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Oolite and Arkose


Arkose and Oolite


Definition

Definition
Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite   
Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar   

History
  
  

Origin
Unknown   
France   

Discoverer
Unknown   
Alexandre Brongniart   

Etymology
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime   
From Auvergne region of France used by a French geologist Alexandre Brongniart in 1826 who applied this term to some feldspathic sandstones   

Class
Sedimentary Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

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

Texture

Texture
Clastic or Non-Clastic   
Clastic   

Color
Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow   
Reddish Brown   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
No   
No   

Acid Resistant
No   
Yes   

Appearance
Rounded and Rough   
Rough and Dull   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Not Yet Used   
Whetstones   

Industry
  
  

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

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
Creating Artwork, Jewelry, Used in aquariums   
In aquifers, Soil Conditioner, Source of Magnesia (MgO), Tombstones   

Types

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   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Not Yet Used   
Used   

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.   
Arkose rock forms from the weathering of feldspar-rich igneous or metamorphic rock, most commonly granitic rocks, which are primarily composed of quartz and feldspar.   

Composition
  
  

Mineral Content
Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt   
Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz   

Compound Content
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO   
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide   

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

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   
Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
3-4   
6-7   

Grain Size
Fine Grained   
Coarse Grained   

Fracture
Conchoidal   
Conchoidal   

Streak
White   
White   

Porosity
Less Porous   
Highly Porous   

Luster
Pearly to Shiny   
Dull   

Cleavage
Non-Existent   
Not Available   

Toughness
1   
Not Available   

Specific Gravity
Not Available   
0   

Transparency
Opaque   
Opaque   

Density
Not Available   
Not Available   

Thermal Properties
  
  

Resistance
Heat Resistant, Wear Resistant   
Heat Resistant, Impact Resistant, Pressure Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam   
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan   

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

Europe
United Kingdom   
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom   

Others
Not Yet Found   
Greenland   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Colombia   
Brazil   

Deposits in Oceania Continent
  
  

Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula   
New South Wales, New Zealand   

Summary >>
<< Reserves

All about Oolite and Arkose Properties

Know all about Oolite and Arkose properties here. All properties of rocks are important as they define the type of rock and its application. Oolite and Arkose belong to Sedimentary Rocks.Texture of Oolite is Clastic or Non-Clastic whereas that of Arkose is Clastic. Oolite appears Rounded and Rough and Arkose appears Rough and Dull. The luster of Oolite is pearly to shiny while that of Arkose is dull. Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors whereas Arkose is available in reddish brown colors. The commercial uses of Oolite are creating artwork, jewelry, used in aquariums and that of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones.

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