition
  
  

Mineral Content
Olivine, Plagioclase, Pyroxene  
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene  

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

Transformation
  
  

Metamorphism
Yes  
Yes  

Types of Metamorphism
Contact Metamorphism  
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism  

Weathering
Yes  
Yes  

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

Erosion
No  
Yes  

Types of Erosion
-  
Coastal Erosion, Glacier Erosion, Water Erosion  

Properties

Physical Properties
  
  

Hardness
6  
3.5-4  

Grain Size
Fine Grained  
Coarse Grained  

Fracture
Conchoidal  
Irregular  

Streak
White to Grey  
White  

Porosity
Less Porous  
Less Porous  

Luster
-  
Shiny  

Compressive Strength
37.50 N/mm2  
99+
107.55 N/mm2  
28

Cleavage
-  
-  

Toughness
2.3  
2.1  

Specific Gravity
2.8-3  
3-3.01  

Transparency
Opaque  
Translucent to Opaque  

Density
2.9-3.1 g/cm3  
2.84-2.85 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K  
15
1.25 kJ/Kg K  
6

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Russia  
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey  

Africa
South Africa  
Morocco, South Africa  

Europe
Iceland  
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
Canada, USA  

South America
Brazil  
Argentina, Brazil, Colombia, Ecuador, Venezuela  

Deposits in Oceania Continent
  
  

Australia
-  
New Zealand, Western Australia  

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Basaltic Trachyandesite vs Dunite 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 Basaltic Trachyandesite and Dunite Reserves. 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. Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. 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 Basaltic Trachyandesite vs Dunite information and Basaltic Trachyandesite vs Dunite characteristics in the upcoming sections.

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Basaltic Trachyandesite vs Dunite 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. Basaltic Trachyandesite vs Dunite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Basaltic Trachyandesite and Properties of Dunite. Learn more about Basaltic Trachyandesite vs Dunite in the next section. The interior uses of Basaltic Trachyandesite include Floor tiles, Homes, Hotels and Kitchens whereas the interior uses of Dunite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Basaltic Trachyandesite and Dunite, they have various applications in construction industry. The uses of Basaltic Trachyandesite in construction industry include As dimension stone, Cobblestones, Rail track ballast, Roadstone and that of Dunite include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar.

More about Basaltic Trachyandesite and Dunite

Here you can know more about Basaltic Trachyandesite and Dunite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Basaltic Trachyandesite and Dunite consists of mineral content and compound content. The mineral content of Basaltic Trachyandesite includes Olivine, Plagioclase, Pyroxene and mineral content of Dunite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Basaltic Trachyandesite vs Dunite, the texture, color and appearance plays an important role in determining the type of rock. Basaltic Trachyandesite is available in black, brown, light to dark grey colors whereas, Dunite is available in dark greenish - grey colors. Appearance of Basaltic Trachyandesite is Dull and Soft and that of Dunite is Rough and Shiny. Properties of rock is another aspect for Basaltic Trachyandesite vs Dunite. The hardness of Basaltic Trachyandesite is 6 and that of Dunite is 3.5-4. The types of Basaltic Trachyandesite are Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite whereas types of Dunite are Dunite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Basaltic Trachyandesite is white to grey while that of Dunite is white. The specific heat capacity of Basaltic Trachyandesite is 0.84 kJ/Kg K and that of Dunite is 1.25 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Basaltic Trachyandesite is heat resistant, pressure resistant, wear resistant whereas Dunite is heat resistant, pressure resistant, wear resistant.

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