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Amphibolite
Amphibolite

Nephelinite
Nephelinite



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Amphibolite vs Nephelinite

1 Definition
1.1 Definition
Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase
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
Unknown
Brazil
1.2.2 Discoverer
Alexandre Brongniart
Unknown
1.3 Etymology
From Amphibole + -ite
from French néphéline, from Greek nephelē
1.4 Class
Metamorphic Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Plutonic
1.6 Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Banded, Foliated, Massive
Aphanitic
2.2 Color
Black, Brown, Green, Grey
Black, Brown, Colourless, Green, Grey, 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
Foliated
Skeletal
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Kitchens
Decorative Aggregates, Homes, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Office Buildings
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
As Dimension Stone, Building houses or walls, Cobblestones, Construction Aggregate, for Road Aggregate, Landscaping, Production of Glass and Ceramics, Roadstone
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture, Small Figurines
3.4 Other Uses
3.4.1 Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork
Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)
4 Types
4.1 Types
Hornblendite
Peralkaline Nephelinite
4.2 Features
Clasts are smooth to touch, Matrix variable, Surfaces are often shiny
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
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
Amphibolite is a coarse-grained metamorphic rock which forms by metamorphism of mafic igneous rocks like basalt and gabbro or from the metamorphism of clay-rich sedimentary rocks like marl or graywacke.
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
Amphibole, Andalusite, Biotite, Calcite, Epidote, Garnet, Hornblade, Kyanite, Magnetite, Olivine, Plagioclase, Pyroxene, Staurolite, Wollastonite
Clinopyroxene, Nepheline, Plagioclase
5.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Ca, CaO, Carbon, Cl, MgO
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
Not Applicable
Contact Metamorphism
5.3.3 Weathering
99% Igneous Rocks Rocks have it !
99% Igneous Rocks Rocks have it !
5.3.4 Types of Weathering
Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical 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, Glacier Erosion, Sea Erosion, Wind Erosion
Chemical Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6-7
6.5
6.1.2 Grain Size
Medium to Coarse Grained
Fine Grained
6.1.3 Fracture
Irregular to Conchoidal
Flat
6.1.4 Streak
White to Grey
White
6.1.5 Porosity
Less Porous
Less Porous
6.1.6 Luster
Vitreous to Dull
Vitreous to Metallic
6.1.7 Compressive Strength
Flint
Not Available
Rank: N/A (Overall)
35.00 N/mm2
Rank: 29 (Overall)
Obsidian
ADD ⊕
6.1.8 Cleavage
Irregular
Imperfect
6.1.9 Toughness
2.3
2.7
6.1.10 Specific Gravity
2.5
2.4-2.9
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
2.85-3.07 g/cm3
2.5-3 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
Not Available
Rank: N/A (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
Russia, Turkey
Japan
7.1.2 Africa
Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda
Rwanda, Tanzania
7.1.3 Europe
Germany, Greece, Iceland, Norway, Poland
Not Yet Found
7.1.4 Others
Not Yet Found
Hawaii Islands
7.2 Deposits in Western Continents
7.2.1 North America
Canada, USA
Canada, USA
7.2.2 South America
Brazil
Colombia
7.3 Deposits in Oceania Continent
7.3.1 Australia
South Australia, Western Australia
Not Yet Found

Amphibolite 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 Amphibolite and Nephelinite Reserves. Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase. 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 Amphibolite vs Nephelinite information and Amphibolite vs Nephelinite characteristics in the upcoming sections.

Amphibolite 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. Amphibolite vs Nephelinite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Amphibolite and Properties of Nephelinite. Learn more about Amphibolite vs Nephelinite in the next section. The interior uses of Amphibolite include Countertops, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels and Kitchens whereas the interior uses of Nephelinite include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Amphibolite and Nephelinite, they have various applications in construction industry. The uses of Amphibolite in construction industry include As dimension stone, Building houses or walls, Cobblestones, Construction aggregate, For road aggregate, Landscaping, Production of glass and ceramics, Roadstone and that of Nephelinite include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate.

More about Amphibolite and Nephelinite

Here you can know more about Amphibolite and Nephelinite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Amphibolite and Nephelinite consists of mineral content and compound content. The mineral content of Amphibolite includes Amphibole, Andalusite, Biotite, Calcite, Epidote, Garnet, Hornblade, Kyanite, Magnetite, Olivine, Plagioclase, Pyroxene, Staurolite, Wollastonite and mineral content of Nephelinite includes Clinopyroxene, Nepheline, Plagioclase. You can also check out the list of all Igneous Rocks. When we have to compare Amphibolite vs Nephelinite, the texture, color and appearance plays an important role in determining the type of rock. Amphibolite is available in black, brown, green, grey colors whereas, Nephelinite is available in black, brown, colourless, green, grey, white colors. Appearance of Amphibolite is Foliated and that of Nephelinite is Skeletal. Properties of rock is another aspect for Amphibolite vs Nephelinite. The hardness of Amphibolite is 6-7 and that of Nephelinite is 6.5. The types of Amphibolite are Hornblendite 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 Amphibolite is white to grey while that of Nephelinite is white. The specific heat capacity of Amphibolite is Not Available 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.Amphibolite is heat resistant, pressure resistant, wear resistant whereas Nephelinite is heat resistant.

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