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Trachyandesite vs Phyllite


Phyllite vs Trachyandesite


Definition

Definition
Trachyandesite is an extrusive igneous rock.   
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks   

History
  
  

Origin
Indonesia   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From French trachyandésite, trachy + andésite andesite, a lava intermediate in composition between trachyte and andesite   
From Greek phullon leaf + -ite1   

Class
Igneous Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

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

Texture

Texture
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular   
Phyllitic Sheen, Slaty   

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

Maintenance
Less   
More   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
No   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Dull and Soft   
Crinkled or Wavy   

Uses

Architecture
  
  

Interior Uses
Countertops, Decorative Aggregates, Homes, Interior Decoration   
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration   

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Building houses or walls, Cobblestones, for Road Aggregate, Rail Track Ballast, Roadstone   
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate, Raw material for the manufacture of mortar, Roadstone   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Sculpture   
Artifacts, Sculpture   

Other Uses
  
  

Commercial Uses
Creating Artwork, Pottery   
Cemetery Markers, Commemorative Tablets, Creating Artwork, Writing Slates   

Types

Types
Basaltic Trachyandesite   
Not Available   

Features
Has High structural resistance against erosion and climate, Very fine grained rock   
Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Not Yet Used   

Famous Monuments
Not Applicable   
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
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.   
Phyllite is a metamorphic rock which is formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress.   

Composition
  
  

Mineral Content
Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase   
Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon   

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

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism   
Not Applicable   

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, Water Erosion, Wind Erosion   
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
4-5   
1-2   

Grain Size
Fine Grained   
Medium to Fine Coarse Grained   

Fracture
Conchoidal   
Conchoidal   

Streak
Light to dark brown   
White   

Porosity
Less Porous   
Highly Porous   

Luster
Earthy   
Phyllitic   

Compressive Strength
37.40 N/mm2   
28
Not Available   

Cleavage
Perfect   
Crenulation and Pervasive   

Toughness
2.3   
1.2   

Specific Gravity
2.8-3   
2.72-2.73   

Transparency
Opaque   
Opaque   

Density
2.9-3.1 g/cm3   
2.18-3.3 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K   
15
Not Available   

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Russia   
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam   

Africa
South Africa   
Egypt, Ethiopia, Morocco, Nigeria, South Africa   

Europe
Iceland   
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

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

South America
Brazil   
Brazil, Colombia, Guyana   

Deposits in Oceania Continent
  
  

Australia
Not Yet Found   
New South Wales, New Zealand, Queensland   

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Trachyandesite vs Phyllite 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 Trachyandesite and Phyllite Reserves. Trachyandesite is an extrusive igneous rock.. Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks. 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 Trachyandesite vs Phyllite information and Trachyandesite vs Phyllite characteristics in the upcoming sections.

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

More about Trachyandesite and Phyllite

Here you can know more about Trachyandesite and Phyllite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Trachyandesite and Phyllite consists of mineral content and compound content. The mineral content of Trachyandesite includes Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase and mineral content of Phyllite includes Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Trachyandesite vs Phyllite, the texture, color and appearance plays an important role in determining the type of rock. Trachyandesite is available in black, brown, light to dark grey colors whereas, Phyllite is available in black to grey, light greenish grey colors. Appearance of Trachyandesite is Dull and Soft and that of Phyllite is Crinkled or Wavy. Properties of rock is another aspect for Trachyandesite vs Phyllite. The hardness of Trachyandesite is 4-5 and that of Phyllite is 1-2. The types of Trachyandesite are Basaltic Trachyandesite whereas types of Phyllite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Trachyandesite is light to dark brown while that of Phyllite is white. The specific heat capacity of Trachyandesite is 0.84 kJ/Kg K and that of Phyllite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Trachyandesite is heat resistant, pressure resistant, wear resistant whereas Phyllite is heat resistant, pressure resistant, water resistant.

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