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Phyllite and Charnockite


Charnockite and Phyllite


Definition

Definition
Phyllite is a fine-grained metamorphic rock with a well-developed laminar structure, and is intermediate between slate and schist rocks  
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar  

History
  
  

Origin
-  
Tamil Nadu, India  

Discoverer
Unknown  
T. H. Holland  

Etymology
From Greek phullon leaf + -ite1  
From Job Charnock, an administtrator of East India Company  

Class
Metamorphic Rocks  
Igneous Rocks  

Sub-Class
Durable Rock, Soft Rock  
Durable Rock, Hard Rock  

Family
  
  

Group
-  
Plutonic  

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

Texture

Texture
Phyllitic Sheen, Slaty  
Granular  

Color
Black to Grey, Light Greenish Grey  
Black, Grey, Orange, Pink, White  

Maintenance
More  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
No  

Scratch Resistant
No  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
Yes  

Appearance
Crinkled or Wavy  
Veined or Pebbled  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration  
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads  

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

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  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Sculpture  
Artifacts, Monuments, Sculpture, Small Figurines  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork, Writing Slates  
Curling, Gemstone, Laboratory bench tops, Tombstones  

Types

Types
Phyllite  
Enderbite  

Features
Easily splits into thin plates, Is one of the oldest rock, Surfaces are often shiny  
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock  

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.  
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.  

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  
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz  

Compound Content
CaO, Carbon Dioxide, MgO  
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, Contact Metamorphism, Regional Metamorphism  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
1-2  
6-7  

Grain Size
Medium to Fine Coarse Grained  
Coarse Grained  

Fracture
Conchoidal  
-  

Streak
White  
White  

Porosity
Highly Porous  
Very Less Porous  

Luster
Phyllitic  
-  

Compressive Strength
50.00 N/mm2  
39
190.00 N/mm2  
15

Cleavage
Crenulation and Pervasive  
-  

Toughness
1.2  
-  

Specific Gravity
2.72-2.73  
-9999  

Transparency
Opaque  
Opaque  

Density
2.18-3.3 g/cm3  
2.6 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K  
17
0.84 kJ/Kg K  
15

Resistance
Heat Resistant, Pressure Resistant, Water Resistant  
Heat Resistant, Wear Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam  
India  

Africa
Egypt, Ethiopia, Morocco, Nigeria, South Africa  
East Africa, Ethiopia, Madagascar, Morocco, Mozambique  

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

Others
-  
-  

Deposits in Western Continents
  
  

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

South America
Brazil, Colombia, Guyana  
Brazil, Colombia, Venezuela  

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Phyllite and Charnockite Properties

Know all about Phyllite and Charnockite properties here. All properties of rocks are important as they define the type of rock and its application. Phyllite belongs to Metamorphic Rocks while Charnockite belongs to Igneous Rocks.Texture of Phyllite is Phyllitic Sheen, Slaty whereas that of Charnockite is Granular. Phyllite appears Crinkled or Wavy and Charnockite appears Veined or Pebbled. The luster of Phyllite is phyllitic while that of Charnockite is . Phyllite is available in black to grey, light greenish grey colors whereas Charnockite is available in black, grey, orange, pink, white colors. The commercial uses of Phyllite are cemetery markers, commemorative tablets, creating artwork, writing slates and that of Charnockite are curling, gemstone, laboratory bench tops, tombstones.

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