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Phyllite vs Gossan


Gossan vs Phyllite


Definition

Definition
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks  
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.  

History
  
  

Origin
-  
Indonesia  

Discoverer
Unknown  
Cornish Gossen  

Etymology
From Greek phullon leaf + -ite1  
From Cornish gossen from gos, blood from Old Cornish guit  

Class
Metamorphic Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
-  
-  

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

Texture

Texture
Phyllitic Sheen, Slaty  
Rough, Sandy  

Color
Black to Grey, Light Greenish Grey  
Brown, Brown- Black, Gold, Green, Rust  

Maintenance
More  
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
Crinkled or Wavy  
Dull and Banded  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration  
Countertops, Decorative Aggregates, Interior Decoration  

Exterior Uses
As Building Stone, As Facing 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, Raw material for the manufacture of mortar, Roadstone  
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Sculpture  
Artifacts  

Other Uses
  
  

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

Types

Types
Phyllite  
Translocated gossan and Leakage gossan  

Features
Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny  
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
Phyllite is a metamorphic rock which is formed by regional metamorphism of argillaceous sediments since their cleavage arose due to deviatoric stress.  
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, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon  
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon  

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

Transformation
  
  

Metamorphism
No  
No  

Types of Metamorphism
-  
-  

Weathering
Yes  
No  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
1-2  
4-5  

Grain Size
Medium to Fine Coarse Grained  
Fine to Medium Grained  

Fracture
Conchoidal  
Conchoidal  

Streak
White  
White to Grey  

Porosity
Highly Porous  
Highly Porous  

Luster
Phyllitic  
Metallic  

Compressive Strength
50.00 N/mm2  
39
-  

Cleavage
Crenulation and Pervasive  
-  

Toughness
1.2  
-  

Specific Gravity
2.72-2.73  
2.0  

Transparency
Opaque  
Opaque  

Density
2.18-3.3 g/cm3  
-9999 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K  
17
0.24 kJ/Kg K  
31

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam  
China, India, Indonesia, Russia, Singapore, South Korea  

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

Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland  
Albania, France, Germany, Great Britain, United Kingdom  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, Costa Rica, Cuba, Mexico, Panama, USA  
Canada, USA  

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

Deposits in Oceania Continent
  
  

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

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Phyllite 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 Phyllite and Gossan Reserves. Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks. 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 Phyllite vs Gossan information and Phyllite vs Gossan characteristics in the upcoming sections.

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

More about Phyllite and Gossan

Here you can know more about Phyllite and Gossan. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Phyllite and Gossan consists of mineral content and compound content. The mineral content of Phyllite includes Albite, Alusite, Amphibole, Apatite, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc, Zircon 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 Metamorphic Rocks. When we have to compare Phyllite vs Gossan, the texture, color and appearance plays an important role in determining the type of rock. Phyllite is available in black to grey, light greenish grey colors whereas, Gossan is available in brown, brown- black, gold, green, rust colors. Appearance of Phyllite is Crinkled or Wavy and that of Gossan is Dull and Banded. Properties of rock is another aspect for Phyllite vs Gossan. The hardness of Phyllite is 1-2 and that of Gossan is 4-5. The types of Phyllite are Phyllite 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 Phyllite is white while that of Gossan is white to grey. The specific heat capacity of Phyllite is 0.79 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.Phyllite is heat resistant, pressure resistant, water resistant whereas Gossan is heat resistant, impact resistant, pressure resistant.

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