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Dunite
Dunite

Foidolite
Foidolite



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Dunite and Foidolite

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1 Definition
1.1 Definition
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Foidolite is a rare type of coarse-grained intrusive igneous rock with a feldspathoid mineral content greater than 60%
1.2 History
1.2.1 Origin
New Zealand
Unknown
1.2.2 Discoverer
Ferdinand von Hochstetter
Unknown
1.3 Etymology
From the name of Dun Mountain, New Zealand, + -ite1
From the mineral feldspathoid which is the main content of rock
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Plutonic
Plutonic
1.6 Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Phaneritic
Earthy
2.2 Color
Dark Greenish - Grey
Black, Brown, Colourless, Green, Grey, Pink, White
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
2.4.2 Scratch Resistant
2.4.3 Stain Resistant
2.4.4 Wind Resistant
2.4.5 Acid Resistant
2.5 Appearance
Rough and Shiny
Dull
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
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, Making natural cement, Raw material for the manufacture of mortar
As Dimension Stone, Cement Manufacture, for Road Aggregate
3.2.2 Medical Industry
Not Yet Used
Taken as a Supplement for Calcium or Magnesium
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture
3.4 Other Uses
3.4.1 Commercial Uses
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds
Cemetery Markers, Commemorative Tablets, Creating Artwork
4 Types
4.1 Types
Not Available
Not Available
4.2 Features
Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock
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
Used
4.3.6 Petroglyphs
Used
Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.
Foidolites 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, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene
Amphibole, Biotite, Feldspar, Olivine, Plagioclase, Pyroxene
5.2.2 Compound Content
Ca, CaO, Fe, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide
Aluminium Oxide, CaO, Iron(III) Oxide, FeO
5.3 Transformation
5.3.1 Metamorphism
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism
5.3.3 Weathering
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Not Applicable
5.3.5 Erosion
5.3.6 Types of Erosion
Coastal Erosion, Glacier Erosion, Water Erosion
Not Applicable
6 Properties
6.1 Physical Properties
6.1.1 Hardness
3.5-41.5
Coal
1 7
6.1.2 Grain Size
Coarse Grained
Medium to Fine Coarse Grained
6.1.3 Fracture
Irregular
Conchoidal
6.1.4 Streak
White
White
6.1.5 Porosity
Less Porous
Very Less Porous
6.1.6 Luster
Shiny
Subvitreous to Dull
6.1.7 Compressive Strength
107.55 N/mm2NA
What Is Obsidian
0.15 450
6.1.8 Cleavage
Imperfect
Perfect
6.1.9 Toughness
2.1
Not Available
6.1.10 Specific Gravity
3-3.012.86
Granite
0 8.4
6.1.11 Transparency
Translucent to Opaque
Translucent
6.1.12 Density
2.84-2.85 g/cm3Not Available
Granite
0 1400
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
1.25 kJ/Kg KNA
What Is Granulite
0.14 3.2
6.2.2 Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey
Russia
7.1.2 Africa
Morocco, South Africa
South Africa, Western Africa
7.1.3 Europe
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland, Venezuela
Not Yet Found
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, USA
Canada, USA
7.2.2 South America
Argentina, Brazil, Colombia, Ecuador, Venezuela
Not Yet Found
7.3 Deposits in Oceania Continent
7.3.1 Australia
New Zealand, Western Australia
Central Australia, Western Australia

All about Dunite and Foidolite Properties

Know all about Dunite and Foidolite properties here. All properties of rocks are important as they define the type of rock and its application. Dunite and Foidolite belong to Igneous Rocks.Texture of Dunite is Phaneritic whereas that of Foidolite is Earthy. Dunite appears Rough and Shiny and Foidolite appears Dull. The luster of Dunite is shiny while that of Foidolite is subvitreous to dull. Dunite is available in dark greenish - grey colors whereas Foidolite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Foidolite are cemetery markers, commemorative tablets, creating artwork.