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Dunite
Dunite

Alkali Feldspar Granite
Alkali Feldspar Granite



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Dunite
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Alkali Feldspar Granite

Dunite vs Alkali Feldspar Granite

Definition

Definition

Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Alkali feldspar granite, also known as red granite, is a felsic igneous rock and a type of granite rich in the mineral potassium feldspar

History

Origin

New Zealand
-

Discoverer

Ferdinand von Hochstetter
Unknown

Etymology

From the name of Dun Mountain, New Zealand, + -ite1
From mineral fledspar which is present in large quantities in this rock

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

Plutonic
Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock

Texture

Texture

Phaneritic
Phaneritic

Color

Dark Greenish - Grey
Black, Grey, Orange, Pink, White

Maintenance

Less
More

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough and Shiny
Veined or Pebbled

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads

Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Bridges, Paving Stone, Near Swimming Pools, Office Buildings, Resorts

Other Architectural Uses

Curbing
Curbing

Industry

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

Medical Industry

-
-

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds
Curling, Gemstone, Laboratory bench tops, Tombstones

Types

Types

Dunite
Granite

Features

Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.
Alkali fledspar granite is an intrusive igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks.

Composition

Mineral Content

Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz

Compound Content

Ca, CaO, Fe, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Burial Metamorphism, Contact Metamorphism, Impact Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Weathering

Erosion

Types of Erosion

Coastal Erosion, Glacier Erosion, Water Erosion
Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3.5-46-7
1 7
👆🏻

Grain Size

Coarse Grained
Large and Coarse Grained

Fracture

Irregular
-

Streak

White
White

Porosity

Less Porous
Less Porous

Luster

Shiny
Dull to Grainy with Sporadic parts Pearly and Vitreous

Compressive Strength

107.55 N/mm2175.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

2.1
-

Specific Gravity

3-3.012.6-2.7
0 8.4
👆🏻

Transparency

Translucent to Opaque
Opaque

Density

2.84-2.85 g/cm32.6-2.8 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

1.25 kJ/Kg K0.79 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

Africa

Morocco, South Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Europe

Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic

Others

-
-

Deposits in Western Continents

North America

Canada, USA
Canada, USA

South America

Argentina, Brazil, Colombia, Ecuador, Venezuela
-

Deposits in Oceania Continent

Australia

New Zealand, Western Australia
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Dunite vs Alkali Feldspar Granite 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 Dunite and Alkali Feldspar Granite Reserves. Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. Alkali feldspar granite, also known as red granite, is a felsic igneous rock and a type of granite rich in the mineral potassium 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 Dunite vs Alkali Feldspar Granite information and Dunite vs Alkali Feldspar Granite characteristics in the upcoming sections.

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

More about Dunite and Alkali Feldspar Granite

Here you can know more about Dunite and Alkali Feldspar Granite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Dunite and Alkali Feldspar Granite consists of mineral content and compound content. The mineral content of Dunite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene and mineral content of Alkali Feldspar Granite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Dunite vs Alkali Feldspar Granite, the texture, color and appearance plays an important role in determining the type of rock. Dunite is available in dark greenish - grey colors whereas, Alkali Feldspar Granite is available in black, grey, orange, pink, white colors. Appearance of Dunite is Rough and Shiny and that of Alkali Feldspar Granite is Veined or Pebbled. Properties of rock is another aspect for Dunite vs Alkali Feldspar Granite. The hardness of Dunite is 3.5-4 and that of Alkali Feldspar Granite is 6-7. The types of Dunite are Dunite whereas types of Alkali Feldspar Granite are Granite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Dunite and Alkali Feldspar Granite is white. The specific heat capacity of Dunite is 1.25 kJ/Kg K and that of Alkali Feldspar Granite is 0.79 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Dunite is heat resistant, pressure resistant, wear resistant whereas Alkali Feldspar Granite is heat resistant, wear resistant.