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Scoria
Scoria

Tephrite
Tephrite



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Scoria vs Tephrite

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1 Definition
1.1 Definition
Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
1.2 History
1.2.1 Origin
Unknown
Germany
1.2.2 Discoverer
Unknown
Van Tooren
1.3 Etymology
From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung
From Greek tephra, ashes from Indo-European base, to burn
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Volcanic
Volcanic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Vesicular
Aphanitic to Porphyritic
2.2 Color
Black, Brown, Dark Grey to Black, Red
Black, Brown, Colourless, Green, Grey, White
2.3 Maintenance
More
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Igneous Rocks Rocks have it !
81% Igneous Rocks Rocks have it !
2.4.2 Scratch Resistant
86% Igneous Rocks Rocks have it !
86% Igneous Rocks Rocks have it !
2.4.3 Stain Resistant
66% Igneous Rocks Rocks have it !
66% Igneous Rocks Rocks have it !
2.4.4 Wind Resistant
49% Igneous Rocks Rocks have it !
49% Igneous Rocks Rocks have it !
2.4.5 Acid Resistant
48% Igneous Rocks Rocks have it !
48% Igneous Rocks Rocks have it !
2.5 Appearance
Glassy and Vesicular
Vesicular
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Flooring, Homes, Interior Decoration
3.1.2 Exterior Uses
Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, In landscaping and drainage works
Landscaping
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts, Sculpture
3.4 Other Uses
3.4.1 Commercial Uses
As a traction material on snow-covered roads, Creating Artwork, High-temperature insulation, In gas barbecue grills
Production of Lime, Soil Conditioner
4 Types
4.1 Types
Not Available
Not Available
4.2 Features
Available in Lots of Colors and Patterns, Generally rough to touch, Surfaces are often shiny
Host Rock for Lead
4.3 Archaeological Significance
4.3.1 Monuments
Used
Not Yet Used
4.3.2 Famous Monuments
Data Not Available
Not Applicable
4.3.3 Sculpture
Used
Used
4.3.4 Famous Sculptures
Data Not Available
Data Not Available
4.3.5 Pictographs
Used
Not Used
4.3.6 Petroglyphs
Used
Not Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
Scoria forms when magma containing huge amount of dissolved gas flows from a volcano during an eruption.
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.
5.2 Composition
5.2.1 Mineral Content
Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica
Alkali feldspar, Nepheline, Plagioclase, Pyroxene
5.2.2 Compound Content
Ca, NaCl
CaO, Carbon Dioxide, MgO, Silicon Dioxide
5.3 Transformation
5.3.1 Metamorphism
97% Igneous Rocks Rocks have it !
97% Igneous Rocks Rocks have it !
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
5.3.3 Weathering
99% Igneous Rocks Rocks have it !
99% Igneous Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.5 Erosion
92% Igneous Rocks Rocks have it !
92% Igneous Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
5-6
6.5
6.1.2 Grain Size
Fine Grained
Medium to Fine Coarse Grained
6.1.3 Fracture
Conchoidal
Uneven
6.1.4 Streak
White
Bluish Black
6.1.5 Porosity
Highly Porous
Very Less Porous
6.1.6 Luster
Subvitreous to Dull
Subvitreous to Dull
6.1.7 Compressive Strength
Flint
Not Available
Rank: N/A (Overall)
90.00 N/mm2
Rank: 22 (Overall)
Obsidian
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6.1.8 Cleavage
Perfect
Crenulation and Pervasive
6.1.9 Toughness
2.1
2.4
6.1.10 Specific Gravity
Not Available
2.86
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
Not Available
2.8-2.9 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
Not Available
Rank: N/A (Overall)
0.92 kJ/Kg K
Rank: 10 (Overall)
Granulite
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6.2.2 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Afghanistan, Indonesia, Japan, Russia
Not Yet Found
7.1.2 Africa
Ethiopia, Kenya, Tanzania
Namibia, Uganda
7.1.3 Europe
Greece, Hungary, Iceland, Italy, Turkey
Germany, Hungary, Italy, Portugal, Spain
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA
USA
7.2.2 South America
Argentina, Chile, Ecuador, Peru
Not Yet Found
7.3 Deposits in Oceania Continent
7.3.1 Australia
New Zealand, Western Australia
New Zealand, Western Australia

Scoria 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 Scoria and Tephrite Reserves. Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. 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 Scoria vs Tephrite information and Scoria vs Tephrite characteristics in the upcoming sections.

Scoria 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. Scoria vs Tephrite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Scoria and Properties of Tephrite. Learn more about Scoria vs Tephrite in the next section. The interior uses of Scoria include Decorative aggregates and Interior decoration whereas the interior uses of Tephrite include Decorative aggregates, Flooring, Homes and Interior decoration. Due to some exceptional properties of Scoria and Tephrite, they have various applications in construction industry. The uses of Scoria in construction industry include Cement manufacture, Construction aggregate, For road aggregate, In landscaping and drainage works and that of Tephrite include Landscaping.

More about Scoria and Tephrite

Here you can know more about Scoria and Tephrite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Scoria and Tephrite consists of mineral content and compound content. The mineral content of Scoria includes Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica and mineral content of Tephrite includes Alkali feldspar, Nepheline, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Scoria vs Tephrite, the texture, color and appearance plays an important role in determining the type of rock. Scoria is available in black, brown, dark grey to black, red colors whereas, Tephrite is available in black, brown, colourless, green, grey, white colors. Appearance of Scoria is Glassy and Vesicular and that of Tephrite is Vesicular. Properties of rock is another aspect for Scoria vs Tephrite. The hardness of Scoria is 5-6 and that of Tephrite is 6.5. The types of Scoria 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 Scoria is white while that of Tephrite is bluish black. The specific heat capacity of Scoria is Not Available 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.Scoria is heat resistant, impact resistant, pressure resistant, wear resistant whereas Tephrite is heat resistant, impact resistant.

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