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Diorite vs Rapakivi Granite


Rapakivi Granite vs Diorite


Definition

Definition
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene   
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase   

History
  
  

Origin
Unknown   
Finland, Europe   

Discoverer
Unknown   
Jakob Sederholm   

Etymology
From early 19th century coined in French, formed irregularly from Greek diorizein distinguish   
From Finnish Rapakivi which stands for crumbly rock   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Plutonic   

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

Texture

Texture
Phaneritic   
Granular, Phaneritic   

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

Maintenance
Less   
More   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
Yes   
No   

Acid Resistant
No   
Yes   

Appearance
Shiny   
Veined or Pebbled   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Not Yet Used   

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate   
As Dimension Stone   

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

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

Types

Types
Not Available   
Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite and Hybrid Granite   

Features
Typically speckled black and white.   
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
Not Used   
Not Used   

Petroglyphs
Not Used   
Not Used   

Figurines
Used   
Used   

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

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, Pyroxene, Quartz   

Compound Content
Silicon 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
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism   

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
6-7   
6-7   

Grain Size
Medium to Coarse Grained   
Large and Coarse Grained   

Fracture
Not Available   
Not Available   

Streak
Bluish Black   
White   

Porosity
Very Less Porous   
Less Porous   

Luster
Shiny   
Dull to Grainy with Sporadic parts Pearly and Vitreous   

Compressive Strength
225.00 N/mm2   
7
175.00 N/mm2   
13

Cleavage
Not Available   
Not Available   

Toughness
2.1   
Not Available   

Specific Gravity
2.8-3   
2.6-2.7   

Transparency
Opaque   
Opaque   

Density
2.8-3 g/cm3   
2.6-2.8 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.79 kJ/Kg K   
16

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

Reserves

Deposits in Eastern Continents
  
  

Asia
Not Yet Found   
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam   

Africa
Egypt   
Angola, Egypt, Madagascar, Namibia, 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, Venezuela   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Canada, USA   

South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru   
Not Yet Found   

Deposits in Oceania Continent
  
  

Australia
New Zealand, Western Australia   
Not Yet Found   

Definition >>
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Diorite vs Rapakivi Granite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Diorite and Rapakivi Granite Reserves. Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene. Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Diorite vs Rapakivi Granite information and Diorite vs Rapakivi Granite characteristics in the upcoming sections.

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Diorite vs Rapakivi Granite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Diorite vs Rapakivi Granite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Diorite and Properties of Rapakivi Granite. Learn more about Diorite vs Rapakivi Granite in the next section. The interior uses of Diorite include Decorative aggregates and Interior decoration whereas the interior uses of Rapakivi Granite include Bathrooms, Countertops, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels, Interior decoration, Kitchens and Stair treads. Due to some exceptional properties of Diorite and Rapakivi Granite, they have various applications in construction industry. The uses of Diorite in construction industry include As dimension stone, Cement manufacture, Cobblestones, Construction aggregate, For road aggregate and that of Rapakivi Granite include As dimension stone.

More about Diorite and Rapakivi Granite

Here you can know more about Diorite and Rapakivi Granite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Diorite and Rapakivi Granite consists of mineral content and compound content. The mineral content of Diorite includes Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon and mineral content of Rapakivi Granite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Diorite vs Rapakivi Granite, the texture, color and appearance plays an important role in determining the type of rock. Diorite is available in black, brown, light to dark grey, white colors whereas, Rapakivi Granite is available in black, grey, orange, pink, white colors. Appearance of Diorite is Shiny and that of Rapakivi Granite is Veined or Pebbled. Properties of rock is another aspect for Diorite vs Rapakivi Granite. Hardness of Diorite and Rapakivi Granite is 6-7. The types of Diorite are Not Available whereas types of Rapakivi Granite are Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite and Hybrid Granite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Diorite is bluish black while that of Rapakivi Granite is white. The specific heat capacity of Diorite is Not Available and that of Rapakivi Granite is 0.79 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Diorite is heat resistant, pressure resistant, wear resistant whereas Rapakivi Granite is heat resistant, wear resistant.

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