Home
Compare Rocks


Rhyolite vs Epidosite


Epidosite vs Rhyolite


Definition

Definition
Rhyolite is a fine-grained igneous rock which is rich in silica  
Epidosite is a highly altered epidote and quartz bearing rock which is a type of metasomatite, essentially altered basalt  

History
  
  

Origin
North America  
-  

Discoverer
Ferdinand von Richthofen  
Unknown  

Etymology
From German Rhyolit, from Greek rhuax lava stream + lithos stone  
-  

Class
Igneous Rocks  
Igneous Rocks  

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

Family
  
  

Group
Volcanic  
Volcanic  

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

Texture

Texture
Aphanitic, Glassy, Porphyritic  
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular  

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

Maintenance
More  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
Yes  

Wind Resistant
Yes  
Yes  

Acid Resistant
Yes  
No  

Appearance
Banded  
Dull and Soft  

Uses

Architecture
  
  

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

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

Other Architectural Uses
-  
Curbing  

Industry
  
  

Construction Industry
Arrowheads, As Dimension Stone, Building houses or walls, Construction Aggregate, Cutting Tool, for Road Aggregate, Knives  
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone  

Medical Industry
-  
-  

Antiquity Uses
Artifacts  
Artifacts, Monuments, Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Gemstone, Laboratory bench tops, Jewelry  
Commemorative Tablets, Creating Artwork  

Types

Types
Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks.  
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite  

Features
Acidic in nature, Available in lots of colors  
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
Rhyolite is a felsic extrusive rock and due to its high silica content, rhyolite lava is very viscous and is volcanic equivalent of granite.  
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
Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz  
Olivine, Plagioclase, Pyroxene  

Compound Content
Ca, Fe, Potassium Oxide, Mg, Potassium, Silicon Dioxide, Sodium  
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, 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, Sea Erosion, Water Erosion, Wind Erosion  
-  

Properties

Physical Properties
  
  

Hardness
6-7  
6  

Grain Size
Large and Coarse Grained  
Fine to Coarse Grained  

Fracture
Sub-conchoidal  
Conchoidal  

Streak
-  
White to Grey  

Porosity
Highly Porous  
Less Porous  

Luster
Earthy  
-  

Compressive Strength
140.00 N/mm2  
23
160.00 N/mm2  
21

Cleavage
-  
-  

Toughness
2  
2.3  

Specific Gravity
2.65-2.67  
2.8-3  

Transparency
Opaque  
Opaque  

Density
2.4-2.6 g/cm3  
-9999 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.71 kJ/Kg K  
23
0.84 kJ/Kg K  
15

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India  
India, Russia  

Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa  
South Africa  

Europe
Germany, Iceland, Ireland, Italy, Spain  
Iceland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
Canada, USA  

South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela  
Brazil  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Queensland, Western Australia  
-  

Definition >>
<< All

Rhyolite 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 Rhyolite and Epidosite Reserves. Rhyolite is a fine-grained igneous rock which is rich in silica. 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 Rhyolite vs Epidosite information and Rhyolite vs Epidosite characteristics in the upcoming sections.

Compare Igneous Rocks

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

More about Rhyolite and Epidosite

Here you can know more about Rhyolite and Epidosite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Rhyolite and Epidosite consists of mineral content and compound content. The mineral content of Rhyolite includes Biotite, Feldspar, Hornblade, Plagioclase, Pyroxene, Quartz 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 Rhyolite vs Epidosite, the texture, color and appearance plays an important role in determining the type of rock. Rhyolite is available in grey, white, light black colors whereas, Epidosite is available in black, brown, light to dark grey colors. Appearance of Rhyolite is Banded and that of Epidosite is Dull and Soft. Properties of rock is another aspect for Rhyolite vs Epidosite. The hardness of Rhyolite is 6-7 and that of Epidosite is 6. The types of Rhyolite are Pumice Rocks, Obsidian Rocks, Perlite Rocks, Porphyritic Rocks. 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 Rhyolite is while that of Epidosite is white to grey. The specific heat capacity of Rhyolite is 0.71 kJ/Kg K and that of Epidosite 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.Rhyolite is heat resistant, wear resistant whereas Epidosite is heat resistant, pressure resistant, wear resistant.

Igneous Rocks

Igneous Rocks

» More Igneous Rocks

Compare Igneous Rocks

» More Compare Igneous Rocks