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Granite vs Dacite


Dacite vs 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   
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite   

History
  
  

Origin
Unknown   
Romania and Moldova, Europe   

Discoverer
Unknown   
Unknown   

Etymology
From Italian granito, which means grained rock, from grano grain, and from Latin granum   
From Dacia, a province of the Roman Empire which lay between the Danube River and Carpathian Mountains where the rock was first described   

Class
Igneous Rocks   
Igneous Rocks   

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

Family
  
  

Group
Plutonic   
Volcanic   

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

Texture

Texture
Granular, Phaneritic   
Aphanitic to Porphyritic   

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

Maintenance
More   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
No   

Stain Resistant
Yes   
No   

Wind Resistant
Yes   
No   

Acid Resistant
No   
No   

Appearance
Veined or Pebbled   
Vesicular   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

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

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Monuments, Sculpture, Small Figurines   
Artifacts   

Other Uses
  
  

Commercial Uses
Curling, Gemstone, Laboratory bench tops, Tombstones, Used in aquariums   
Commemorative Tablets, Creating Artwork   

Types

Types
Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite, Hybrid Granite, Granodiorite and Alkali Feldspar Granite   
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite   

Features
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock   
Host Rock for Lead, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Used   
Not Yet 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 Applicable   

Sculpture
Used   
Not Yet 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 Applicable   

Pictographs
Not Used   
Used   

Petroglyphs
Not Used   
Used   

Figurines
Used   
Not Yet 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   
Dacitic magma is formed by the subduction of young oceanic crust under a thick felsic continental plate. Further, the Oceanic crust is hydrothermally altered as quartz and sodium are added.   

Composition
  
  

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

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

Transformation
  
  

Metamorphism
Yes   
Yes   

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism   
Burial Metamorphism, Cataclastic 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   

Properties

Physical Properties
  
  

Hardness
6-7   
2-2.25   

Grain Size
Large and Coarse Grained   
Medium to Fine Coarse Grained   

Fracture
Not Available   
Conchoidal   

Streak
White   
White   

Porosity
Less Porous   
Less Porous   

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

Compressive Strength
175.00 N/mm2   
13
Not Available   

Cleavage
Not Available   
Perfect   

Toughness
Not Available   
Not Available   

Specific Gravity
2.6-2.7   
2.86-2.87   

Transparency
Opaque   
Translucent   

Density
2.65-2.75 g/cm3   
2.77-2.771 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K   
16
0.92 kJ/Kg K   
10

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

Reserves

Deposits in Eastern Continents
  
  

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

Africa
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa   
Not Yet Found   

Europe
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela   
France, Greece, Romania, Scotland, Spain   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, USA   
USA   

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

Deposits in Oceania Continent
  
  

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

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Granite vs Dacite 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 Granite and Dacite Reserves. Granite is a very hard, granular, crystalline igneous rock which consists mainly of quartz, mica, and feldspar and is often used as building stone. Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite. 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 Granite vs Dacite information and Granite vs Dacite characteristics in the upcoming sections.

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

More about Granite and Dacite

Here you can know more about Granite and Dacite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Granite and Dacite consists of mineral content and compound content. The mineral content of Granite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz and mineral content of Dacite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Granite vs Dacite, the texture, color and appearance plays an important role in determining the type of rock. Granite is available in black, grey, orange, pink, white colors whereas, Dacite is available in bluish - grey, brown, grey, light to dark grey colors. Appearance of Granite is Veined or Pebbled and that of Dacite is Vesicular. Properties of rock is another aspect for Granite vs Dacite. The hardness of Granite is 6-7 and that of Dacite is 2-2.25. The types of Granite are Igneous Protolith Granite, Sedimentary Protolith Granite, Mantle Granite, Anorogenic Granite, Hybrid Granite, Granodiorite and Alkali Feldspar Granite whereas types of Dacite are Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Granite and Dacite is white. The specific heat capacity of Granite is 0.79 kJ/Kg K and that of Dacite is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Granite is heat resistant, wear resistant whereas Dacite is heat resistant, impact resistant, pressure resistant, wear resistant.

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