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What is Eclogite?



Definition

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

History

Origin
-

Discoverer
René Just Haüy

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

Class
Metamorphic Rocks

Sub-Class
Durable Rock, Medium Hardness Rock

Family

Group
-

Other Categories
Fine Grained Rock, Opaque Rock

Texture

Texture
Earthy

Color
Black, Brown, Green, Grey, Pink, White

Maintenance
Less

Durability
Durable

Water Resistant
No

Scratch Resistant
Yes

Stain Resistant
Yes

Wind Resistant
Yes

Acid Resistant
No

Appearance
Dull, Banded and Foilated

Uses

Architecture

Interior Uses
Decorative Aggregates, Interior Decoration

Exterior Uses
Paving Stone, Garden Decoration

Other Architectural Uses
Curbing

Industry

Construction Industry
-

Medical Industry
In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

Antiquity Uses
Artifacts

Other Uses

Commercial Uses
Creating Artwork, Gemstone

Types

Types
Eclogite

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

Archaeological Significance

Monuments
-

Famous Monuments
-

Sculpture
-

Famous Sculptures
-

Pictographs
-

Petroglyphs
-

Figurines
-

Fossils
Absent

Formation

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.

Composition

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

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

Transformation

Metamorphism
No

Types of Metamorphism
-

Weathering
Yes

Types of Weathering
Mechanical Weathering

Erosion
Yes

Types of Erosion
Chemical Erosion, Sea Erosion

Properties

Physical Properties

Hardness
3.5-4

Grain Size
Fine Grained

Fracture
-

Streak
White

Porosity
Less Porous

Luster
Subvitreous to Dull

Compressive Strength
200.00 N/mm2 13

Cleavage
Perfect

Toughness
-

Specific Gravity
2.86-2.87

Transparency
Opaque

Density
3.2-3.6 g/cm3

Thermal Properties

Specific Heat Capacity
0.75 kJ/Kg K 20

Resistance
Heat Resistant

Reserves

Deposits in Eastern Continents

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

Africa
Ethiopia, Morocco, South Africa

Europe
France, Germany, Italy, Norway, Scotland

Others
Greenland

Deposits in Western Continents

North America
Canada, Costa Rica, Panama, USA

South America
Argentina, Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia
Central Australia, New Zealand, Queensland

Summary >>
<< Reserves

Metamorphic Rocks

Learn more about Properties of Eclogite

What is Eclogite? In this section, we will learn more about properties of Eclogite i.e. physical and thermal properties. Physical properties of Eclogite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Eclogite is 200.00 N/mm2. Streak of Eclogite is white while its cleavage is perfect. Luster of Eclogite is subvitreous to dull and its fracture is . Eclogite is opaque in nature. Know all about Eclogite, What is Eclogite, its composition, features, facts and reserves in next sections.

Know about Composition of Eclogite

What is Eclogite composed of? Get to know about composition of Eclogite here. Eclogite definition gives information about the Formation of Eclogite and its composition.The composition of Eclogite can be further divided into mineral and compound content. The mineral content of Eclogite rock includes Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite and The compound content of Eclogite rock includes Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium. Almost all rocks undergo transformation process. Know all about Eclogite rock in next section.

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