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Diorite and Granulite


Granulite and Diorite


Definition

Definition
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene  
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.  

History
  
  

Origin
-  
Central Europe  

Discoverer
Unknown  
Unknown  

Etymology
From early 19th century coined in French, formed irregularly from Greek diorizein distinguish  
From Latin granulum, a little grain or fine grained  

Class
Igneous Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
Plutonic  
-  

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

Texture

Texture
Phaneritic  
Granoblastic  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
No  
Yes  

Stain Resistant
No  
Yes  

Wind Resistant
Yes  
No  

Acid Resistant
No  
No  

Appearance
Shiny  
Veined or Pebbled  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate  
As Dimension Stone, Building houses or walls  

Medical Industry
-  
-  

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

Other Uses
  
  

Commercial Uses
Creating Artwork, Curling  
Curling, Gemstone, Laboratory bench tops, Soil Conditioner, Tombstones  

Types

Types
Plagioclase Diorite and Quartz Diorite  
Metamorphic rock  

Features
Typically speckled black and white.  
Clasts are smooth to touch  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

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.  
Granulite is a fine-grained granular metamorphic rock in which the main component minerals are feldspars and quartz and forms at high temperature and pressure conditions.  

Composition
  
  

Mineral Content
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon  
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Quartz  

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

Transformation
  
  

Metamorphism
Yes  
No  

Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism  
-  

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
6-7  
6-7  

Grain Size
Medium to Coarse Grained  
Medium to Coarse Grained  

Fracture
-  
-  

Streak
Bluish Black  
White  

Porosity
Very Less Porous  
Very Less Porous  

Luster
Shiny  
Vitreous  

Compressive Strength
225.00 N/mm2  
8
175.00 N/mm2  
20

Cleavage
-  
-  

Toughness
2.1  
-  

Specific Gravity
2.8-3  
2.8-3.0  

Transparency
Opaque  
Opaque  

Density
2.8-3 g/cm3  
3.06-3.33 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K  
15
0.14 kJ/Kg K  
33

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

Reserves

Deposits in Eastern Continents
  
  

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

Africa
Egypt  
Angola, Egypt, Madagascar, Nigeria, South Africa  

Europe
Finland, Germany, Italy, Romania, Sweden, Turkey, United Kingdom  
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic  

Others
-  
-  

Deposits in Western Continents
  
  

North America
USA  
Canada, USA  

South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru  
-  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Western Australia  
-  

Summary >>
<< Reserves

All about Diorite and Granulite Properties

Know all about Diorite and Granulite properties here. All properties of rocks are important as they define the type of rock and its application. Diorite belongs to Igneous Rocks while Granulite belongs to Metamorphic Rocks.Texture of Diorite is Phaneritic whereas that of Granulite is Granoblastic. Diorite appears Shiny and Granulite appears Veined or Pebbled. The luster of Diorite is shiny while that of Granulite is vitreous. Diorite and Granulite are available in black, brown, light to dark grey, white colors. The commercial uses of Diorite are creating artwork, curling and that of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones.

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