Anorthosite

Adakite

Anorthosite vs Adakite

Anorthosite

Adakite

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1 Definition

1.1 Definition

Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase

Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs

1.2 History

1.2.1 Origin

Unknown

Adak, Aleutian Islands

1.2.2 Discoverer

Unknown

Defant and Drummond

1.3 Etymology

From French anorthose plagioclase + -ite1

From Adak, Aleutian Islands

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Plutonic

Volcanic

1.6 Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Medium Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Foliated, Glassy

Porphyritic

2.2 Color

Black, Bluish - Grey, Brown, Green, Grey, Light Greenish Grey, Pink, White

Black, Brown, Light to Dark Grey

2.3 Maintenance

Less

2.4 Durability

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

Layered, Banded, Veined and Shiny

Dull and Soft

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration

Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

3.1.2 Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration

As Building Stone, As Facing Stone, Office Buildings

3.1.3 Other Architectural Uses

Curbing

Whetstones

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Cement Manufacture, for Road Aggregate

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Sculpture, Small Figurines

Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork, Curling

Commemorative Tablets, Pottery, Used in aquariums

4 Types

4.1 Types

Proterozoic Anorthosite and Archean Anorthosite

Not Available

4.2 Features

Generally rough to touch, Is one of the oldest rock

Has High structural resistance against erosion and climate, Host rock for Diamond, Very fine grained rock

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

Used

4.3.2 Famous Monuments

Not Applicable

Data Not Available

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Not Applicable

Data Not Available

4.3.5 Pictographs

Not Used

Used

4.3.6 Petroglyphs

Not Used

Used

4.3.7 Figurines

Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Anorthosite is a phaneritic, intrusive igneous rock which is characterized by a predominance of plagioclase feldspar which is almost 90–100%, and a minimal mafic component.

Adakite rocks are formed when the hydrous fluids are released from minerals that break down in metamorphosed basalt, and rise into the mantle they initiate partial melting.

5.2 Composition

5.2.1 Mineral Content

Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene

Olivine, Plagioclase, Pyroxene

5.2.2 Compound Content

Ca, CaO, Chromium(III) Oxide, MgO, Sulfur Trioxide

Aluminium Oxide, MgO, Silicon Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering

Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Wind Erosion

Coastal Erosion, Sea Erosion, Water Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

5-63-4

1 7

6.1.2 Grain Size

Coarse Grained

Fine to Medium Grained

6.1.3 Fracture

Irregular

Conchoidal

6.1.4 Streak

White

Bluish Black

6.1.5 Porosity

Less Porous

6.1.6 Luster

Pearly to Subvitreous

Grainy, Pearly and Vitreous

6.1.7 Compressive Strength

NANA

0.15 450

6.1.8 Cleavage

Irregular

Not Available

6.1.9 Toughness

Not Available

6.1.10 Specific Gravity

2.62-2.82Not Available

0 8.4

6.1.11 Transparency

Translucent

Opaque

6.1.12 Density

2.7-4 g/cm³Not Available

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.84 kJ/Kg KNA

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Not Yet Found

India, Russia

7.1.2 Africa

Not Yet Found

Ethiopia, Somalia, South Africa

7.1.3 Europe

Bulgaria, France, Germany, Greece, Hungary, Italy, Latvia, Lithuania, Malta, Poland, Portugal, Romania, Slovenia, Spain, Sweden, The Czech Republic

Iceland

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada

Canada, USA

7.2.2 South America

Bolivia, Colombia

Brazil

7.3 Deposits in Oceania Continent

7.3.1 Australia

Central Australia, South Australia, Western Australia

Not Yet Found

Anorthosite vs Adakite 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 Anorthosite and Adakite Reserves. Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase. Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs. 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 Anorthosite vs Adakite information and Anorthosite vs Adakite characteristics in the upcoming sections.

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Anorthosite vs Adakite 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. Anorthosite vs Adakite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Anorthosite and Properties of Adakite. Learn more about Anorthosite vs Adakite in the next section. The interior uses of Anorthosite include Decorative aggregates, Floor tiles, Homes and Interior decoration whereas the interior uses of Adakite include Decorative aggregates, Floor tiles, Homes, Hotels and Kitchens. Due to some exceptional properties of Anorthosite and Adakite, they have various applications in construction industry. The uses of Anorthosite in construction industry include As dimension stone, Cement manufacture, For road aggregate and that of Adakite include As dimension stone, Cobblestones, Rail track ballast, Roadstone.

More about Anorthosite and Adakite

Here you can know more about Anorthosite and Adakite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Anorthosite and Adakite consists of mineral content and compound content. The mineral content of Anorthosite includes Amphibole, Clinopyroxene, Ilmenite, Magnetite, Olivine, Orthopyroxene and mineral content of Adakite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Anorthosite vs Adakite, the texture, color and appearance plays an important role in determining the type of rock. Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors whereas, Adakite is available in black, brown, light to dark grey colors. Appearance of Anorthosite is Layered, Banded, Veined and Shiny and that of Adakite is Dull and Soft. Properties of rock is another aspect for Anorthosite vs Adakite. The hardness of Anorthosite is 5-6 and that of Adakite is 3-4. The types of Anorthosite are Proterozoic Anorthosite and Archean Anorthosite whereas types of Adakite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Anorthosite is white while that of Adakite is bluish black. The specific heat capacity of Anorthosite is 0.84 kJ/Kg K and that of Adakite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Anorthosite is heat resistant, impact resistant, pressure resistant, scratch resistant, wear resistant whereas Adakite is heat resistant, pressure resistant, wear resistant.