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Diorite and Coal


Coal and Diorite


Definition

Definition
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene  
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds  

History
  
  

Origin
-  
USA  

Discoverer
Unknown  
John Peter Salley  

Etymology
From early 19th century coined in French, formed irregularly from Greek diorizein distinguish  
From the Old English term col, which has meant mineral of fossilized carbon since the 13th century  

Class
Igneous Rocks  
Sedimentary Rocks  

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

Family
  
  

Group
Plutonic  
-  

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

Texture

Texture
Phaneritic  
Amorphous, Glassy  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
No  

Scratch Resistant
No  
No  

Stain Resistant
No  
No  

Wind Resistant
Yes  
No  

Acid Resistant
No  
No  

Appearance
Shiny  
Veined or Pebbled  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration  
-  

Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration  
-  

Other Architectural Uses
Curbing  
-  

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate  
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines  
Artifacts  

Other Uses
  
  

Commercial Uses
Creating Artwork, Curling  
Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry  

Types

Types
Plagioclase Diorite and Quartz Diorite  
Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite  

Features
Typically speckled black and white.  
Helps in production of Heat and Electricity, Used as fossil fuel  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Present  

Formation

Formation
Diorite is a coarse-grained intrusive igneous rock which contains large interlocking and randomly oriented crystals and forms when molten lava does not reach the Earth’s surface and cools down in the Earth’s crust.  
Coal forms from the accumulation of plant debris in a swamp environment which is buried by sediments such as mud or sand and then compacted to form coal.  

Composition
  
  

Mineral Content
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon  
Analcime, Apatite, Barite, Calcite, Chalcopyrite, Chlorite, Chromite, Clausthalite, Clay Minerals, Crandallite Group, Dolomite, Feldspar, Galena, Gypsum, Marcasite, Muscovite or Illite, Pyrite, Quartz, Siderite, Sphalerite, Zircon  

Compound Content
Silicon Dioxide  
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur  

Transformation
  
  

Metamorphism
Yes  
Yes  

Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism  
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism  

Weathering
Yes  
No  

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

Erosion
Yes  
No  

Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion  
-  

Properties

Physical Properties
  
  

Hardness
6-7  
1-1.5  

Grain Size
Medium to Coarse Grained  
Medium to Fine Coarse Grained  

Fracture
-  
Conchoidal  

Streak
Bluish Black  
Black  

Porosity
Very Less Porous  
Less Porous  

Luster
Shiny  
Dull to Vitreous to Submetallic  

Compressive Strength
225.00 N/mm2  
8
-  

Cleavage
-  
-  

Toughness
2.1  
-  

Specific Gravity
2.8-3  
1.1-1.4  

Transparency
Opaque  
Opaque  

Density
2.8-3 g/cm3  
1100-1400 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K  
15
1.32 kJ/Kg K  
4

Resistance
Heat Resistant, Pressure Resistant, Wear Resistant  
Heat Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
-  
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam  

Africa
Egypt  
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania  

Europe
Finland, Germany, Italy, Romania, Sweden, Turkey, United Kingdom  
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom  

Others
-  
-  

Deposits in Western Continents
  
  

North America
USA  
Canada, Mexico, USA  

South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru  
Brazil, Chile, Colombia, Venezuela  

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Diorite and Coal Properties

Know all about Diorite and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Diorite belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks.Texture of Diorite is Phaneritic whereas that of Coal is Amorphous, Glassy. Diorite appears Shiny and Coal appears Veined or Pebbled. The luster of Diorite is shiny while that of Coal is dull to vitreous to submetallic. Diorite is available in black, brown, light to dark grey, white colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Diorite are creating artwork, curling and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.

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