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Dolomite
Dolomite

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Nephelinite



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Dolomite vs Nephelinite

1 Definition
1.1 Definition
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
1.2 History
1.2.1 Origin
Southern Alps, France
Brazil
1.2.2 Discoverer
Dolomieu
Unknown
1.3 Etymology
From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock
from French néphéline, from Greek nephelē
1.4 Class
Sedimentary Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Plutonic
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Earthy
Aphanitic
2.2 Color
Black, Brown, Colourless, Green, Grey, Pink, White
Black, Brown, Colourless, Green, Grey, White
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
59% Sedimentary Rocks Rocks have it !
81% Igneous Rocks Rocks have it !
2.4.2 Scratch Resistant
62% Sedimentary Rocks Rocks have it !
86% Igneous Rocks Rocks have it !
2.4.3 Stain Resistant
43% Sedimentary Rocks Rocks have it !
66% Igneous Rocks Rocks have it !
2.4.4 Wind Resistant
38% Sedimentary Rocks Rocks have it !
49% Igneous Rocks Rocks have it !
2.4.5 Acid Resistant
22% Sedimentary Rocks Rocks have it !
48% Igneous Rocks Rocks have it !
2.5 Appearance
Glassy or Pearly
Skeletal
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Homes, Interior Decoration
3.1.2 Exterior Uses
Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
3.1.3 Other Architectural Uses
Not Yet Used
Curbing
3.2 Industry
3.2.1 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, Cement Manufacture, Construction Aggregate, for Road Aggregate
3.2.2 Medical Industry
Taken as a Supplement for Calcium or Magnesium
Not Yet Used
3.3 Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture, Small Figurines
3.4 Other Uses
3.4.1 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, Soil Conditioner, Source of Magnesia (MgO)
4 Types
4.1 Types
Boninite and Jasperoid
Peralkaline Nephelinite
4.2 Features
Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits
Host Rock for Lead
4.3 Archaeological Significance
4.3.1 Monuments
Used
Used
4.3.2 Famous Monuments
Data Not Available
Data Not Available
4.3.3 Sculpture
Used
Used
4.3.4 Famous Sculptures
Data Not Available
Data Not Available
4.3.5 Pictographs
Used
Not Used
4.3.6 Petroglyphs
Used
Not Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Present
Absent
5 Formation
5.1 Formation
Dolomite rocks are originally deposited as calcite or aragonite rich limestone, but during diagenesis process, the calcite or aragonite is transformed into dolomite.
Nephelinite 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.
5.2 Composition
5.2.1 Mineral Content
Clay Minerals, Pyrite, Quartz, Sulfides
Clinopyroxene, Nepheline, Plagioclase
5.2.2 Compound Content
NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO
Ca, CaO, Carbon, Cl, MgO
5.3 Transformation
5.3.1 Metamorphism
19% Sedimentary Rocks Rocks have it !
97% Igneous Rocks Rocks have it !
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Contact Metamorphism
5.3.3 Weathering
78% Sedimentary Rocks Rocks have it !
99% Igneous Rocks Rocks have it !
5.3.4 Types of Weathering
Not Applicable
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.5 Erosion
86% Sedimentary Rocks Rocks have it !
92% Igneous Rocks Rocks have it !
5.3.6 Types of Erosion
Not Applicable
Chemical Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
3.5-4
6.5
6.1.2 Grain Size
Medium to Fine Coarse Grained
Fine Grained
6.1.3 Fracture
Conchoidal
Flat
6.1.4 Streak
White
White
6.1.5 Porosity
Less Porous
Less Porous
6.1.6 Luster
Vitreous and Pearly
Vitreous to Metallic
6.1.7 Compressive Strength
Flint
140.00 N/mm2
Rank: 15 (Overall)
35.00 N/mm2
Rank: 29 (Overall)
Obsidian
ADD ⊕
6.1.8 Cleavage
Perfect
Imperfect
6.1.9 Toughness
1
2.7
6.1.10 Specific Gravity
2.8-3
2.4-2.9
6.1.11 Transparency
Transparent to Translucent
Opaque
6.1.12 Density
2.8-2.9 g/cm3
2.5-3 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
0.92 kJ/Kg K
Rank: 10 (Overall)
0.88 kJ/Kg K
Rank: 13 (Overall)
Granulite
ADD ⊕
6.2.2 Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
China, India
Japan
7.1.2 Africa
Morocco, Namibia
Rwanda, Tanzania
7.1.3 Europe
Austria, Italy, Romania, Spain, Switzerland
Not Yet Found
7.1.4 Others
Not Yet Found
Hawaii Islands
7.2 Deposits in Western Continents
7.2.1 North America
Mexico, USA
Canada, USA
7.2.2 South America
Brazil, Colombia
Colombia
7.3 Deposits in Oceania Continent
7.3.1 Australia
New South Wales, Queensland, Yorke Peninsula
Not Yet Found

Dolomite vs Nephelinite 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 Nephelinite Reserves. Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight. Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. 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 Nephelinite information and Dolomite vs Nephelinite characteristics in the upcoming sections.

Dolomite vs Nephelinite 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 Nephelinite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Dolomite and Properties of Nephelinite. Learn more about Dolomite vs Nephelinite in the next section. The interior uses of Dolomite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Nephelinite include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Dolomite and Nephelinite, 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 Nephelinite include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate.

More about Dolomite and Nephelinite

Here you can know more about Dolomite and Nephelinite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Dolomite and Nephelinite consists of mineral content and compound content. The mineral content of Dolomite includes Clay Minerals, Pyrite, Quartz, Sulfides and mineral content of Nephelinite includes Clinopyroxene, Nepheline, Plagioclase. You can also check out the list of all Sedimentary Rocks. When we have to compare Dolomite vs Nephelinite, the texture, color and appearance plays an important role in determining the type of rock. Dolomite is available in black, brown, colourless, green, grey, pink, white colors whereas, Nephelinite is available in black, brown, colourless, green, grey, white colors. Appearance of Dolomite is Glassy or Pearly and that of Nephelinite is Skeletal. Properties of rock is another aspect for Dolomite vs Nephelinite. The hardness of Dolomite is 3.5-4 and that of Nephelinite is 6.5. The types of Dolomite are Boninite and Jasperoid whereas types of Nephelinite are Peralkaline Nephelinite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Dolomite and Nephelinite is white. The specific heat capacity of Dolomite is 0.92 kJ/Kg K and that of Nephelinite is 0.88 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 Nephelinite is heat resistant.