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Gossan and Gossan


Gossan and Gossan


Definition

Definition
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.   
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.   

History
  
  

Origin
Indonesia   
Indonesia   

Discoverer
Cornish Gossen   
Cornish Gossen   

Etymology
From Cornish gossen from gos, blood from Old Cornish guit   
From Cornish gossen from gos, blood from Old Cornish guit   

Class
Metamorphic Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Rough, Sandy   
Rough, Sandy   

Color
Brown, Brown- Black, Gold, Green, Rust   
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
No   
No   

Acid Resistant
No   
No   

Appearance
Dull and Banded   
Dull and Banded   

Uses

Architecture
  
  

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

Exterior Uses
As Building Stone, As Facing Stone, Paving 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
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate   
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts   
Artifacts   

Other Uses
  
  

Commercial Uses
Cemetery Markers, Commemorative Tablets, Gemstone   
Cemetery Markers, Commemorative Tablets, Gemstone   

Types

Types
Translocated gossan and Leakage gossan   
Translocated gossan and Leakage gossan   

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

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
Absent   
Absent   

Formation

Formation
Earth movements can cause rocks to be either deeply buried or squeezed and hence the rocks are heated and put under great pressure.   
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
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon   
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon   

Compound Content
Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur   
Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur   

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

Weathering
No   
No   

Types of Weathering
Not Applicable   
Not Applicable   

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
4-5   
4-5   

Grain Size
Fine to Medium Grained   
Fine to Medium Grained   

Fracture
Conchoidal   
Conchoidal   

Streak
White to Grey   
White to Grey   

Porosity
Highly Porous   
Highly Porous   

Luster
Metallic   
Metallic   

Cleavage
Not Available   
Not Available   

Toughness
Not Available   
Not Available   

Specific Gravity
2.0   
2.0   

Transparency
Opaque   
Opaque   

Density
Not Available   
Not Available   

Thermal Properties
  
  

Specific Heat Capacity
0.24 kJ/Kg K   
24
0.24 kJ/Kg K   
24

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

Reserves

Deposits in Eastern Continents
  
  

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

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

Europe
Albania, France, Germany, Great Britain, United Kingdom   
Albania, France, Germany, Great Britain, United Kingdom   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
Canada, USA   

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

Deposits in Oceania Continent
  
  

Australia
New South Wales, South Australia, Western Australia   
New South Wales, South Australia, Western Australia   

Summary >>
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All about Gossan and Gossan Properties

Know all about Gossan and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Gossan and Gossan belong to Metamorphic Rocks.Texture of Gossan is Rough, Sandy whereas that of Gossan is Rough, Sandy. Gossan appears Dull and Banded and Gossan appears Dull and Banded. The luster of Gossan and Gossan is metallic. Gossan and Gossan are available in brown, brown- black, gold, green, rust colors. The commercial uses of Gossan and Gossan are cemetery markers, commemorative tablets, gemstone.

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