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Norite vs Gossan


Gossan vs Norite


Definition

Definition
Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine  
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.  

History
  
  

Origin
Norway  
Indonesia  

Discoverer
Unknown  
Cornish Gossen  

Etymology
From the Norwegian name for Norway, Norge  
From Cornish gossen from gos, blood from Old Cornish guit  

Class
Igneous Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
Plutonic  
-  

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

Texture

Texture
Phaneritic  
Rough, Sandy  

Color
Dark Grey to Black  
Brown, Brown- Black, Gold, Green, Rust  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
Yes  

Wind Resistant
Yes  
No  

Acid Resistant
Yes  
No  

Appearance
Veined and Shiny  
Dull and Banded  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Entryways, Interior Decoration  
Countertops, Decorative Aggregates, Interior Decoration  

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate  
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones  
Cemetery Markers, Commemorative Tablets, Gemstone  

Types

Types
Ultramafic intrusive rock  
Translocated gossan and Leakage gossan  

Features
Smooth to touch  
Clasts are smooth to touch, Easily splits into thin plates  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Norite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.  
Earth movements can cause rocks to be either deeply buried or squeezed and hence the rocks are heated and put under great pressure.   

Composition
  
  

Mineral Content
Augite, Olivine, Plagioclase, Pyroxene  
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon  

Compound Content
Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide  
Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur  

Transformation
  
  

Metamorphism
Yes  
No  

Types of Metamorphism
Cataclastic Metamorphism, Impact Metamorphism  
-  

Weathering
Yes  
No  

Types of Weathering
Biological Weathering  
-  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion  
Chemical Erosion, Sea Erosion, Wind Erosion  

Properties

Physical Properties
  
  

Hardness
7  
4-5  

Grain Size
Coarse Grained  
Fine to Medium Grained  

Fracture
Conchoidal  
Conchoidal  

Streak
Black  
White to Grey  

Porosity
Highly Porous  
Highly Porous  

Luster
-  
Metallic  

Compressive Strength
225.00 N/mm2  
8
-  

Cleavage
-  
-  

Toughness
1.6  
-  

Specific Gravity
2.86-2.87  
2.0  

Transparency
Opaque  
Opaque  

Density
2.7-3.3 g/cm3  
-9999 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.52 kJ/Kg K  
28
0.24 kJ/Kg K  
31

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Russia  
China, India, Indonesia, Russia, Singapore, South Korea  

Africa
South Africa  
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa  

Europe
Germany, Greece, Italy, Scotland, Turkey  
Albania, France, Germany, Great Britain, United Kingdom  

Others
Greenland  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
Canada, USA  

South America
Brazil, Colombia, Venezuela  
Brazil, Colombia, Ecuador  

Deposits in Oceania Continent
  
  

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

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Norite vs Gossan 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 Norite and Gossan Reserves. Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.. 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 Norite vs Gossan information and Norite vs Gossan characteristics in the upcoming sections.

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Norite vs Gossan 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. Norite vs Gossan characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Norite and Properties of Gossan. Learn more about Norite vs Gossan in the next section. The interior uses of Norite include Decorative aggregates, Entryways and Interior decoration whereas the interior uses of Gossan include Countertops, Decorative aggregates and Interior decoration. Due to some exceptional properties of Norite and Gossan, they have various applications in construction industry. The uses of Norite in construction industry include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate and that of Gossan include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate.

More about Norite and Gossan

Here you can know more about Norite and Gossan. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Norite and Gossan consists of mineral content and compound content. The mineral content of Norite includes Augite, Olivine, Plagioclase, Pyroxene and mineral content of Gossan includes Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Norite vs Gossan, the texture, color and appearance plays an important role in determining the type of rock. Norite is available in dark grey to black colors whereas, Gossan is available in brown, brown- black, gold, green, rust colors. Appearance of Norite is Veined and Shiny and that of Gossan is Dull and Banded. Properties of rock is another aspect for Norite vs Gossan. The hardness of Norite is 7 and that of Gossan is 4-5. The types of Norite are Ultramafic intrusive rock whereas types of Gossan are Translocated gossan and Leakage gossan. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Norite is black while that of Gossan is white to grey. The specific heat capacity of Norite is 0.52 kJ/Kg K and that of Gossan is 0.24 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Norite is impact resistant, pressure resistant, wear resistant whereas Gossan is heat resistant, impact resistant, pressure resistant.

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