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Nephelinite
Nephelinite

Charnockite
Charnockite



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Nephelinite
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Nephelinite vs Charnockite

1 Definition
1.1 Definition
Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar
1.2 History
1.2.1 Origin
Brazil
Tamil Nadu, India
1.2.2 Discoverer
Unknown
T. H. Holland
1.3 Etymology
from French néphéline, from Greek nephelē
From Job Charnock, an administtrator of East India Company
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Plutonic
Plutonic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Aphanitic
Granular
2.2 Color
Black, Brown, Colourless, Green, Grey, White
Black, Grey, Orange, Pink, White
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Igneous Rocks Rocks have it !
81% Igneous Rocks Rocks have it !
2.4.2 Scratch Resistant
86% Igneous Rocks Rocks have it !
86% Igneous Rocks Rocks have it !
2.4.3 Stain Resistant
66% Igneous Rocks Rocks have it !
66% Igneous Rocks Rocks have it !
2.4.4 Wind Resistant
49% Igneous Rocks Rocks have it !
49% Igneous Rocks Rocks have it !
2.4.5 Acid Resistant
48% Igneous Rocks Rocks have it !
48% Igneous Rocks Rocks have it !
2.5 Appearance
Skeletal
Veined or Pebbled
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Building Stone, As Facing Stone, Bridges, Paving Stone, Garden Decoration, Office Buildings, Resorts
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate
As Dimension Stone
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture, Small Figurines
3.4 Other Uses
3.4.1 Commercial Uses
Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)
Curling, Gemstone, Laboratory bench tops, Tombstones
4 Types
4.1 Types
Peralkaline Nephelinite
Enderbite
4.2 Features
Host Rock for Lead
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock
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
Not Used
Not Used
4.3.6 Petroglyphs
Not Used
Not Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
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.
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.
5.2 Composition
5.2.1 Mineral Content
Clinopyroxene, Nepheline, Plagioclase
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz
5.2.2 Compound Content
Ca, CaO, Carbon, Cl, MgO
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
5.3 Transformation
5.3.1 Metamorphism
97% Igneous Rocks Rocks have it !
97% Igneous Rocks Rocks have it !
5.3.2 Types of Metamorphism
Contact Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism
5.3.3 Weathering
99% Igneous Rocks Rocks have it !
99% Igneous Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering
5.3.5 Erosion
92% Igneous Rocks Rocks have it !
92% Igneous Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6.5
6-7
6.1.2 Grain Size
Fine Grained
Coarse Grained
6.1.3 Fracture
Flat
Not Available
6.1.4 Streak
White
White
6.1.5 Porosity
Less Porous
Very Less Porous
6.1.6 Luster
Vitreous to Metallic
Not Available
6.1.7 Compressive Strength
Flint
35.00 N/mm2
Rank: 29 (Overall)
Not Available
Rank: N/A (Overall)
Obsidian
ADD ⊕
6.1.8 Cleavage
Imperfect
Not Available
6.1.9 Toughness
2.7
Not Available
6.1.10 Specific Gravity
2.4-2.9
Not Available
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
2.5-3 g/cm3
2.6 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
0.88 kJ/Kg K
Rank: 13 (Overall)
Not Available
Rank: N/A (Overall)
Granulite
ADD ⊕
6.2.2 Resistance
Heat Resistant
Heat Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Japan
India
7.1.2 Africa
Rwanda, Tanzania
East Africa, Ethiopia, Madagascar, Morocco, Mozambique
7.1.3 Europe
Not Yet Found
Albania, Romania, Scotland, United Kingdom
7.1.4 Others
Hawaii Islands
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, USA
USA
7.2.2 South America
Colombia
Brazil, Colombia, Venezuela
7.3 Deposits in Oceania Continent
7.3.1 Australia
Not Yet Found
Central Australia, Western Australia

Nephelinite vs Charnockite 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 Nephelinite and Charnockite Reserves. Nephelinite is a fine-grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite).. Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar. 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 Nephelinite vs Charnockite information and Nephelinite vs Charnockite characteristics in the upcoming sections.

Nephelinite vs Charnockite 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. Nephelinite vs Charnockite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Nephelinite and Properties of Charnockite. Learn more about Nephelinite vs Charnockite in the next section. The interior uses of Nephelinite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Charnockite include Bathrooms, Countertops, Decorative aggregates, Entryways, Floor tiles, Homes, Hotels, Kitchens and Stair treads. Due to some exceptional properties of Nephelinite and Charnockite, they have various applications in construction industry. The uses of Nephelinite in construction industry include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate and that of Charnockite include As dimension stone.

More about Nephelinite and Charnockite

Here you can know more about Nephelinite and Charnockite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Nephelinite and Charnockite consists of mineral content and compound content. The mineral content of Nephelinite includes Clinopyroxene, Nepheline, Plagioclase and mineral content of Charnockite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Nephelinite vs Charnockite, the texture, color and appearance plays an important role in determining the type of rock. Nephelinite is available in black, brown, colourless, green, grey, white colors whereas, Charnockite is available in black, grey, orange, pink, white colors. Appearance of Nephelinite is Skeletal and that of Charnockite is Veined or Pebbled. Properties of rock is another aspect for Nephelinite vs Charnockite. The hardness of Nephelinite is 6.5 and that of Charnockite is 6-7. The types of Nephelinite are Peralkaline Nephelinite whereas types of Charnockite are Enderbite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Nephelinite and Charnockite is white. The specific heat capacity of Nephelinite is 0.88 kJ/Kg K and that of Charnockite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Nephelinite is heat resistant whereas Charnockite is heat resistant, wear resistant.

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