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Felsite vs Epidosite


Epidosite vs Felsite


Definition

Definition
Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition   
Epidosite is a highly altered epidote and quartz bearing rock which is a type of metasomatite, essentially altered basalt   

History
  
  

Discoverer
Unknown   
Unknown   

Etymology
From English feldspar and -ite   
Not Available   

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   
Coarse Grained Rock, Fine Grained Rock, Opaque Rock   

Texture

Texture
Arborescent Patterned, Vitreous   
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular   

Color
Black, Blue, Brown, Green, Orange, Red, Tan, Yellow   
Black, Brown, Light to Dark Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
Yes   
Yes   

Acid Resistant
No   
No   

Appearance
Layered, Banded, Veined and Shiny   
Dull and Soft   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points   
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone   

Medical Industry
Surgery   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts, Monuments, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
Mirror, Jewelry   
Commemorative Tablets, Creating Artwork   

Types

Types
Not Available   
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite   

Features
Available in Lots of Colors and Patterns, Clasts are smooth to touch, Splintery, Very fine grained rock   
Has High structural resistance against erosion and climate, Very fine grained rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

Sculpture
Not Yet Used   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Not Yet Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Felsite 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.   
Epidosite 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
Feldspar, Iron Oxides   
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
Yes   
Yes   

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

Weathering
Yes   
Yes   

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

Erosion
Yes   
No   

Types of Erosion
Chemical Erosion, Glacier Erosion, Water Erosion   
Not Applicable   

Properties

Physical Properties
  
  

Hardness
5-5.5   
6   

Grain Size
Fine Grained   
Fine to Coarse Grained   

Fracture
Conchoidal   
Conchoidal   

Streak
White   
White to Grey   

Porosity
Very Less Porous   
Less Porous   

Luster
Vitreous   
Not Available   

Compressive Strength
0.15 N/mm2   
33
Not Available   

Cleavage
Non-Existent   
Not Available   

Toughness
Not Available   
2.3   

Specific Gravity
2.6-2.7   
2.8-3   

Transparency
Translucent   
Opaque   

Density
2.6 g/cm3   
Not Available   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
Not Available   

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Indonesia, Japan, Russia   
India, Russia   

Africa
Kenya   
South Africa   

Europe
Greece, Hungary, Iceland, Italy, Turkey   
Iceland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA   
Canada, USA   

South America
Argentina, Chile, Ecuador, Peru   
Brazil   

Deposits in Oceania Continent
  
  

Australia
New Zealand   
Not Yet Found   

Definition >>
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Felsite vs Epidosite 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 Felsite and Epidosite Reserves. Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. Epidosite is a highly altered epidote and quartz bearing rock which is a type of metasomatite, essentially altered basalt. 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 Felsite vs Epidosite information and Felsite vs Epidosite characteristics in the upcoming sections.

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Felsite vs Epidosite 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. Felsite vs Epidosite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Felsite and Properties of Epidosite. Learn more about Felsite vs Epidosite in the next section. The interior uses of Felsite include Decorative aggregates, Flooring and Interior decoration whereas the interior uses of Epidosite include Decorative aggregates, Floor tiles, Homes, Hotels and Interior decoration. Due to some exceptional properties of Felsite and Epidosite, they have various applications in construction industry. The uses of Felsite in construction industry include Arrowheads, Cutting tool, Knives, Scrapers, Spear points and that of Epidosite include As dimension stone, Cobblestones, Rail track ballast, Roadstone.

More about Felsite and Epidosite

Here you can know more about Felsite and Epidosite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Felsite and Epidosite consists of mineral content and compound content. The mineral content of Felsite includes Feldspar, Iron Oxides and mineral content of Epidosite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Felsite vs Epidosite, the texture, color and appearance plays an important role in determining the type of rock. Felsite is available in black, blue, brown, green, orange, red, tan, yellow colors whereas, Epidosite is available in black, brown, light to dark grey colors. Appearance of Felsite is Layered, Banded, Veined and Shiny and that of Epidosite is Dull and Soft. Properties of rock is another aspect for Felsite vs Epidosite. The hardness of Felsite is 5-5.5 and that of Epidosite is 6. The types of Felsite are Not Available whereas types of Epidosite 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 Felsite is white while that of Epidosite is white to grey. The specific heat capacity of Felsite is 0.92 kJ/Kg K and that of Epidosite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Felsite is heat resistant, impact resistant whereas Epidosite is heat resistant, pressure resistant, wear resistant.

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