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Chert vs Borolanite


Borolanite vs Chert


Definition

Definition
Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture  
Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix  

History
  
  

Origin
-  
Scotland  

Discoverer
Unknown  
Unknown  

Etymology
From flint-like quartz, 1670s, of unknown origin- a local term, which has been taken into geological use  
From Alkalic Igneous complex near Loch Borralan in northwest Scotland  

Class
Sedimentary Rocks  
Igneous Rocks  

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

Family
  
  

Group
-  
Plutonic  

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

Texture

Texture
Banded, Rough  
Granular  

Color
Black, Brown, Green, Grey, Red, White  
Brown, Buff, Cream, Green, Grey, Pink, White  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
Yes  
No  

Wind Resistant
No  
Yes  

Acid Resistant
Yes  
Yes  

Appearance
Glassy or Pearly  
Banded and Foilated  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
Arrowheads, Construction Aggregate, Cutting Tool, Spear Points  
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments  
Artifacts  

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone, In fire-starting tools, Jewelry, To ignite fire, Used in flintlock firearms  
Cemetery Markers  

Types

Types
Flint, Jasper, Radiolarite, Common Chert, Chalcedony, Agate, Onyx, Opal, Magadi-type Chert, Porcelanite, Siliceous Sinter  
-  

Features
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate  
Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Present  
Absent  

Formation

Formation
Chert forms when microcrystals of silicon dioxide grow within soft sediments that become limestone or chalk. The chert formation can be either of chemical or biological origin.   
Borolanites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.  

Composition
  
  

Mineral Content
Quartz, Silicon  
Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite  

Compound Content
Silicon Dioxide  
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide  

Transformation
  
  

Metamorphism
No  
Yes  

Types of Metamorphism
-  
Regional Metamorphism  

Weathering
No  
Yes  

Types of Weathering
-  
Chemical Weathering, Mechanical Weathering  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion  
Wind Erosion  

Properties

Physical Properties
  
  

Hardness
6.5-7  
5.5-6  

Grain Size
Very fine-grained  
Fine Grained  

Fracture
Uneven, Splintery or Conchoidal  
Conchoidal to Uneven  

Streak
White  
White  

Porosity
Highly Porous  
Less Porous  

Luster
Waxy and Dull  
Greasy to Dull  

Compressive Strength
450.00 N/mm2  
1
150.00 N/mm2  
22

Cleavage
-  
-  

Toughness
1.5  
-  

Specific Gravity
2.5-2.8  
2.6  

Transparency
Translucent to Opaque  
Translucent to Opaque  

Density
2.7 g/cm3  
2.6 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.74 kJ/Kg K  
21
0.84 kJ/Kg K  
15

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Iran, Japan, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam  
Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam  

Africa
Kenya, Morocco, South Africa, Tanzania  
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa  

Europe
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom  
Andorra, Finland, France, Great Britain, Italy, Norway, Portugal, Spain, Sweden  

Others
Greenland, Mid-Atlantic Ridge  
Greenland  

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA  
Canada, USA  

South America
Bolivia, Brazil  
Brazil, Chile, Colombia, Uruguay, Venezuela  

Deposits in Oceania Continent
  
  

Australia
New South Wales, Queensland, South Australia, Western Australia  
New Zealand, Queensland, South Australia, Tasmania, Western Australia  

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Chert vs Borolanite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Chert and Borolanite Reserves. Chert is a hard, dark, opaque sedimentary rock which is composed of silica with an amorphous fine-grained texture. Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Chert vs Borolanite information and Chert vs Borolanite characteristics in the upcoming sections.

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Chert vs Borolanite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Chert vs Borolanite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Chert and Properties of Borolanite. Learn more about Chert vs Borolanite in the next section. The interior uses of Chert include Decorative aggregates and Homes whereas the interior uses of Borolanite include Countertops, Decorative aggregates, Flooring, Homes and Interior decoration. Due to some exceptional properties of Chert and Borolanite, they have various applications in construction industry. The uses of Chert in construction industry include Arrowheads, Construction aggregate, Cutting tool, Spear points and that of Borolanite include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Landscaping, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics.

More about Chert and Borolanite

Here you can know more about Chert and Borolanite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Chert and Borolanite consists of mineral content and compound content. The mineral content of Chert includes Quartz, Silicon and mineral content of Borolanite includes Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite. You can also check out the list of all Sedimentary Rocks. When we have to compare Chert vs Borolanite, the texture, color and appearance plays an important role in determining the type of rock. Chert is available in black, brown, green, grey, red, white colors whereas, Borolanite is available in brown, buff, cream, green, grey, pink, white colors. Appearance of Chert is Glassy or Pearly and that of Borolanite is Banded and Foilated. Properties of rock is another aspect for Chert vs Borolanite. The hardness of Chert is 6.5-7 and that of Borolanite is 5.5-6. The types of Chert are Flint, Jasper, Radiolarite, Common Chert, Chalcedony, Agate, Onyx, Opal, Magadi-type Chert, Porcelanite, Siliceous Sinter whereas types of Borolanite are -. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Chert and Borolanite is white. The specific heat capacity of Chert is 0.74 kJ/Kg K and that of Borolanite is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Chert is heat resistant, impact resistant, pressure resistant, wear resistant whereas Borolanite is heat resistant, impact resistant, wear resistant.

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