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Charnockite and Granophyre


Granophyre and Charnockite


Definition

Definition
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar   
Granophyre is a type of granitic rock which consists of intergrown feldspar and quartz crystals in a medium to fine grained groundmass   

History
  
  

Origin
Tamil Nadu, India   
Unknown   

Discoverer
T. H. Holland   
Unknown   

Etymology
From Job Charnock, an administtrator of East India Company   
From German Granophyr, from Granit granite + Porphyr   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture

Texture
Granular   
Granophyric   

Color
Black, Grey, Orange, Pink, White   
Black, Grey, Orange, Pink, White   

Maintenance
Less   
More   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
No   
Yes   

Acid Resistant
Yes   
No   

Appearance
Veined or Pebbled   
Veined or Pebbled   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Not Yet Used   

Industry
  
  

Construction Industry
As Dimension Stone   
As Dimension Stone   

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

Commercial Uses
Curling, Gemstone, Laboratory bench tops, Tombstones   
Curling, Gemstone, Laboratory bench tops, Tombstones   

Types

Types
Enderbite   
Not Available   

Features
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock   
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Not Used   
Not Used   

Petroglyphs
Not Used   
Not Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.   
Granophyre is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.   

Composition
  
  

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

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

Transformation
  
  

Metamorphism
Yes   
Yes   

Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism   
Burial Metamorphism, Impact Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering   
Biological Weathering   

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
6-7   
6-7   

Grain Size
Coarse Grained   
Medium to Fine Coarse Grained   

Fracture
Not Available   
Not Available   

Streak
White   
White   

Porosity
Very Less Porous   
Less Porous   

Luster
Not Available   
Dull to Grainy with Sporadic parts Pearly and Vitreous   

Compressive Strength
Not Available   
175.00 N/mm2   
13

Cleavage
Not Available   
Not Available   

Toughness
Not Available   
Not Available   

Specific Gravity
Not Available   
2.6-2.7   

Transparency
Opaque   
Opaque   

Density
2.6 g/cm3   
2.6-2.8 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.79 kJ/Kg K   
16

Resistance
Heat Resistant, Wear Resistant   
Heat Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
India   
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam   

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

Europe
Albania, Romania, Scotland, United Kingdom   
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Brazil, Colombia, Venezuela   
Not Yet Found   

Deposits in Oceania Continent
  
  

Australia
Central Australia, Western Australia   
Not Yet Found   

Summary >>
<< Reserves

All about Charnockite and Granophyre Properties

Know all about Charnockite and Granophyre properties here. All properties of rocks are important as they define the type of rock and its application. Charnockite and Granophyre belong to Igneous Rocks.Texture of Charnockite is Granular whereas that of Granophyre is Granophyric. Charnockite appears Veined or Pebbled and Granophyre appears Veined or Pebbled. The luster of Charnockite is not available while that of Granophyre is dull to grainy with sporadic parts pearly and vitreous. Charnockite and Granophyre are available in black, grey, orange, pink, white colors. The commercial uses of Charnockite and Granophyre are curling, gemstone, laboratory bench tops, tombstones.

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