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Dolomite and Adakite


Adakite and Dolomite


Definition

Definition
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight   
Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs   

History
  
  

Origin
Southern Alps, France   
Adak, Aleutian Islands   

Discoverer
Dolomieu   
Defant and Drummond   

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

Class
Sedimentary Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Volcanic   

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

Texture

Texture
Earthy   
Porphyritic   

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

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
No   

Scratch Resistant
Yes   
No   

Stain Resistant
No   
No   

Wind Resistant
No   
Yes   

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, Hotels, Kitchens   

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

Other Architectural Uses
Not Yet Used   
Whetstones   

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   
Not Yet Used   

Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines   
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, Pottery, Used in aquariums   

Types

Types
Boninite and Jasperoid   
Not Available   

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, Host rock for Diamond, Very fine grained rock   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Used   

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.   
Adakite rocks are formed when the hydrous fluids are released from minerals that break down in metamorphosed basalt, and rise into the mantle they initiate partial melting.   

Composition
  
  

Mineral Content
Clay Minerals, Pyrite, Quartz, Sulfides   
Olivine, Plagioclase, Pyroxene   

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

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
No   
Yes   

Types of Weathering
Not Applicable   
Chemical Weathering, Mechanical Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Coastal Erosion, Sea Erosion, Water Erosion   

Properties

Physical Properties
  
  

Hardness
3.5-4   
3-4   

Grain Size
Medium to Fine Coarse Grained   
Fine to Medium Grained   

Fracture
Conchoidal   
Conchoidal   

Streak
White   
Bluish Black   

Porosity
Less Porous   
Less Porous   

Luster
Vitreous and Pearly   
Grainy, Pearly and Vitreous   

Compressive Strength
140.00 N/mm2   
15
Not Available   

Cleavage
Perfect   
Not Available   

Toughness
1   
Not Available   

Specific Gravity
2.8-3   
Not Available   

Transparency
Transparent to Translucent   
Opaque   

Density
2.8-2.9 g/cm3   
Not Available   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
Not Available   

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   
Ethiopia, Somalia, South Africa   

Europe
Austria, Italy, Romania, Spain, Switzerland   
Iceland   

Others
Not Yet Found   
Not Yet Found   

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   
Not Yet Found   

Summary >>
<< Reserves

All about Dolomite and Adakite Properties

Know all about Dolomite and Adakite properties here. All properties of rocks are important as they define the type of rock and its application. Dolomite belongs to Sedimentary Rocks while Adakite belongs to Igneous Rocks.Texture of Dolomite is Earthy whereas that of Adakite is Porphyritic. Dolomite appears Glassy or Pearly and Adakite appears Dull and Soft. The luster of Dolomite is vitreous and pearly while that of Adakite is grainy, pearly and vitreous. Dolomite is available in black, brown, colourless, green, grey, pink, white colors whereas Adakite is available in black, brown, light to dark grey colors. The commercial uses of Dolomite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) and that of Adakite are commemorative tablets, pottery, used in aquariums.

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