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Granite and Granodiorite


Granodiorite and Granite


Definition

Definition
Granite is a very hard, granular, crystalline igneous rock which consists mainly of quartz, mica, and feldspar and is often used as building stone  
Granodiorite is a coarse-grained intrusive igneous rock containing quartz and plagioclase, and which has composition in between granite and diorite  

History
  
  

Discoverer
Unknown  
Unknown  

Etymology
From Italian granito, which means grained rock, from grano grain, and from Latin granum  
From granite + diorite  

Class
Igneous Rocks  
Igneous Rocks  

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

Family
  
  

Group
Plutonic  
Plutonic  

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

Texture

Texture
Granular, Phaneritic  
Granular, Phaneritic  

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

Maintenance
More  
More  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
No  

Wind Resistant
Yes  
Yes  

Acid Resistant
No  
No  

Appearance
Veined or Pebbled  
Veined or Pebbled  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Not Available  

Industry
  
  

Construction Industry
As Dimension Stone  
As Dimension Stone  

Medical Industry
Not Available  
Not Available  

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

Other Uses
  
  

Commercial Uses
Curling, Gemstone, Laboratory bench tops, Tombstones, Used in aquariums  
Curling, Gemstone, Laboratory bench tops, Tombstones  

Types

Types
Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite, Hybrid Granite, Granodiorite and Alkali Feldspar Granite  
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  

Archaeological Significance
  
  

Monuments
Used  
Used  

Famous Monuments
Agia Sophia in Istanbul, Turkey, Blue Domed Church in Santorini, Greece, Blue Mosque in Istanbul, Charminar in Hyderabad, India, Diana, Princess of Wales Memorial Fountain in London, UK, Ephesus in Turkey, Georgia Guidestones in Georgia, US, Hermitage in Saint Petersburg, Khajuraho Temples, India, Mahabalipuram in Tamil Nadu, India, Mysore Palace in Karnataka, India, Signers Monument in Augusta, Georgia, Statue of Liberty in New York, USA, Taj Mahal in Agra, India, Tower Bridge in London, Vietnam Veterans Memorial in Washington, US, Washington Monument, US  
Not Available  

Sculpture
Used  
Used  

Famous Sculptures
Avukana Buddha Statue in Sri Lanka, Lincoln Memorial in America, Mount Rushmore National Memorial in South Dakota, US, The Colossal Red Granite Statue of Amenhotep III in Karnak, Egypt  
Not Available  

Pictographs
Not Used  
Used  

Petroglyphs
Not Used  
Used  

Figurines
Used  
Used  

Fossils
Absent  
Absent  

Formation

Formation
Granite is an intrusive igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks  
Granodiorite is an intrusive igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks.  

Composition
  
  

Mineral Content
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz  
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, 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  
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism  

Weathering
Yes  
Yes  

Types of Weathering
Biological Weathering  
Chemical Weathering  

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
6-7  
6  

Grain Size
Large and Coarse Grained  
Medium to Coarse Grained  

Fracture
Not Available  
Not Available  

Streak
White  
White  

Porosity
Less Porous  
Less Porous  

Luster
Dull to Grainy with Sporadic parts Pearly and Vitreous  
Grainy, Pearly and Vitreous  

Compressive Strength
175.00 N/mm2  
13
175.00 N/mm2  
13

Cleavage
Not Available  
Not Available  

Toughness
Not Available  
Not Available  

Specific Gravity
2.6-2.7  
2.6-2.7  

Transparency
Opaque  
Opaque  

Density
2.65-2.75 g/cm3  
2.6-2.8 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K  
16
0.79 kJ/Kg K  
16

Resistance
Heat Resistant, Wear Resistant  
Heat Resistant, Wear Resistant  

Reserves

Deposits in Eastern Continents
  
  

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

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

Europe
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic  
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic  

Others
Not Available  
Not Available  

Deposits in Western Continents
  
  

North America
Canada, USA  
Canada, USA  

South America
Not Available  
Not Available  

Deposits in Oceania Continent
  
  

Australia
Not Available  
Not Available  

Summary >>
<< Reserves

All about Granite and Granodiorite Properties

Know all about Granite and Granodiorite properties here. All properties of rocks are important as they define the type of rock and its application. Granite and Granodiorite belong to Igneous Rocks.Texture of Granite is Granular, Phaneritic whereas that of Granodiorite is Granular, Phaneritic. Granite appears Veined or Pebbled and Granodiorite appears Veined or Pebbled. The luster of Granite is dull to grainy with sporadic parts pearly and vitreous while that of Granodiorite is grainy, pearly and vitreous. Granite and Granodiorite are available in black, grey, orange, pink, white colors. The commercial uses of Granite and Granodiorite are curling, gemstone, laboratory bench tops, tombstones, used in aquariums.

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