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Gossan vs Shonkinite


Shonkinite vs Gossan


Definition

Definition
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.  
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents  

History
  
  

Origin
Indonesia  
USA  

Discoverer
Cornish Gossen  
Unknown  

Etymology
From Cornish gossen from gos, blood from Old Cornish guit  
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US  

Class
Metamorphic Rocks  
Igneous Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Rough, Sandy  
Earthy  

Color
Brown, Brown- Black, Gold, Green, Rust  
Brown, Buff, Cream, Green, Grey, Pink, White  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
No  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Dull and Banded  
Banded and Foilated  

Uses

Architecture
  
  

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

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

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, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories  

Medical Industry
-  
-  

Antiquity Uses
Artifacts  
Artifacts, Monuments, Sculpture  

Other Uses
  
  

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

Types

Types
Translocated gossan and Leakage gossan  
Igneous rock  

Features
Clasts are smooth to touch, Easily splits into thin plates  
Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

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.   
Shonkinites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.   

Composition
  
  

Mineral Content
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon  
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz  

Compound Content
Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur  
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
-  
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism  

Weathering
No  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
4-5  
5.5-6  

Grain Size
Fine to Medium Grained  
Medium to Fine Coarse Grained  

Fracture
Conchoidal  
-  

Streak
White to Grey  
White  

Porosity
Highly Porous  
Less Porous  

Luster
Metallic  
Subvitreous to Dull  

Compressive Strength
-  
150.00 N/mm2  
22

Cleavage
-  
Perfect  

Toughness
-  
-  

Specific Gravity
2.0  
2.6-2.7  

Transparency
Opaque  
Opaque  

Density
-9999 g/cm3  
2.6-2.8 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.24 kJ/Kg K  
31
0.92 kJ/Kg K  
10

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Indonesia, Russia, Singapore, South Korea  
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam  

Africa
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa  
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa  

Europe
Albania, France, Germany, Great Britain, United Kingdom  
Bulgaria, England, Germany, Norway, Romania, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
USA  

South America
Brazil, Colombia, Ecuador  
Brazil, Chile  

Deposits in Oceania Continent
  
  

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

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Gossan vs Shonkinite 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 Gossan and Shonkinite Reserves. Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.. Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents. 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 Gossan vs Shonkinite information and Gossan vs Shonkinite characteristics in the upcoming sections.

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Gossan vs Shonkinite 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. Gossan vs Shonkinite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Gossan and Properties of Shonkinite. Learn more about Gossan vs Shonkinite in the next section. The interior uses of Gossan include Countertops, Decorative aggregates and Interior decoration whereas the interior uses of Shonkinite include Decorative aggregates, Flooring, Homes and Interior decoration. Due to some exceptional properties of Gossan and Shonkinite, they have various applications in construction industry. The uses of Gossan in construction industry include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate and that of Shonkinite include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Landscaping, Making natural cement, Manufacture of magnesium and dolomite refractories.

More about Gossan and Shonkinite

Here you can know more about Gossan and Shonkinite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Gossan and Shonkinite consists of mineral content and compound content. The mineral content of Gossan includes Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon and mineral content of Shonkinite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz. You can also check out the list of all Metamorphic Rocks. When we have to compare Gossan vs Shonkinite, the texture, color and appearance plays an important role in determining the type of rock. Gossan is available in brown, brown- black, gold, green, rust colors whereas, Shonkinite is available in brown, buff, cream, green, grey, pink, white colors. Appearance of Gossan is Dull and Banded and that of Shonkinite is Banded and Foilated. Properties of rock is another aspect for Gossan vs Shonkinite. The hardness of Gossan is 4-5 and that of Shonkinite is 5.5-6. The types of Gossan are Translocated gossan and Leakage gossan whereas types of Shonkinite are Igneous rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Gossan is white to grey while that of Shonkinite is white. The specific heat capacity of Gossan is 0.24 kJ/Kg K and that of Shonkinite is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Gossan is heat resistant, impact resistant, pressure resistant whereas Shonkinite is heat resistant, impact resistant, wear resistant.

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