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Dolomite and Peridotite


Peridotite and Dolomite


Definition

Definition
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight   
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle   

History
  
  

Origin
Southern Alps, France   
Pike County, U.S   

Discoverer
Dolomieu   
Unknown   

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

Class
Sedimentary Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture

Texture
Earthy   
Phaneritic   

Color
Black, Brown, Colourless, Green, Grey, Pink, White   
Dark Greenish - Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Glassy or Pearly   
Rough and Shiny   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Homes, Interior Decoration   
Decorative Aggregates, Interior Decoration   

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

Other Architectural Uses
Not Yet Used   
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   

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)   
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds   

Types

Types
Boninite and Jasperoid   
Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite   

Features
Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits   
Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest 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.   
Peridotites can be formed in two ways: as mantle rocks formed during the accretion and differentiation of the Earth or as cumulate rocks formed by precipitation of olivine and pyroxenes from basaltic magmas.   

Composition
  
  

Mineral Content
Clay Minerals, Pyrite, Quartz, Sulfides   
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene   

Compound Content
NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO   
Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium 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
Not Applicable   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Chemical Erosion   

Properties

Physical Properties
  
  

Hardness
3.5-4   
5.5-6   

Grain Size
Medium to Fine Coarse Grained   
Coarse Grained   

Fracture
Conchoidal   
Irregular   

Streak
White   
White   

Porosity
Less Porous   
Less Porous   

Luster
Vitreous and Pearly   
Shiny   

Compressive Strength
140.00 N/mm2   
15
107.55 N/mm2   
19

Cleavage
Perfect   
Imperfect   

Toughness
1   
2.1   

Specific Gravity
2.8-3   
3-3.01   

Transparency
Transparent to Translucent   
Translucent to Opaque   

Density
2.8-2.9 g/cm3   
3.1-3.4 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
1.26 kJ/Kg K   
5

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India   
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey   

Africa
Morocco, Namibia   
Morocco, South Africa   

Europe
Austria, Italy, Romania, Spain, Switzerland   
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland, Venezuela   

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   
New Zealand, Western Australia   

Summary >>
<< Reserves

All about Dolomite and Peridotite Properties

Know all about Dolomite and Peridotite properties here. All properties of rocks are important as they define the type of rock and its application. Dolomite belongs to Sedimentary Rocks while Peridotite belongs to Igneous Rocks.Texture of Dolomite is Earthy whereas that of Peridotite is Phaneritic. Dolomite appears Glassy or Pearly and Peridotite appears Rough and Shiny. The luster of Dolomite is vitreous and pearly while that of Peridotite is shiny. Dolomite is available in black, brown, colourless, green, grey, pink, white colors whereas Peridotite is available in dark greenish - 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 Peridotite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.

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