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Granite and Pyrolite


Pyrolite 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  
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt  

History
  
  

Origin
-  
Pike County, U.S  

Discoverer
Alexander von Humboldt  
Unknown  

Etymology
From Italian granito, which means grained rock, from grano grain, and from Latin granum  
From the chemical and mineralogical composition of the upper mantle of the Earth  

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, Opaque Rock  

Texture

Texture
Granular, Phaneritic  
Phaneritic  

Color
Black, Grey, Orange, Pink, White  
Dark Greenish - Grey  

Maintenance
More  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
No  

Wind Resistant
Yes  
No  

Acid Resistant
No  
Yes  

Appearance
Veined or Pebbled  
Rough and Shiny  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone  
As Dimension Stone, Cobblestones  

Medical Industry
-  
-  

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

Other Uses
  
  

Commercial Uses
Curling, Gemstone, Laboratory bench tops, Tombstones, Used in aquariums  
Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds  

Types

Types
Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite, Hybrid Granite, Granodiorite and Alkali Feldspar Granite  
Dunite, Wehrlite, Harzburgite, Lherzolite  

Features
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock  
Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

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  
-  

Sculpture
-  
-  

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  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

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  
Pyrolite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.  

Composition
  
  

Mineral Content
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz  
Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene  

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide  
Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, 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  
Biological Weathering, Chemical Weathering, Mechanical Weathering  

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
6-7  
5.5-6  

Grain Size
Large and Coarse Grained  
Coarse Grained  

Fracture
-  
Irregular  

Streak
White  
White  

Porosity
Less Porous  
Less Porous  

Luster
Dull to Grainy with Sporadic parts Pearly and Vitreous  
Shiny  

Compressive Strength
175.00 N/mm2  
20
107.55 N/mm2  
28

Cleavage
-  
-  

Toughness
-  
2.1  

Specific Gravity
2.6-2.7  
3-3.01  

Transparency
Opaque  
Translucent to Opaque  

Density
2.65-2.75 g/cm3  
3.1-3.4 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K  
17
1.25 kJ/Kg K  
6

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

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam  
China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey  

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

Europe
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic  
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada, USA  
Canada, USA  

South America
-  
Brazil  

Deposits in Oceania Continent
  
  

Australia
-  
New Zealand, Western Australia  

Summary >>
<< Reserves

All about Granite and Pyrolite Properties

Know all about Granite and Pyrolite properties here. All properties of rocks are important as they define the type of rock and its application. Granite and Pyrolite belong to Igneous Rocks.Texture of Granite is Granular, Phaneritic whereas that of Pyrolite is Phaneritic. Granite appears Veined or Pebbled and Pyrolite appears Rough and Shiny. The luster of Granite is dull to grainy with sporadic parts pearly and vitreous while that of Pyrolite is shiny. Granite is available in black, grey, orange, pink, white colors whereas Pyrolite is available in dark greenish - grey colors. The commercial uses of Granite are curling, gemstone, laboratory bench tops, tombstones, used in aquariums and that of Pyrolite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.

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