Home
Compare Rocks


Jasperoid vs Tephrite


Tephrite vs Jasperoid


Definition

Definition
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks   
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock   

History
  
  

Origin
USA   
Germany   

Discoverer
Unknown   
Van Tooren   

Etymology
From silica, the main mineral content of Jasperoid   
From Greek tephra, ashes from Indo-European base, to burn   

Class
Sedimentary Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Volcanic   

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

Texture

Texture
Earthy   
Aphanitic to Porphyritic   

Color
Black, Brown, Colourless, Green, Grey, Pink, White   
Black, Brown, Colourless, Green, Grey, 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   
No   

Appearance
Glassy or Pearly   
Vesicular   

Uses

Architecture
  
  

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

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

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   
Landscaping   

Medical Industry
Taken as a Supplement for Calcium or Magnesium   
Not Yet Used   

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

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)   
Production of Lime, Soil Conditioner   

Types

Types
Not Available   
Not Available   

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
Used   
Not Yet Used   

Famous Monuments
Data Not Available   
Not Applicable   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
Used   

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.   
Tephrite 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.   

Composition
  
  

Mineral Content
Clay Minerals, Pyrite, Quartz, Sulfides   
Alkali feldspar, Nepheline, Plagioclase, Pyroxene   

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

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
No   
Yes   

Types of Weathering
Not Applicable   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion   

Properties

Physical Properties
  
  

Hardness
3.5-4   
6.5   

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

Fracture
Conchoidal   
Uneven   

Streak
White   
Bluish Black   

Porosity
Less Porous   
Very Less Porous   

Luster
Vitreous and Pearly   
Subvitreous to Dull   

Compressive Strength
140.00 N/mm2   
15
90.00 N/mm2   
22

Cleavage
Perfect   
Crenulation and Pervasive   

Toughness
1   
2.4   

Specific Gravity
2.8-3   
2.86   

Transparency
Transparent to Translucent   
Opaque   

Density
2.8-2.9 g/cm3   
2.8-2.9 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, Impact Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India   
Not Yet Found   

Africa
Morocco, Namibia   
Namibia, Uganda   

Europe
Austria, Italy, Romania, Spain, Switzerland   
Germany, Hungary, Italy, Portugal, Spain   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Mexico, USA   
USA   

South America
Brazil, Colombia   
Not Yet Found   

Deposits in Oceania Continent
  
  

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

Definition >>
<< All

Jasperoid vs Tephrite 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 Tephrite Reserves. Jasperoid is a rare, peculiar type of metasomatic alteration of rocks. Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock. 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 Tephrite information and Jasperoid vs Tephrite characteristics in the upcoming sections.

Compare Sedimentary Rocks

Jasperoid vs Tephrite 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 Tephrite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Jasperoid and Properties of Tephrite. Learn more about Jasperoid vs Tephrite in the next section. The interior uses of Jasperoid include Decorative aggregates, Floor tiles, Homes and Interior decoration whereas the interior uses of Tephrite include Decorative aggregates, Flooring, Homes and Interior decoration. Due to some exceptional properties of Jasperoid and Tephrite, 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 Tephrite include Landscaping.

More about Jasperoid and Tephrite

Here you can know more about Jasperoid and Tephrite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Jasperoid and Tephrite consists of mineral content and compound content. The mineral content of Jasperoid includes Clay Minerals, Pyrite, Quartz, Sulfides and mineral content of Tephrite includes Alkali feldspar, Nepheline, Plagioclase, Pyroxene. You can also check out the list of all Sedimentary Rocks. When we have to compare Jasperoid vs Tephrite, the texture, color and appearance plays an important role in determining the type of rock. Jasperoid is available in black, brown, colourless, green, grey, pink, white colors whereas, Tephrite is available in black, brown, colourless, green, grey, white colors. Appearance of Jasperoid is Glassy or Pearly and that of Tephrite is Vesicular. Properties of rock is another aspect for Jasperoid vs Tephrite. The hardness of Jasperoid is 3.5-4 and that of Tephrite is 6.5. The types of Jasperoid are Not Available whereas types of Tephrite are Not Available. 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 Tephrite is bluish black. The specific heat capacity of Jasperoid is 0.92 kJ/Kg K and that of Tephrite 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 Tephrite is heat resistant, impact resistant.

Fossil Rocks

Fossil Rocks

» More Fossil Rocks

Compare Sedimentary Rocks

» More Compare Sedimentary Rocks