Adakite

Cataclasite

Adakite and Cataclasite

Adakite

Cataclasite

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Definition

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

Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix

History

Origin

Adak, Aleutian Islands

Swiss Alps, Europe

Discoverer

Defant and Drummond

Michael Tellinger

Etymology

From Adak, Aleutian Islands

From the Italian word cataclasi

Class

Igneous Rocks

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Porphyritic

Clastic

Color

Black, Brown, Light to Dark Grey

Brown, Green, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Soft

Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

Decorative Aggregates, Homes

Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

As Building Stone, As Facing Stone, Paving Stone

Other Architectural Uses

Whetstones

Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

Antiquity Uses

Monuments, Sculpture, Small Figurines

Artifacts

Other Uses

Commercial Uses

Commemorative Tablets, Pottery, Used in aquariums

Commemorative Tablets, Creating Artwork

Types

Intermediate volcanic rock

Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite

Features

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

Easily splits into thin plates, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

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.

Cataclasiste rocks mainly form by pressure deep under the Earth's surface, from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Composition

Mineral Content

Olivine, Plagioclase, Pyroxene

Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz

Compound Content

Aluminium Oxide, MgO, Silicon Dioxide

Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Chemical Weathering, Mechanical Weathering

Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Coastal Erosion, Sea Erosion, Water Erosion

Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3-43-4

1 7

👆🏻

Grain Size

Fine to Medium Grained

Fine Grained

Fracture

Conchoidal

Streak

Bluish Black

Black

Porosity

Less Porous

Luster

Grainy, Pearly and Vitreous

Vitreous

Compressive Strength

200.00 N/mm²50.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

-99992.1

0 8.4

👆🏻

Transparency

Opaque

Translucent to Opaque

Density

-9999 g/cm³2.9-3.1 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Russia

China, India, Russia, Saudi Arabia, South Korea

Africa

Ethiopia, Somalia, South Africa

Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa

Europe

Iceland

England, Finland, France, Spain, United Kingdom

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil

Argentina, Colombia

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

All about Adakite and Cataclasite Properties

Know all about Adakite and Cataclasite properties here. All properties of rocks are important as they define the type of rock and its application. Adakite belongs to Igneous Rocks while Cataclasite belongs to Metamorphic Rocks.Texture of Adakite is Porphyritic whereas that of Cataclasite is Clastic. Adakite appears Dull and Soft and Cataclasite appears Dull and Banded. The luster of Adakite is grainy, pearly and vitreous while that of Cataclasite is vitreous. Adakite is available in black, brown, light to dark grey colors whereas Cataclasite is available in brown, green, white, yellow colors. The commercial uses of Adakite are commemorative tablets, pottery, used in aquariums and that of Cataclasite are commemorative tablets, creating artwork.