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
✔
✘
81% - Metamorphic Rocks Rocks
Scratch Resistant
✔
✘
65% - Metamorphic Rocks Rocks have it !
Stain Resistant
✔
✘
42% - Metamorphic Rocks Rocks have it !
Wind Resistant
✔
✘
19% - Metamorphic Rocks Rocks have it !
Acid Resistant
✔
✘
15% - Metamorphic Rocks Rocks
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
✔
✘
50% - Metamorphic Rocks Rocks
Types of Metamorphism
-
Weathering
✔
✘
65% - Metamorphic Rocks Rocks have it !
Types of Weathering
Mechanical Weathering
Erosion
✔
✘
77% - Metamorphic Rocks Rocks have it !
Types of Erosion
Chemical Erosion, Sea Erosion
Properties
Physical Properties
Hardness
3.5-4
1
7
👆🏻
Grain Size
Fine Grained
Fracture
-
Streak
White
Porosity
Less Porous
Luster
Subvitreous to Dull
Compressive Strength
200.00 N/mm2
Rank: 13 (Overall)
0.15
450
👆🏻
Cleavage
Perfect
Toughness
-
Specific Gravity
2.86-2.87
0
8.4
👆🏻
Transparency
Opaque
Density
3.2-3.6 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.75 kJ/Kg K
Rank: 20 (Overall)
0.14
3.2
👆🏻
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