Eclogite

Cataclasite

Eclogite and Cataclasite

Eclogite

Cataclasite

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Definition

Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature

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

Swiss Alps, Europe

Discoverer

René Just Haüy

Michael Tellinger

Etymology

From French, Greek eklogē selection with reference to the selective content of the rock + -ite1

From the Italian word cataclasi

Class

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Earthy

Clastic

Color

Black, Brown, Green, Grey, Pink, White

Brown, Green, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull, Banded and Foilated

Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Homes

Exterior Uses

Paving Stone, Garden Decoration

As Building Stone, As Facing Stone, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Medical Industry

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Creating Artwork, Gemstone

Commemorative Tablets, Creating Artwork

Types

Eclogite

Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite

Features

Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest 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

Eclogite forms from high-pressure metamorphism of mafic igneous rocks mainly, basalt or gabbro as it plunges into the mantle in a subduction zone.

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

Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite

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

Compound Content

Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium

Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion

Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3.5-43-4

1 7

👆🏻

Grain Size

Fine Grained

Fracture

Streak

White

Black

Porosity

Less Porous

Luster

Subvitreous to Dull

Vitreous

Compressive Strength

200.00 N/mm²50.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

Specific Gravity

2.86-2.872.1

0 8.4

👆🏻

Transparency

Opaque

Translucent to Opaque

Density

3.2-3.6 g/cm³2.9-3.1 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.75 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey

China, India, Russia, Saudi Arabia, South Korea

Africa

Ethiopia, Morocco, South Africa

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

Europe

France, Germany, Italy, Norway, Scotland

England, Finland, France, Spain, United Kingdom

Others

Greenland

Deposits in Western Continents

North America

Canada, Costa Rica, Panama, USA

Canada, USA

South America

Argentina, Brazil, Colombia, Ecuador

Argentina, Colombia

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland

Central Australia, Western Australia

All about Eclogite and Cataclasite Properties

Know all about Eclogite and Cataclasite properties here. All properties of rocks are important as they define the type of rock and its application. Eclogite and Cataclasite belong to Metamorphic Rocks.Texture of Eclogite is Earthy whereas that of Cataclasite is Clastic. Eclogite appears Dull, Banded and Foilated and Cataclasite appears Dull and Banded. The luster of Eclogite is subvitreous to dull while that of Cataclasite is vitreous. Eclogite is available in black, brown, green, grey, pink, white colors whereas Cataclasite is available in brown, green, white, yellow colors. The commercial uses of Eclogite are creating artwork, gemstone and that of Cataclasite are commemorative tablets, creating artwork.