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Jasperoid vs Pseudotachylite


Pseudotachylite vs Jasperoid


Definition

Definition
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks  
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.  

History
  
  

Origin
USA  
USA  

Discoverer
Unknown  
Unknown  

Etymology
From silica, the main mineral content of Jasperoid  
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.  

Class
Sedimentary Rocks  
Metamorphic Rocks  

Sub-Class
Durable Rock, Medium Hardness Rock  
Durable Rock, Hard Rock  

Family
  
  

Group
-  
-  

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

Texture

Texture
Earthy  
Quench  

Color
Black, Brown, Green, Grey, Pink, 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
No  
Yes  

Acid Resistant
No  
Yes  

Appearance
Glassy or Pearly  
Dull and Soft  

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock  
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement  

Medical Industry
Taken as a Supplement for Calcium or Magnesium  
-  

Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture  
Artifacts, Monuments  

Other Uses
  
  

Commercial Uses
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)  
Creating Artwork, Gemstone  

Types

Types
-  
Cataclastic rock  

Features
Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits  
Host Rock for Lead  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Present  
Absent  

Formation

Formation
Jasperoid is a rare and peculiar type of metasomatic alteration of rocks. It is formed by extreme alteration of wall rocks within a shear zone which may occur in sediments, andesites, trachytes and basalts.  
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
Clay Minerals, Pyrite, Quartz, Sulfides  
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides  

Compound Content
NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO  
Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur  

Transformation
  
  

Metamorphism
Yes  
Yes  

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

Weathering
No  
No  

Types of Weathering
-  
-  

Erosion
No  
No  

Types of Erosion
-  
-  

Properties

Physical Properties
  
  

Hardness
3.5-4  
7  

Grain Size
Medium to Fine Coarse Grained  
Very fine-grained  

Fracture
Conchoidal  
Uneven  

Streak
White  
Light to dark brown  

Porosity
Less Porous  
Less Porous  

Luster
Vitreous and Pearly  
Vitreous  

Compressive Strength
140.00 N/mm2  
23
60.00 N/mm2  
37

Cleavage
Perfect  
-  

Toughness
1  
-  

Specific Gravity
2.8-3  
2.46-2.86  

Transparency
Transparent to Translucent  
Transparent to Translucent  

Density
2.8-2.9 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, Pressure Resistant, Wear Resistant  
Heat Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India  
South Korea  

Africa
Morocco, Namibia  
Western Africa  

Europe
Austria, Italy, Romania, Spain, Switzerland  
Great Britain, Switzerland  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Mexico, USA  
-  

South America
Brazil, Colombia  
-  

Deposits in Oceania Continent
  
  

Australia
New South Wales, Queensland, Yorke Peninsula  
Central Australia, Western Australia  

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Jasperoid 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 Jasperoid and Pseudotachylite Reserves. Jasperoid is a rare, peculiar type of metasomatic alteration of rocks. 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 Jasperoid vs Pseudotachylite information and Jasperoid vs Pseudotachylite characteristics in the upcoming sections.

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Jasperoid 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. Jasperoid vs Pseudotachylite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Jasperoid and Properties of Pseudotachylite. Learn more about Jasperoid vs Pseudotachylite in the next section. The interior uses of Jasperoid include Decorative aggregates, Floor tiles, Homes and Interior decoration whereas the interior uses of Pseudotachylite include Decorative aggregates, Entryways and Interior decoration. Due to some exceptional properties of Jasperoid and Pseudotachylite, they have various applications in construction industry. The uses of Jasperoid in construction industry include As a flux in the production of steel and pig iron, As a sintering agent in steel industry to process iron ore, As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics, Serves as an oil and gas reservoir rock and that of Pseudotachylite include As dimension stone, Cement manufacture, For road aggregate, Making natural cement.

More about Jasperoid and Pseudotachylite

Here you can know more about Jasperoid and Pseudotachylite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Jasperoid and Pseudotachylite consists of mineral content and compound content. The mineral content of Jasperoid includes Clay Minerals, Pyrite, Quartz, Sulfides and mineral content of Pseudotachylite includes Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides. You can also check out the list of all Sedimentary Rocks. When we have to compare Jasperoid vs Pseudotachylite, the texture, color and appearance plays an important role in determining the type of rock. Jasperoid is available in black, brown, green, grey, pink, white colors whereas, Pseudotachylite is available in black, brown, green, grey, pink, white colors. Appearance of Jasperoid is Glassy or Pearly and that of Pseudotachylite is Dull and Soft. Properties of rock is another aspect for Jasperoid vs Pseudotachylite. The hardness of Jasperoid is 3.5-4 and that of Pseudotachylite is 7. The types of Jasperoid are - 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 Jasperoid is white while that of Pseudotachylite is light to dark brown. The specific heat capacity of Jasperoid 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.Jasperoid is heat resistant, pressure resistant, wear resistant whereas Pseudotachylite is heat resistant.

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