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Dolomite vs Andesite


Andesite vs Dolomite


Definition

Definition
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight  
Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava  

History
  
  

Origin
Southern Alps, France  
North America  

Discoverer
Dolomieu  
Theodor von Gümbel  

Etymology
From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock  
From Andes mountains, where it is found in abundance  

Class
Sedimentary Rocks  
Igneous Rocks  

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

Family
  
  

Group
-  
Volcanic  

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

Texture

Texture
Earthy  
Aphanitic to Porphyritic  

Color
Black, Brown, Green, Grey, Pink, White  
Bluish - Grey, Grey, Pink, Yellow  

Maintenance
Less  
More  

Durability
Durable  
Durable  

Water Resistant
No  
No  

Scratch Resistant
Yes  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
Yes  

Appearance
Glassy or Pearly  
Dull and Soft  

Uses

Architecture
  
  

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

Exterior Uses
Garden Decoration, Office Buildings  
Office Buildings, Roof Tiles  

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  
Cobblestones, Construction Aggregate, for Road Aggregate  

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  
Icelandite  

Features
Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits  
Generally rough to touch, High silica content, Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
Middle of the Earth in Ecuador  

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.  
Andesite is a fine-grained igneous rock that forms when the magma is erupted onto the surface and is crystallized quickly.   

Composition
  
  

Mineral Content
Clay Minerals, Pyrite, Quartz, Sulfides  
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon  

Compound Content
NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO  
Silicon Dioxide  

Transformation
  
  

Metamorphism
Yes  
Yes  

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

Weathering
No  
Yes  

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

Erosion
No  
Yes  

Types of Erosion
-  
Chemical Erosion, Coastal Erosion, Glacier Erosion  

Properties

Physical Properties
  
  

Hardness
3.5-4  
7  

Grain Size
Medium to Fine Coarse Grained  
Very fine-grained  

Fracture
Conchoidal  
Uneven  

Streak
White  
White  

Porosity
Less Porous  
Less Porous  

Luster
Vitreous and Pearly  
Vitreous  

Compressive Strength
140.00 N/mm2  
23
225.00 N/mm2  
8

Cleavage
Perfect  
-  

Toughness
1  
1.1  

Specific Gravity
2.8-3  
2.5-2.8  

Transparency
Transparent to Translucent  
Opaque  

Density
2.8-2.9 g/cm3  
2.11-2.36 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K  
10
2.39 kJ/Kg K  
2

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India  
India, Indonesia, Japan, Nepal, South Korea  

Africa
Morocco, Namibia  
Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania  

Europe
Austria, Italy, Romania, Spain, Switzerland  
Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Mexico, USA  
Mexico, USA  

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

Deposits in Oceania Continent
  
  

Australia
New South Wales, Queensland, Yorke Peninsula  
New South Wales, New Zealand, Western Australia  

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Dolomite vs Andesite 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 Andesite Reserves. Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight. Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. 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 Andesite information and Dolomite vs Andesite characteristics in the upcoming sections.

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Dolomite vs Andesite 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 Andesite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Dolomite and Properties of Andesite. Learn more about Dolomite vs Andesite in the next section. The interior uses of Dolomite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Andesite include Decorative aggregates, Floor tiles, Homes, Interior decoration and Kitchens. Due to some exceptional properties of Dolomite and Andesite, 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 Andesite include Cobblestones, Construction aggregate, For road aggregate.

More about Dolomite and Andesite

Here you can know more about Dolomite and Andesite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Dolomite and Andesite consists of mineral content and compound content. The mineral content of Dolomite includes Clay Minerals, Pyrite, Quartz, Sulfides and mineral content of Andesite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon. You can also check out the list of all Sedimentary Rocks. When we have to compare Dolomite vs Andesite, 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, Andesite is available in bluish - grey, grey, pink, yellow colors. Appearance of Dolomite is Glassy or Pearly and that of Andesite is Dull and Soft. Properties of rock is another aspect for Dolomite vs Andesite. The hardness of Dolomite is 3.5-4 and that of Andesite is 7. The types of Dolomite are Boninite and Jasperoid whereas types of Andesite are Icelandite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Dolomite and Andesite is white. The specific heat capacity of Dolomite is 0.92 kJ/Kg K and that of Andesite is 2.39 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 Andesite is heat resistant, pressure resistant, wear resistant.

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