Eclogite and Jaspillite
Definition
Definition
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
History
Origin
Unknown
Western Australia, Minnesota
Discoverer
René Just Haüy
Unknown
Etymology
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
Not Applicable
Not Applicable
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
Texture
Texture
Earthy
Banded, Trellis
Color
Black, Brown, Colourless, Green, Grey, Pink, White
Red, Reddish Brown
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
No
No
Scratch Resistant
Yes
No
Stain Resistant
Yes
No
Wind Resistant
Yes
No
Acid Resistant
No
No
Appearance
Dull, Banded and Foilated
Banded and Glassy
Uses
Architecture
Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Interior Decoration
Exterior Uses
Paving Stone, Garden Decoration
As Facing Stone, Garden Decoration, Paving Stone
Other Architectural Uses
Curbing
Curbing
Industry
Construction Industry
Not Yet Used
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories
Medical Industry
In Chemical and Pharmaceutical Industry, Medicines and Cosmetics
Not Yet Used
Antiquity Uses
Artifacts
Artifacts, Jewellery, Monuments
Other Uses
Commercial Uses
Creating Artwork, Gemstone
Creating Artwork, Jewelry
Types
Types
Not Available
Algoma-type , Lake Superior-type and Superior-type
Features
Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock
Is one of the oldest rock
Archaeological Significance
Monuments
Not Yet Used
Used
Famous Monuments
Not Applicable
Data Not Available
Sculpture
Not Yet Used
Not Yet Used
Famous Sculptures
Not Applicable
Not Applicable
Pictographs
Used
Used
Petroglyphs
Used
Used
Figurines
Not Yet Used
Not Yet Used
Fossils
Absent
Present
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.
Jaspillite is a type of sedimentary rock which is formed by the compaction and sedimentation of pieces of broken or weathered rocks and minerals.
Composition
Mineral Content
Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite
Coesite, Quartz, Sand
Compound Content
Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium
Fe, Iron(III) Oxide, Silicon Dioxide
Transformation
Metamorphism
No
No
Types of Metamorphism
Not Applicable
Not Applicable
Weathering
Yes
Yes
Types of Weathering
Mechanical Weathering
Biological Weathering, Chemical Weathering
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Sea Erosion
Chemical Erosion, Coastal Erosion
Properties
Physical Properties
Hardness
3.5-4
3
Grain Size
Fine Grained
Large and Coarse Grained
Fracture
Not Available
Conchoidal
Streak
White
White
Porosity
Less Porous
Very Less Porous
Luster
Subvitreous to Dull
Earthy
Compressive Strength
Not Available
230.00 N/mm2
6
Cleavage
Perfect
Imperfect
Toughness
Not Available
Not Available
Specific Gravity
2.86-2.87
5.0-5.3
Transparency
Opaque
Translucent to Opaque
Density
3.2-3.6 g/cm3
0-5.7 g/cm3
Thermal Properties
Specific Heat Capacity
Not Available
3.20 kJ/Kg K
1
Resistance
Heat Resistant
Heat Resistant, Impact Resistant, Wear Resistant
Reserves
Deposits in Eastern Continents
Asia
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
Russia
Africa
Ethiopia, Morocco, South Africa
Not Yet Found
Europe
France, Germany, Italy, Norway, Scotland
Ukraine
Others
Greenland
Not Yet Found
Deposits in Western Continents
North America
Canada, Costa Rica, Panama, USA
Canada, USA
South America
Argentina, Brazil, Colombia, Ecuador
Brazil
Deposits in Oceania Continent
Australia
Central Australia, New Zealand, Queensland
Western Australia
All about Eclogite and Jaspillite Properties
Know all about Eclogite and Jaspillite properties here. All properties of rocks are important as they define the type of rock and its application. Eclogite belongs to Metamorphic Rocks while Jaspillite belongs to Sedimentary Rocks.Texture of Eclogite is Earthy whereas that of Jaspillite is Banded, Trellis. Eclogite appears Dull, Banded and Foilated and Jaspillite appears Banded and Glassy. The luster of Eclogite is subvitreous to dull while that of Jaspillite is earthy. Eclogite is available in black, brown, colourless, green, grey, pink, white colors whereas Jaspillite is available in red, reddish brown colors. The commercial uses of Eclogite are creating artwork, gemstone and that of Jaspillite are creating artwork, jewelry.
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