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Blue Granite vs Dacite


Dacite vs Blue Granite


Definition

Definition
Blue Granite is an igneous rock and a variety of Larvikite, notable for the presence of thumbnail-sized blue crystals of feldspar  
Dacite is a volcanic igneous rock which is rintermediate in composition between andesite and rhyolite  

History
  
  

Origin
-  
Romania and Moldova, Europe  

Discoverer
Unknown  
Unknown  

Etymology
From the color of rock, Blue  
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, Medium Hardness Rock  
Durable Rock, Soft Rock  

Family
  
  

Group
Volcanic  
Volcanic  

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

Texture

Texture
Phaneritic  
Aphanitic to Porphyritic  

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

Maintenance
Less  
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
Shiny  
Vesicular  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Floor Tiles, Flooring, Interior Decoration  
Decorative Aggregates, Entryways, Interior Decoration  

Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration  
As Building Stone, Paving Stone, Garden Decoration  

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

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

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines  
Artifacts  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Commemorative Tablets, Creating Artwork, Curling  
Commemorative Tablets, Creating Artwork  

Types

Types
Granite  
Footwall Dacite, Hanging wall Dacite, Tuff and Biotite Dacite  

Features
Available in lots of colors, Is one of the oldest rock  
Host Rock for Lead, Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Blue Granite is an igneous rock which is a variety of Larvikite and is known mainly for the presence of thumbnail-sized crystals of feldspar.   
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
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon  
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, Chemical Weathering  
Biological Weathering, Chemical Weathering, Mechanical Weathering  

Erosion
Yes  
Yes  

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

Properties

Physical Properties
  
  

Hardness
6-7  
2-2.25  

Grain Size
Medium to Fine Coarse Grained  
Medium to Fine Coarse Grained  

Fracture
-  
Conchoidal  

Streak
White  
White  

Porosity
Less Porous  
Less Porous  

Luster
Subvitreous to Dull  
Subvitreous to Dull  

Compressive Strength
175.00 N/mm2  
20
70.00 N/mm2  
35

Cleavage
-  
Perfect  

Toughness
-  
-  

Specific Gravity
2.8-3  
2.86-2.87  

Transparency
Opaque  
Translucent  

Density
2.9-2.91 g/cm3  
2.77-2.771 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.79 kJ/Kg K  
17
0.92 kJ/Kg K  
10

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

Reserves

Deposits in Eastern Continents
  
  

Asia
-  
-  

Africa
-  
-  

Europe
Bulgaria, England, Germany, Norway, Romania, Switzerland  
France, Greece, Romania, Scotland, Spain  

Others
-  
-  

Deposits in Western Continents
  
  

North America
USA  
USA  

South America
Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Peru  
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela  

Deposits in Oceania Continent
  
  

Australia
New South Wales, New Zealand, Queensland, South Australia, Western Australia  
New Zealand, South Australia, Western Australia  

Definition >>
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Blue 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 Blue Granite and Dacite Reserves. Blue Granite is an igneous rock and a variety of Larvikite, notable for the presence of thumbnail-sized blue crystals of feldspar. 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 Blue Granite vs Dacite information and Blue Granite vs Dacite characteristics in the upcoming sections.

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

More about Blue Granite and Dacite

Here you can know more about Blue Granite and Dacite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Blue Granite and Dacite consists of mineral content and compound content. The mineral content of Blue Granite includes Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon 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 Blue Granite vs Dacite, the texture, color and appearance plays an important role in determining the type of rock. Blue Granite is available in black, brown, light to dark grey, white colors whereas, Dacite is available in bluish - grey, brown, grey, light to dark grey colors. Appearance of Blue Granite is Shiny and that of Dacite is Vesicular. Properties of rock is another aspect for Blue Granite vs Dacite. The hardness of Blue Granite is 6-7 and that of Dacite is 2-2.25. The types of Blue Granite are 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 Blue Granite and Dacite is white. The specific heat capacity of Blue 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.Blue Granite is heat resistant, impact resistant, pressure resistant whereas Dacite is heat resistant, impact resistant, pressure resistant, wear resistant.

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