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Lamprophyre vs Banded iron formation


Banded iron formation vs Lamprophyre


Definition

Definition
Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions  
Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age  

History
  
  

Origin
-  
Western Australia, Minnesota  

Discoverer
Unknown  
Johann Gottlob Lehmann  

Etymology
From Greek lampros bright and shining + porphureos purple  
From its formation process  

Class
Igneous Rocks  
Sedimentary Rocks  

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

Family
  
  

Group
Plutonic  
-  

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

Texture

Texture
Porphyritic  
Banded, Trellis  

Color
Black, Bluish - Grey, Brown, Dark Greenish - Grey, Green, Grey  
Red, Reddish Brown  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
No  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
Yes  

Wind Resistant
No  
No  

Acid Resistant
No  
No  

Appearance
Dull, Banded and Foilated  
Layered, Banded, Veined and Shiny  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration  
Decorative Aggregates, Homes  

Exterior Uses
As Building Stone, Office Buildings  
Paving Stone, Office Buildings  

Other Architectural Uses
Curbing  
Curbing, Whetstones  

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories  
As Dimension Stone, Used for flooring, stair treads, borders and window sills.  

Medical Industry
Taken as a Supplement for Calcium or Magnesium  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture  
Artifacts  

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)  
As a touchstone, Cemetery Markers, Creating Artwork  

Types

Types
Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite  
Algoma-type , Lake Superior-type, Superior-type and Taconite  

Features
Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny  
Is one of the oldest rock  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Present  

Formation

Formation
Lamprophyre formation takes place deep beneath the Earth’s surface at around 150 to 450 kilometres, and are erupted rapidly and violently.  
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.  

Composition
  
  

Mineral Content
Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene  
Hematite, Magnetite, Quartz  

Compound Content
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide  
Fe, Iron(III) Oxide, Silicon Dioxide  

Transformation
  
  

Metamorphism
Yes  
No  

Types of Metamorphism
Cataclastic Metamorphism, Impact Metamorphism  
-  

Weathering
Yes  
Yes  

Types of Weathering
Biological Weathering  
Chemical Weathering  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion  
Coastal Erosion, Wind Erosion  

Properties

Physical Properties
  
  

Hardness
5-6  
5.5-6  

Grain Size
Fine to Coarse Grained  
Large and Coarse Grained  

Fracture
Conchoidal  
Uneven, Splintery or Conchoidal  

Streak
White  
White  

Porosity
Very Less Porous  
Highly Porous  

Luster
Subvitreous to Dull  
Earthy  

Compressive Strength
120.00 N/mm2  
26
220.00 N/mm2  
9

Cleavage
Conchoidal  
-  

Toughness
-  
1.5  

Specific Gravity
2.86-2.87  
5.0-5.3  

Transparency
Translucent to Opaque  
Translucent to Opaque  

Density
2.95-2.96 g/cm3  
-9999 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K  
15
3.20 kJ/Kg K  
1

Resistance
Heat Resistant, Impact Resistant  
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant  

Reserves

Deposits in Eastern Continents
  
  

Asia
Russia  
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam  

Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa  
Kenya, Morocco, South Africa, Tanzania  

Europe
England, Hungary, Iceland, United Kingdom  
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom  

Others
Antarctica, Greenland  
Greenland, Mid-Atlantic Ridge  

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA  
Canada, Mexico, USA  

South America
Argentina, Colombia, Ecuador  
Bolivia, Brazil  

Deposits in Oceania Continent
  
  

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

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Lamprophyre 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 Lamprophyre and Banded iron formation Reserves. Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions. 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 Lamprophyre vs Banded iron formation information and Lamprophyre vs Banded iron formation characteristics in the upcoming sections.

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Lamprophyre 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. Lamprophyre vs Banded iron formation characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Lamprophyre and Properties of Banded iron formation. Learn more about Lamprophyre vs Banded iron formation in the next section. The interior uses of Lamprophyre include Decorative aggregates and Interior decoration whereas the interior uses of Banded iron formation include Decorative aggregates and Homes. Due to some exceptional properties of Lamprophyre and Banded iron formation, they have various applications in construction industry. The uses of Lamprophyre in construction industry include As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories and that of Banded iron formation include As dimension stone, Used for flooring, stair treads, borders and window sills..

More about Lamprophyre and Banded iron formation

Here you can know more about Lamprophyre 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 Lamprophyre and Banded iron formation consists of mineral content and compound content. The mineral content of Lamprophyre includes Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, 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 Lamprophyre vs Banded iron formation, the texture, color and appearance plays an important role in determining the type of rock. Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas, Banded iron formation is available in red, reddish brown colors. Appearance of Lamprophyre is Dull, Banded and Foilated and that of Banded iron formation is Layered, Banded, Veined and Shiny. Properties of rock is another aspect for Lamprophyre vs Banded iron formation. The hardness of Lamprophyre is 5-6 and that of Banded iron formation is 5.5-6. The types of Lamprophyre are Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite 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 Lamprophyre and Banded iron formation is white. The specific heat capacity of Lamprophyre is 0.84 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.Lamprophyre is heat resistant, impact resistant whereas Banded iron formation is heat resistant, impact resistant, pressure resistant, wear resistant.

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