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Blueschist vs Gossan


Gossan vs Blueschist


Definition

Definition
Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature   
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.   

History
  
  

Origin
USA   
Indonesia   

Discoverer
Edgar Bailey   
Cornish Gossen   

Etymology
From French schiste, Greek skhistos i.e. split   
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
Foliated   
Rough, Sandy   

Color
Blue, Bluish - Grey, Purple, Shades of Blue   
Brown, Brown- Black, Gold, Green, Rust   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Dull and Banded   
Dull and Banded   

Uses

Architecture
  
  

Interior Uses
Floor Tiles, Flooring, Homes, Hotels, Kitchens   
Countertops, Decorative Aggregates, Interior Decoration   

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

Other Architectural Uses
Not Yet Used   
Curbing   

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone   
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments, Sculpture   
Artifacts   

Other Uses
  
  

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

Types

Types
Not Available   
Translocated gossan and Leakage gossan   

Features
Has High structural resistance against erosion and climate, Very fine grained rock   
Clasts are smooth to touch, Easily splits into thin plates   

Archaeological Significance
  
  

Monuments
Used   
Not Yet Used   

Famous Monuments
Data Not Available   
Not Applicable   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Not Yet Used   

Fossils
Absent   
Absent   

Formation

Formation
Blueschist forms due to the metamorphism of basalt and other rocks with similar composition at high pressures and low temperatures and approximately corresponding to a depth of 15 to 30 kilometers and 200 to 500 °C.   
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
Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz   
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon   

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

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

Weathering
Yes   
No   

Types of Weathering
Mechanical Weathering   
Not Applicable   

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
3.5-4   
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
Dull   
Metallic   

Cleavage
Slaty   
Not Available   

Toughness
1.5   
Not Available   

Specific Gravity
3-3.2   
2.0   

Transparency
Opaque   
Opaque   

Density
2.8-2.9 g/cm3   
Not Available   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.24 kJ/Kg K   
24

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

Reserves

Deposits in Eastern Continents
  
  

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

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

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

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Not Yet Found   
Brazil, Colombia, Ecuador   

Deposits in Oceania Continent
  
  

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

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Blueschist 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 Blueschist and Gossan Reserves. Blueschist is a metamorphic rock which is generally blue in color and is formed under conditions of high pressure and low temperature. 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 Blueschist vs Gossan information and Blueschist vs Gossan characteristics in the upcoming sections.

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Blueschist 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. Blueschist vs Gossan characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Blueschist and Properties of Gossan. Learn more about Blueschist vs Gossan in the next section. The interior uses of Blueschist include Floor tiles, Flooring, Homes, Hotels and Kitchens whereas the interior uses of Gossan include Countertops, Decorative aggregates and Interior decoration. Due to some exceptional properties of Blueschist and Gossan, they have various applications in construction industry. The uses of Blueschist in construction industry include As dimension stone, Cobblestones, Rail track ballast, Roadstone and that of Gossan include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate.

More about Blueschist and Gossan

Here you can know more about Blueschist and Gossan. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Blueschist and Gossan consists of mineral content and compound content. The mineral content of Blueschist includes Albite, Chlorite, Epidote, Garnet, Glaucophane, Lawsonite, Muscovite or Illite, Quartz 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 Blueschist vs Gossan, the texture, color and appearance plays an important role in determining the type of rock. Blueschist is available in blue, bluish - grey, purple, shades of blue colors whereas, Gossan is available in brown, brown- black, gold, green, rust colors. Appearance of Blueschist is Dull and Banded and that of Gossan is Dull and Banded. Properties of rock is another aspect for Blueschist vs Gossan. The hardness of Blueschist is 3.5-4 and that of Gossan is 4-5. The types of Blueschist are Not Available 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 Blueschist and Gossan is white to grey. The specific heat capacity of Blueschist is Not Available 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.Blueschist is impact resistant, pressure resistant whereas Gossan is heat resistant, impact resistant, pressure resistant.

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