Definition
Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite
  
Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature
  
History
  
  
Discoverer
Unknown
  
René Just Haüy
  
Etymology
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime
  
From French, Greek eklogē selection with reference to the selective content of the rock + -ite1
  
Class
Sedimentary Rocks
  
Metamorphic Rocks
  
Sub-Class
Durable Rock, Medium Hardness Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Volcanic
  
Not Applicable
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Clastic or Non-Clastic
  
Earthy
  
Color
Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow
  
Black, Brown, Colourless, Green, Grey, Pink, White
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
No
  
No
  
Scratch Resistant
Yes
  
Yes
  
Stain Resistant
Yes
  
Yes
  
Wind Resistant
No
  
Yes
  
Acid Resistant
No
  
No
  
Appearance
Rounded and Rough
  
Dull, Banded and Foilated
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Flooring, Interior Decoration
  
Decorative Aggregates, Interior Decoration
  
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
  
Paving Stone, Garden Decoration
  
Other Architectural Uses
Not Yet Used
  
Curbing
  
Industry
  
  
Construction Industry
Cement Manufacture, Cobblestones, Landscaping
  
Not Yet Used
  
Medical Industry
Not Yet Used
  
In Chemical and Pharmaceutical Industry, Medicines and Cosmetics
  
Antiquity Uses
Artifacts
  
Artifacts
  
Other Uses
  
  
Commercial Uses
Creating Artwork, Jewelry, Used in aquariums
  
Creating Artwork, Gemstone
  
Types
Not Available
  
Not Available
  
Features
Available in lots of colors, Generally rough to touch, Very fine grained rock
  
Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Not Yet Used
  
Famous Monuments
Not Applicable
  
Not Applicable
  
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
Present
  
Absent
  
Formation
Oolites form when layers of calcite are deposited around a sand grain or fossil piece and are rolled around in calm water, which makes them round.
  
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
Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt
  
Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite
  
Compound Content
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO
  
Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium
  
Transformation
  
  
Metamorphism
No
  
No
  
Types of Metamorphism
Not Applicable
  
Not Applicable
  
Weathering
Yes
  
Yes
  
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Mechanical Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Coastal Erosion
  
Chemical Erosion, Sea Erosion
  
Physical Properties
  
  
Hardness
3-4
  
3.5-4
  
Grain Size
Fine Grained
  
Fine Grained
  
Fracture
Conchoidal
  
Not Available
  
Streak
White
  
White
  
Porosity
Less Porous
  
Less Porous
  
Luster
Pearly to Shiny
  
Subvitreous to Dull
  
Cleavage
Non-Existent
  
Perfect
  
Toughness
1
  
Not Available
  
Specific Gravity
Not Available
  
2.86-2.87
  
Transparency
Opaque
  
Opaque
  
Density
Not Available
  
3.2-3.6 g/cm3
  
Thermal Properties
  
  
Resistance
Heat Resistant, Wear Resistant
  
Heat Resistant
  
Deposits in Eastern Continents
  
  
Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
  
India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey
  
Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
  
Ethiopia, Morocco, South Africa
  
Europe
United Kingdom
  
France, Germany, Italy, Norway, Scotland
  
Others
Not Yet Found
  
Greenland
  
Deposits in Western Continents
  
  
North America
USA
  
Canada, Costa Rica, Panama, USA
  
South America
Colombia
  
Argentina, Brazil, Colombia, Ecuador
  
Deposits in Oceania Continent
  
  
Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
  
Central Australia, New Zealand, Queensland
  
All about Oolite and Eclogite Properties
Know all about Oolite and Eclogite properties here. All properties of rocks are important as they define the type of rock and its application. Oolite belongs to Sedimentary Rocks while Eclogite belongs to Metamorphic Rocks.Texture of Oolite is Clastic or Non-Clastic whereas that of Eclogite is Earthy. Oolite appears Rounded and Rough and Eclogite appears Dull, Banded and Foilated. The luster of Oolite is pearly to shiny while that of Eclogite is subvitreous to dull. Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors whereas Eclogite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Oolite are creating artwork, jewelry, used in aquariums and that of Eclogite are creating artwork, gemstone.