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Oolite and Limestone


Limestone and Oolite


Definition

Definition
Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite  
Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate  

History
  
  

Origin
-  
New Zealand  

Discoverer
William Smith  
Belsazar Hacquet  

Etymology
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime  
From lime and stone in late 14th Century  

Class
Sedimentary Rocks  
Sedimentary Rocks  

Sub-Class
Durable Rock, Medium Hardness Rock  
Durable Rock, Medium Hardness Rock  

Family
  
  

Group
Volcanic  
-  

Other Categories
Fine Grained Rock, Opaque Rock  
Fine Grained Rock, Opaque Rock  

Texture

Texture
Clastic or Non-Clastic  
Clastic or Non-Clastic  

Color
Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow  
Beige, Black, Blue, Brown, Cream, Gold, Green, Grey, Light Green, Light Grey, Linen, Pink, Red, Rust, Silver, White, Yellow  

Maintenance
Less  
More  

Durability
Durable  
Durable  

Water Resistant
No  
No  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Rounded and Rough  
Rough and Banded  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Flooring, Interior Decoration  
Decorative Aggregates, Interior Decoration  

Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone  
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings  

Other Architectural Uses
-  
Curbing  

Industry
  
  

Construction Industry
Cement Manufacture, Cobblestones, Landscaping  
Cement Manufacture, Cobblestones, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar, Roadstone, Source of calcium  

Medical Industry
-  
In Chemical and Pharmaceutical Industry, Medicines and Cosmetics  

Antiquity Uses
Artifacts  
Artifacts, Monuments, Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Creating Artwork, Jewelry, Used in aquariums  
Animal feed filler, As a Feed Additive for Livestock, Paper Industry, Raw material for manufacture of quicklime, slaked lime, Soil Conditioner, Used in aquariums, Whiting material in toothpaste, paint and paper  

Types

Types
Pisolitic Oolite and Oncolitic Oolite  
Chalk, Coquina, Fossiliferous Limestone, Lithographic Limestone, Oolitic Limestone, Travertine, Tufa  

Features
Available in lots of colors, Generally rough to touch, Very fine grained rock  
Host Rock for Lead, Stalactites and stalagmites are formed from this rock, Zinc and Copper Deposits  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
Acropolis of Athens in Greece, Agia Sophia in Istanbul, Turkey, Al Aqsa Mosque in Jerusalem, Angkor Wat in Cambodia, Big Ben in London, Charminar in Hyderabad, India, Chhatrapati Shivaji Terminus in Maharashtra, India, Chichen Itza in Mexico, Empire State Building in New York, Khajuraho Temples, India, Kremlin in Moscow, Louvre in Paris, France, Neuschwanstein in Bavaria, Potala Palace in Lahasa, Tibet, Wailing Wall in Jerusalem  

Sculpture
-  
-  

Famous Sculptures
-  
Ajanta Caves in Maharashtra, India, Elephanta Caves in Maharashtra, India  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Present  
Present  

Formation

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.  
Limestone is a sedimentary rock which is mainly made up of calcium carbonate.  

Composition
  
  

Mineral Content
Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt  
Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt  

Compound Content
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO  
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, MgO  

Transformation
  
  

Metamorphism
No  
No  

Types of Metamorphism
-  
-  

Weathering
Yes  
Yes  

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering  
Biological Weathering, Chemical Weathering, Mechanical Weathering  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion  
Chemical Erosion, Coastal Erosion  

Properties

Physical Properties
  
  

Hardness
3-4  
3-4  

Grain Size
Fine Grained  
Fine Grained  

Fracture
Conchoidal  
Splintery  

Streak
White  
White  

Porosity
Less Porous  
Less Porous  

Luster
Pearly to Shiny  
Dull to Pearly  

Compressive Strength
40.00 N/mm2  
40
115.00 N/mm2  
27

Cleavage
-  
-  

Toughness
1  
1  

Specific Gravity
-9999  
2.3-2.7  

Transparency
Opaque  
Opaque  

Density
-9999 g/cm3  
2.3-2.7 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.65 kJ/Kg K  
25
0.91 kJ/Kg K  
11

Resistance
Heat Resistant, Wear Resistant  
Pressure Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam  
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam  

Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe  
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe  

Europe
United Kingdom  
United Kingdom  

Others
-  
-  

Deposits in Western Continents
  
  

North America
USA  
USA  

South America
Colombia  
Colombia  

Deposits in Oceania Continent
  
  

Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula  
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula  

Summary >>
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All about Oolite and Limestone Properties

Know all about Oolite and Limestone properties here. All properties of rocks are important as they define the type of rock and its application. Oolite and Limestone belong to Sedimentary Rocks.Texture of Oolite is Clastic or Non-Clastic whereas that of Limestone is Clastic or Non-Clastic. Oolite appears Rounded and Rough and Limestone appears Rough and Banded. The luster of Oolite is pearly to shiny while that of Limestone is dull to pearly. Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors whereas Limestone is available in beige, black, blue, brown, cream, gold, green, grey, light green, light grey, linen, pink, red, rust, silver, white, yellow colors. The commercial uses of Oolite are creating artwork, jewelry, used in aquariums and that of Limestone are animal feed filler, as a feed additive for livestock, paper industry, raw material for manufacture of quicklime, slaked lime, soil conditioner, used in aquariums, whiting material in toothpaste, paint and paper.

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