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Tuff vs Trachyandesite


Trachyandesite vs Tuff


Definition

Definition
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption   
Trachyandesite is an extrusive igneous rock.   

History
  
  

Origin
Italy   
Indonesia   

Discoverer
Unknown   
Unknown   

Etymology
From a Latin word tophous then in Italian tufo and finally tuff   
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Volcanic   

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

Texture

Texture
Clastic, Pyroclastic   
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular   

Color
Brown, Grey, Yellow   
Black, Brown, Light to Dark Grey   

Maintenance
More   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Dull, Vesicular and Foilated   
Dull and Soft   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration   
Countertops, Decorative Aggregates, Homes, Interior Decoration   

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Building houses or walls, Construction Aggregate   
Building houses or walls, Cobblestones, for Road Aggregate, Rail Track Ballast, Roadstone   

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

Commercial Uses
Creating Artwork   
Creating Artwork, Pottery   

Types

Types
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.   
Basaltic Trachyandesite   

Features
Always found as volcanic pipes over deep continental crust   
Has High structural resistance against erosion and climate, Very fine grained rock   

Archaeological Significance
  
  

Monuments
Used   
Not Yet Used   

Famous Monuments
Easter Island in the Polynesian Triangle, Pacific Ocean   
Not Applicable   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Tuff is formed when large masses of ash and sand which are mixed with hot gases are ejected by a volcano and avalanche rapidly down its slopes.   
Trachyandesite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.   

Composition
  
  

Mineral Content
Calcite, Chlorite   
Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase   

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

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
4-6   
4-5   

Grain Size
Fine Grained   
Fine Grained   

Fracture
Uneven   
Conchoidal   

Streak
White   
Light to dark brown   

Porosity
Highly Porous   
Less Porous   

Luster
Vitreous to Dull   
Earthy   

Compressive Strength
243.80 N/mm2   
5
37.40 N/mm2   
28

Cleavage
Not Available   
Perfect   

Toughness
Not Available   
2.3   

Specific Gravity
2.73   
2.8-3   

Transparency
Opaque   
Opaque   

Density
1-1.8 g/cm3   
2.9-3.1 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.20 kJ/Kg K   
25
0.84 kJ/Kg K   
15

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen   
India, Russia   

Africa
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda   
South Africa   

Europe
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom   
Iceland   

Others
Antarctica, Hawaii Islands   
Not Yet Found   

Deposits in Western Continents
  
  

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

South America
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay   
Brazil   

Deposits in Oceania Continent
  
  

Australia
Central Australia, Western Australia   
Not Yet Found   

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Tuff vs 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 Tuff and Trachyandesite Reserves. Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Trachyandesite is an extrusive igneous rock.. 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 Tuff vs Trachyandesite information and Tuff vs Trachyandesite characteristics in the upcoming sections.

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Tuff vs 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. Tuff vs Trachyandesite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Tuff and Properties of Trachyandesite. Learn more about Tuff vs Trachyandesite in the next section. The interior uses of Tuff include Decorative aggregates, Entryways, Flooring, Homes and Interior decoration whereas the interior uses of Trachyandesite include Countertops, Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Tuff and Trachyandesite, they have various applications in construction industry. The uses of Tuff in construction industry include Building houses or walls, Construction aggregate and that of Trachyandesite include Building houses or walls, Cobblestones, For road aggregate, Rail track ballast, Roadstone.

More about Tuff and Trachyandesite

Here you can know more about Tuff and Trachyandesite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Tuff and Trachyandesite consists of mineral content and compound content. The mineral content of Tuff includes Calcite, Chlorite and mineral content of Trachyandesite includes Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase. You can also check out the list of all Igneous Rocks. When we have to compare Tuff vs Trachyandesite, the texture, color and appearance plays an important role in determining the type of rock. Tuff is available in brown, grey, yellow colors whereas, Trachyandesite is available in black, brown, light to dark grey colors. Appearance of Tuff is Dull, Vesicular and Foilated and that of Trachyandesite is Dull and Soft. Properties of rock is another aspect for Tuff vs Trachyandesite. The hardness of Tuff is 4-6 and that of Trachyandesite is 4-5. The types of Tuff are Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite. whereas types of Trachyandesite are Basaltic Trachyandesite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Tuff is white while that of Trachyandesite is light to dark brown. The specific heat capacity of Tuff is 0.20 kJ/Kg K and that of 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.Tuff is heat resistant, impact resistant, pressure resistant, wear resistant whereas Trachyandesite is heat resistant, pressure resistant, wear resistant.

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