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Larvikite vs Pseudotachylite


Pseudotachylite vs Larvikite


Definition

Definition
Larvikite is an igneous rock and a variety of monzonite, notable for the presence of thumbnail-sized crystals of feldspar  
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.  

History
  
  

Origin
Larvik, Norway  
USA  

Discoverer
Unknown  
Unknown  

Etymology
From the town of Larvik in Norway, where this type of igneous rock is found  
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.  

Class
Igneous Rocks  
Metamorphic Rocks  

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

Family
  
  

Group
Plutonic  
-  

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

Texture

Texture
Phaneritic  
Quench  

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

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
No  

Wind Resistant
Yes  
Yes  

Acid Resistant
No  
Yes  

Appearance
Shiny  
Dull and Soft  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Homes, Interior Decoration  
Decorative Aggregates, Entryways, Interior Decoration  

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate  
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts, Monuments  

Other Uses
  
  

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

Types

Types
Quartz Monzonite, Syenite and Diorite  
Cataclastic rock  

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

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Larvikite 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.  
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Pseudotachylite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.  

Composition
  
  

Mineral Content
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon  
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides  

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

Transformation
  
  

Metamorphism
Yes  
Yes  

Types of Metamorphism
Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism  
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism  

Weathering
Yes  
No  

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

Erosion
Yes  
No  

Types of Erosion
Chemical Erosion  
-  

Properties

Physical Properties
  
  

Hardness
6-7  
7  

Grain Size
Medium to Fine Coarse Grained  
Very fine-grained  

Fracture
-  
Uneven  

Streak
White  
Light to dark brown  

Porosity
Less Porous  
Less Porous  

Luster
Subvitreous to Dull  
Vitreous  

Compressive Strength
310.00 N/mm2  
2
60.00 N/mm2  
37

Cleavage
-  
-  

Toughness
-  
-  

Specific Gravity
2.8-3  
2.46-2.86  

Transparency
Opaque  
Transparent to Translucent  

Density
2.9-2.91 g/cm3  
2.7-2.9 g/cm3  

Thermal Properties
  
  

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

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant  
Heat Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
-  
South Korea  

Africa
-  
Western Africa  

Europe
Bulgaria, England, Germany, Norway, Romania, Switzerland  
Great Britain, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
USA  
-  

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

Deposits in Oceania Continent
  
  

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

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Larvikite vs Pseudotachylite 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 Larvikite and Pseudotachylite Reserves. Larvikite is an igneous rock and a variety of monzonite, notable for the presence of thumbnail-sized crystals of feldspar. Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.. 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 Larvikite vs Pseudotachylite information and Larvikite vs Pseudotachylite characteristics in the upcoming sections.

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

More about Larvikite and Pseudotachylite

Here you can know more about Larvikite and Pseudotachylite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Larvikite and Pseudotachylite consists of mineral content and compound content. The mineral content of Larvikite includes Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon and mineral content of Pseudotachylite includes Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides. You can also check out the list of all Igneous Rocks. When we have to compare Larvikite vs Pseudotachylite, the texture, color and appearance plays an important role in determining the type of rock. Larvikite is available in black, brown, light to dark grey, white colors whereas, Pseudotachylite is available in black, brown, green, grey, pink, white colors. Appearance of Larvikite is Shiny and that of Pseudotachylite is Dull and Soft. Properties of rock is another aspect for Larvikite vs Pseudotachylite. The hardness of Larvikite is 6-7 and that of Pseudotachylite is 7. The types of Larvikite are Quartz Monzonite, Syenite and Diorite whereas types of Pseudotachylite are Cataclastic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Larvikite is white while that of Pseudotachylite is light to dark brown. The specific heat capacity of Larvikite is 0.92 kJ/Kg K and that of Pseudotachylite 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.Larvikite is heat resistant, impact resistant, pressure resistant whereas Pseudotachylite is heat resistant.

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