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Benmoreite and Charnockite


Charnockite and Benmoreite


Definition

Definition
An iron rich extrusive rock found as a member of the alkali basalt magma series   
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar   

History
  
  

Origin
Isle of Mull, Scotland   
Tamil Nadu, India   

Discoverer
Ben More   
T. H. Holland   

Etymology
From the name of discoverer, Ben More   
From Job Charnock, an administtrator of East India Company   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Volcanic   
Plutonic   

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

Texture

Texture
Glassy, Massive, Porphyritic, Scoriaceous, Trachytic, Vesicular   
Granular   

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

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
No   
No   

Acid Resistant
No   
Yes   

Appearance
Rough and Dull   
Veined or Pebbled   

Uses

Architecture
  
  

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

Exterior Uses
As Building Stone, Paving Stone, Garden Decoration, Office Buildings   
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, Cobblestones, Rail Track Ballast, Roadstone   
As Dimension Stone   

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

Commercial Uses
Commemorative Tablets, Creating Artwork, Curling   
Curling, Gemstone, Laboratory bench tops, Tombstones   

Types

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

Features
Has High structural resistance against erosion and climate, Very fine grained 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
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Benmoreite is a type of Igneous rock which is formed through the cooling and solidification of lava or magma. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.   
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.   

Composition
  
  

Mineral Content
Alkali feldspar, Biotite, Olivine, Plagioclase, Pyroxene, Sodic plagioclase   
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, 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, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional 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, Sea Erosion, Water Erosion, Wind Erosion   
Chemical Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
6   
6-7   

Grain Size
Fine Grained   
Coarse Grained   

Fracture
Conchoidal   
Not Available   

Streak
Black   
White   

Porosity
Less Porous   
Very Less Porous   

Luster
Earthy   
Not Available   

Compressive Strength
37.40 N/mm2   
28
Not Available   

Cleavage
Perfect   
Not Available   

Toughness
2.3   
Not Available   

Specific Gravity
2.8-3   
Not Available   

Transparency
Opaque   
Opaque   

Density
2.9-3.1 g/cm3   
2.6 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K   
15
Not Available   

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

Reserves

Deposits in Eastern Continents
  
  

Asia
India, Russia   
India   

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

Europe
Iceland   
Albania, Romania, Scotland, United Kingdom   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
USA   

South America
Brazil   
Brazil, Colombia, Venezuela   

Deposits in Oceania Continent
  
  

Australia
Not Yet Found   
Central Australia, Western Australia   

Summary >>
<< Reserves

All about Benmoreite and Charnockite Properties

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

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