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Dolomite vs Epidosite


Epidosite vs Dolomite


Definition

Definition
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight  
Epidosite is a highly altered epidote and quartz bearing rock which is a type of metasomatite, essentially altered basalt  

History
  
  

Origin
Southern Alps, France  
-  

Discoverer
Dolomieu  
Unknown  

Etymology
From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock  
-  

Class
Sedimentary Rocks  
Igneous Rocks  

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

Family
  
  

Group
-  
Volcanic  

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

Texture

Texture
Earthy  
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
No  
Yes  

Acid Resistant
No  
No  

Appearance
Glassy or Pearly  
Dull and Soft  

Uses

Architecture
  
  

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

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

Other Architectural Uses
-  
Curbing  

Industry
  
  

Construction Industry
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock  
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone  

Medical Industry
Taken as a Supplement for Calcium or Magnesium  
-  

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

Other Uses
  
  

Commercial Uses
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)  
Commemorative Tablets, Creating Artwork  

Types

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

Features
Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits  
Has High structural resistance against erosion and climate, Very fine grained rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Present  
Absent  

Formation

Formation
Dolomite rocks are originally deposited as calcite or aragonite rich limestone, but during diagenesis process, the calcite or aragonite is transformed into dolomite.  
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
Clay Minerals, Pyrite, Quartz, Sulfides  
Olivine, Plagioclase, Pyroxene  

Compound Content
NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO  
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  
Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism  

Weathering
No  
Yes  

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

Erosion
No  
No  

Types of Erosion
-  
-  

Properties

Physical Properties
  
  

Hardness
3.5-4  
6  

Grain Size
Medium to Fine Coarse Grained  
Fine to Coarse Grained  

Fracture
Conchoidal  
Conchoidal  

Streak
White  
White to Grey  

Porosity
Less Porous  
Less Porous  

Luster
Vitreous and Pearly  
-  

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

Cleavage
Perfect  
-  

Toughness
1  
2.3  

Specific Gravity
2.8-3  
2.8-3  

Transparency
Transparent to Translucent  
Opaque  

Density
2.8-2.9 g/cm3  
-9999 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K  
10
0.84 kJ/Kg K  
15

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India  
India, Russia  

Africa
Morocco, Namibia  
South Africa  

Europe
Austria, Italy, Romania, Spain, Switzerland  
Iceland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Mexico, USA  
Canada, USA  

South America
Brazil, Colombia  
Brazil  

Deposits in Oceania Continent
  
  

Australia
New South Wales, Queensland, Yorke Peninsula  
-  

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Dolomite 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 Dolomite and Epidosite Reserves. Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight. 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 Dolomite vs Epidosite information and Dolomite vs Epidosite characteristics in the upcoming sections.

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Dolomite 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. Dolomite vs Epidosite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Dolomite and Properties of Epidosite. Learn more about Dolomite vs Epidosite in the next section. The interior uses of Dolomite include Decorative aggregates, Homes 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 Dolomite and Epidosite, they have various applications in construction industry. The uses of Dolomite in construction industry include As a flux in the production of steel and pig iron, As a sintering agent in steel industry to process iron ore, As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics, Serves as an oil and gas reservoir rock and that of Epidosite include As dimension stone, Cobblestones, Rail track ballast, Roadstone.

More about Dolomite and Epidosite

Here you can know more about Dolomite and Epidosite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Dolomite and Epidosite consists of mineral content and compound content. The mineral content of Dolomite includes Clay Minerals, Pyrite, Quartz, Sulfides and mineral content of Epidosite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Sedimentary Rocks. When we have to compare Dolomite vs Epidosite, the texture, color and appearance plays an important role in determining the type of rock. Dolomite is available in black, brown, green, grey, pink, white colors whereas, Epidosite is available in black, brown, light to dark grey colors. Appearance of Dolomite is Glassy or Pearly and that of Epidosite is Dull and Soft. Properties of rock is another aspect for Dolomite vs Epidosite. The hardness of Dolomite is 3.5-4 and that of Epidosite is 6. The types of Dolomite are Boninite and Jasperoid 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 Dolomite is white while that of Epidosite is white to grey. The specific heat capacity of Dolomite is 0.92 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.Dolomite is heat resistant, pressure resistant, wear resistant whereas Epidosite is heat resistant, pressure resistant, wear resistant.

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