Home
×

Tephrite
Tephrite

Banded iron formation
Banded iron formation



ADD
Compare
X
Tephrite
X
Banded iron formation

Tephrite vs Banded iron formation

1 Definition
1.1 Definition
Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock
Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age
1.2 History
1.2.1 Origin
Germany
Western Australia, Minnesota
1.2.2 Discoverer
Van Tooren
Unknown
1.3 Etymology
From Greek tephra, ashes from Indo-European base, to burn
From its formation process
1.4 Class
Igneous Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Volcanic
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Aphanitic to Porphyritic
Banded, Trellis
2.2 Color
Black, Brown, Colourless, Green, Grey, White
Red, Reddish Brown
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Igneous Rocks Rocks have it !
59% Sedimentary Rocks Rocks have it !
2.4.2 Scratch Resistant
86% Igneous Rocks Rocks have it !
62% Sedimentary Rocks Rocks have it !
2.4.3 Stain Resistant
66% Igneous Rocks Rocks have it !
43% Sedimentary Rocks Rocks have it !
2.4.4 Wind Resistant
49% Igneous Rocks Rocks have it !
38% Sedimentary Rocks Rocks have it !
2.4.5 Acid Resistant
48% Igneous Rocks Rocks have it !
22% Sedimentary Rocks Rocks have it !
2.5 Appearance
Vesicular
Layered, Banded, Veined and Shiny
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Flooring, Homes, Interior Decoration
Decorative Aggregates, Homes
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
Paving Stone, Office Buildings
3.1.3 Other Architectural Uses
Curbing
Curbing, Whetstones
3.2 Industry
3.2.1 Construction Industry
Landscaping
As Dimension Stone, Used for flooring, stair treads, borders and window sills.
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Sculpture
Artifacts
3.4 Other Uses
3.4.1 Commercial Uses
Production of Lime, Soil Conditioner
As a touchstone, Cemetery Markers, Creating Artwork
4 Types
4.1 Types
Not Available
Algoma-type , Lake Superior-type, Superior-type and Taconite
4.2 Features
Host Rock for Lead
Is one of the oldest rock
4.3 Archaeological Significance
4.3.1 Monuments
Not Yet Used
Not Yet Used
4.3.2 Famous Monuments
Not Applicable
Not Applicable
4.3.3 Sculpture
Used
Not Yet Used
4.3.4 Famous Sculptures
Data Not Available
Not Applicable
4.3.5 Pictographs
Not Used
Not Used
4.3.6 Petroglyphs
Not Used
Not Used
4.3.7 Figurines
Used
Not Yet Used
4.4 Fossils
Absent
Present
5 Formation
5.1 Formation
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.
The banded iron layers are formed in sea water when oxygen is released by photosynthetic cyano-bacteria. The oxygen then combines with dissolved iron in ocean to form insoluble iron oxides, which precipitated out, forming a thin layer of banded iron formation on ocean floor.
5.2 Composition
5.2.1 Mineral Content
Alkali feldspar, Nepheline, Plagioclase, Pyroxene
Hematite, Magnetite, Quartz
5.2.2 Compound Content
CaO, Carbon Dioxide, MgO, Silicon Dioxide
Fe, Iron(III) Oxide, Silicon Dioxide
5.3 Transformation
5.3.1 Metamorphism
97% Igneous Rocks Rocks have it !
19% Sedimentary Rocks Rocks have it !
5.3.2 Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism
Not Applicable
5.3.3 Weathering
99% Igneous Rocks Rocks have it !
78% Sedimentary Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Weathering
5.3.5 Erosion
92% Igneous Rocks Rocks have it !
86% Sedimentary Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion
Coastal Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6.5
5.5-6
6.1.2 Grain Size
Medium to Fine Coarse Grained
Large and Coarse Grained
6.1.3 Fracture
Uneven
Uneven, Splintery or Conchoidal
6.1.4 Streak
Bluish Black
White
6.1.5 Porosity
Very Less Porous
Highly Porous
6.1.6 Luster
Subvitreous to Dull
Earthy
6.1.7 Compressive Strength
Flint
90.00 N/mm2
Rank: 22 (Overall)
Not Available
Rank: N/A (Overall)
Obsidian
ADD ⊕
6.1.8 Cleavage
Crenulation and Pervasive
Imperfect
6.1.9 Toughness
2.4
1.5
6.1.10 Specific Gravity
2.86
5.0-5.3
6.1.11 Transparency
Opaque
Translucent to Opaque
6.1.12 Density
2.8-2.9 g/cm3
Not Available
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
0.92 kJ/Kg K
Rank: 10 (Overall)
3.20 kJ/Kg K
Rank: 1 (Overall)
Granulite
ADD ⊕
6.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Not Yet Found
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
7.1.2 Africa
Namibia, Uganda
Kenya, Morocco, South Africa, Tanzania
7.1.3 Europe
Germany, Hungary, Italy, Portugal, Spain
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
7.1.4 Others
Not Yet Found
Greenland, Mid-Atlantic Ridge
7.2 Deposits in Western Continents
7.2.1 North America
USA
Canada, Mexico, USA
7.2.2 South America
Not Yet Found
Bolivia, Brazil
7.3 Deposits in Oceania Continent
7.3.1 Australia
New Zealand, Western Australia
New South Wales, Queensland, South Australia, Western Australia

Tephrite vs Banded iron formation 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 Tephrite and Banded iron formation Reserves. Tephrite is an aphanitic to porphyritic textured, volcanic igneous rock. Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age. 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 Tephrite vs Banded iron formation information and Tephrite vs Banded iron formation characteristics in the upcoming sections.

Tephrite vs Banded iron formation 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. Tephrite vs Banded iron formation characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Tephrite and Properties of Banded iron formation. Learn more about Tephrite vs Banded iron formation in the next section. The interior uses of Tephrite include Decorative aggregates, Flooring, Homes and Interior decoration whereas the interior uses of Banded iron formation include Decorative aggregates and Homes. Due to some exceptional properties of Tephrite and Banded iron formation, they have various applications in construction industry. The uses of Tephrite in construction industry include Landscaping and that of Banded iron formation include As dimension stone, Used for flooring, stair treads, borders and window sills..

More about Tephrite and Banded iron formation

Here you can know more about Tephrite and Banded iron formation. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Tephrite and Banded iron formation consists of mineral content and compound content. The mineral content of Tephrite includes Alkali feldspar, Nepheline, Plagioclase, Pyroxene and mineral content of Banded iron formation includes Hematite, Magnetite, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Tephrite vs Banded iron formation, the texture, color and appearance plays an important role in determining the type of rock. Tephrite is available in black, brown, colourless, green, grey, white colors whereas, Banded iron formation is available in red, reddish brown colors. Appearance of Tephrite is Vesicular and that of Banded iron formation is Layered, Banded, Veined and Shiny. Properties of rock is another aspect for Tephrite vs Banded iron formation. The hardness of Tephrite is 6.5 and that of Banded iron formation is 5.5-6. The types of Tephrite are Not Available whereas types of Banded iron formation are Algoma-type , Lake Superior-type, Superior-type and Taconite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Tephrite is bluish black while that of Banded iron formation is white. The specific heat capacity of Tephrite is 0.92 kJ/Kg K and that of Banded iron formation is 3.20 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Tephrite is heat resistant, impact resistant whereas Banded iron formation is heat resistant, impact resistant, pressure resistant, wear resistant.