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Rapakivi Granite vs Andesite


Andesite vs Rapakivi Granite


Definition

Definition
Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase   
Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava   

History
  
  

Origin
Finland, Europe   
North America   

Discoverer
Jakob Sederholm   
Unknown   

Etymology
From Finnish Rapakivi which stands for crumbly rock   
From Andes mountains, where it is found in abundance   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture

Texture
Granular, Phaneritic   
Aphanitic to Porphyritic   

Color
Black, Grey, Orange, Pink, White   
Bluish - Grey, Grey, Pink, Yellow   

Maintenance
More   
More   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
No   
No   

Acid Resistant
Yes   
Yes   

Appearance
Veined or Pebbled   
Dull and Soft   

Uses

Architecture
  
  

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

Exterior Uses
As Building Stone, As Facing Stone, Office Buildings, Paving Stone, Resorts   
Office Buildings, Roof Tiles   

Other Architectural Uses
Not Yet Used   
Curbing   

Industry
  
  

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

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

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

Types

Types
Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite and Hybrid Granite   
Icelandite   

Features
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock   
Generally rough to touch, High silica content, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Middle of the Earth in Ecuador   

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
Granite is an igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks   
Andesite is a fine-grained igneous rock that forms when the magma is erupted onto the surface and is crystallized quickly.   

Composition
  
  

Mineral Content
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz   
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon   

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

Transformation
  
  

Metamorphism
Yes   
Yes   

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional 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, Wind Erosion   
Chemical Erosion, Coastal Erosion, Glacier Erosion   

Properties

Physical Properties
  
  

Hardness
6-7   
7   

Grain Size
Large and Coarse Grained   
Very fine-grained   

Fracture
Not Available   
Uneven   

Streak
White   
White   

Porosity
Less Porous   
Less Porous   

Luster
Dull to Grainy with Sporadic parts Pearly and Vitreous   
Vitreous   

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

Cleavage
Not Available   
Not Available   

Toughness
Not Available   
1.1   

Specific Gravity
2.6-2.7   
2.5-2.8   

Transparency
Opaque   
Opaque   

Density
2.6-2.8 g/cm3   
2.11-2.36 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K   
16
2.39 kJ/Kg K   
2

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   
India, Indonesia, Japan, Nepal, South Korea   

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

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

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
Mexico, USA   

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

Deposits in Oceania Continent
  
  

Australia
Not Yet Found   
New South Wales, New Zealand, Western Australia   

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Rapakivi Granite vs Andesite 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 Rapakivi Granite and Andesite Reserves. Rapakivi Granite is a hornblende-biotite Granite containing large rounded crystals of orthoclase which are mantled with oligoclase. Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. 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 Rapakivi Granite vs Andesite information and Rapakivi Granite vs Andesite characteristics in the upcoming sections.

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Rapakivi Granite vs Andesite 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. Rapakivi Granite vs Andesite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Rapakivi Granite and Properties of Andesite. Learn more about Rapakivi Granite vs Andesite in the next section. The interior uses of Rapakivi Granite include Bathrooms, Countertops, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels, Interior decoration, Kitchens and Stair treads whereas the interior uses of Andesite include Decorative aggregates, Floor tiles, Homes, Interior decoration and Kitchens. Due to some exceptional properties of Rapakivi Granite and Andesite, they have various applications in construction industry. The uses of Rapakivi Granite in construction industry include As dimension stone and that of Andesite include Cobblestones, Construction aggregate, For road aggregate.

More about Rapakivi Granite and Andesite

Here you can know more about Rapakivi Granite and Andesite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Rapakivi Granite and Andesite consists of mineral content and compound content. The mineral content of Rapakivi Granite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz and mineral content of Andesite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Rapakivi Granite vs Andesite, the texture, color and appearance plays an important role in determining the type of rock. Rapakivi Granite is available in black, grey, orange, pink, white colors whereas, Andesite is available in bluish - grey, grey, pink, yellow colors. Appearance of Rapakivi Granite is Veined or Pebbled and that of Andesite is Dull and Soft. Properties of rock is another aspect for Rapakivi Granite vs Andesite. The hardness of Rapakivi Granite is 6-7 and that of Andesite is 7. The types of Rapakivi Granite are Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite and Hybrid Granite whereas types of Andesite are Icelandite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Rapakivi Granite and Andesite is white. The specific heat capacity of Rapakivi Granite is 0.79 kJ/Kg K and that of Andesite is 2.39 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Rapakivi Granite is heat resistant, wear resistant whereas Andesite is heat resistant, pressure resistant, wear resistant.

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