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Charnockite and Basaltic Trachyandesite


Basaltic Trachyandesite and Charnockite


Definition

Definition
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar   
Basaltic Trachyandesite is an extrusive igneous rock which is a type of Basalt rock and is formed by the rapid cooling of basaltic lava exposed at or very near the Earth's surface   

History
  
  

Origin
Tamil Nadu, India   
Unknown   

Discoverer
T. H. Holland   
Unknown   

Etymology
From Job Charnock, an administtrator of East India Company   
From its mineral and compound content and its relation with Basalt and Andesite rock   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture

Texture
Granular   
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular   

Color
Black, Grey, Orange, Pink, White   
Black, Brown, Light to Dark Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
No   
No   

Acid Resistant
Yes   
Yes   

Appearance
Veined or Pebbled   
Dull and Soft   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing, Whetstones   

Industry
  
  

Construction Industry
As Dimension Stone   
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone   

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

Commercial Uses
Curling, Gemstone, Laboratory bench tops, Tombstones   
An Oil and Gas Reservoir, Commemorative Tablets, Creating Artwork   

Types

Types
Enderbite   
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite   

Features
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock   
Has High structural resistance against erosion and climate, Very fine grained rock   

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
Not Used   
Used   

Petroglyphs
Not Used   
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.   
Basaltic Trachandesite is a fine-grained, hard rock that forms when bits of lava shoot out of volcanoes.   

Composition
  
  

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

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   
Contact Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering   
Biological Weathering   

Erosion
Yes   
No   

Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion   
Not Available   

Properties

Physical Properties
  
  

Hardness
6-7   
6   

Grain Size
Coarse Grained   
Fine Grained   

Fracture
Not Available   
Conchoidal   

Streak
White   
White to Grey   

Porosity
Very Less Porous   
Less Porous   

Luster
Not Available   
Not Available   

Compressive Strength
Not Available   
37.50 N/mm2   
27

Cleavage
Not Available   
Not Available   

Toughness
Not Available   
2.3   

Specific Gravity
Not Available   
2.8-3   

Transparency
Opaque   
Opaque   

Density
2.6 g/cm3   
2.9-3.1 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.84 kJ/Kg K   
15

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India   
India, Russia   

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

Europe
Albania, Romania, Scotland, United Kingdom   
Iceland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Brazil, Colombia, Venezuela   
Brazil   

Deposits in Oceania Continent
  
  

Australia
Central Australia, Western Australia   
Not Yet Found   

Summary >>
<< Reserves

All about Charnockite and Basaltic Trachyandesite Properties

Know all about Charnockite and Basaltic Trachyandesite properties here. All properties of rocks are important as they define the type of rock and its application. Charnockite and Basaltic Trachyandesite belong to Igneous Rocks.Texture of Charnockite is Granular whereas that of Basaltic Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Charnockite appears Veined or Pebbled and Basaltic Trachyandesite appears Dull and Soft. The luster of Charnockite and Basaltic Trachyandesite is not available. Charnockite is available in black, grey, orange, pink, white colors whereas Basaltic Trachyandesite is available in black, brown, light to dark grey colors. The commercial uses of Charnockite are curling, gemstone, laboratory bench tops, tombstones and that of Basaltic Trachyandesite are an oil and gas reservoir, commemorative tablets, creating artwork.

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