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Mugearite and Banded iron formation


Banded iron formation and Mugearite


Definition

Definition
Mugearite is a type of oligoclase bearing basalt, also comprising of olivine, apatite, and opaque oxides   
Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age   

History
  
  

Origin
Skye, Scotland   
Western Australia, Minnesota   

Discoverer
Alfred Harker   
Unknown   

Etymology
From mugear +‎ -ite   
From its formation process   

Class
Igneous Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Opaque Rock   
Coarse Grained Rock, Opaque Rock   

Texture

Texture
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular   
Banded, Trellis   

Color
Black, Brown, Light to Dark 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 and Soft   
Layered, Banded, Veined and Shiny   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing, Whetstones   

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone   
As Dimension Stone, Used for flooring, stair treads, borders and window sills.   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments, Sculpture   
Artifacts   

Other Uses
  
  

Commercial Uses
Creating Artwork   
As a touchstone, Cemetery Markers, Creating Artwork   

Types

Types
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite   
Algoma-type , Lake Superior-type, Superior-type and Taconite   

Features
Has High structural resistance against erosion and climate, Very fine grained rock   
Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Used   
Not Yet Used   

Famous Monuments
Data Not Available   
Not Applicable   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Used   
Not Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
Not Yet Used   

Fossils
Absent   
Present   

Formation

Formation
Mugearite forms when lava reaches the Earth's surface near an active volcano. The temperature of lava is between 1100 to 1250° C when it gets to the surface.   
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
Olivine, Plagioclase, Pyroxene   
Hematite, Magnetite, Quartz   

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

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Burial Metamorphism, Impact Metamorphism   
Not Applicable   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering   
Chemical Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Coastal Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
6   
5.5-6   

Grain Size
Not Applicable   
Large and Coarse Grained   

Fracture
Conchoidal   
Uneven, Splintery or Conchoidal   

Streak
White to Grey   
White   

Porosity
Less Porous   
Highly Porous   

Luster
Not Available   
Earthy   

Compressive Strength
37.50 N/mm2   
27
Not Available   

Cleavage
Not Applicable   
Imperfect   

Toughness
2.3   
1.5   

Specific Gravity
2.8-3   
5.0-5.3   

Transparency
Opaque   
Translucent to Opaque   

Density
2.9-3.1 g/cm3   
Not Available   

Thermal Properties
  
  

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

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

Reserves

Deposits in Eastern Continents
  
  

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

Africa
South Africa   
Kenya, Morocco, South Africa, Tanzania   

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

Others
Not Yet Found   
Greenland, Mid-Atlantic Ridge   

Deposits in Western Continents
  
  

North America
Canada, USA   
Canada, Mexico, USA   

South America
Brazil   
Bolivia, Brazil   

Deposits in Oceania Continent
  
  

Australia
Not Yet Found   
New South Wales, Queensland, South Australia, Western Australia   

Summary >>
<< Reserves

All about Mugearite and Banded iron formation Properties

Know all about Mugearite and Banded iron formation properties here. All properties of rocks are important as they define the type of rock and its application. Mugearite belongs to Igneous Rocks while Banded iron formation belongs to Sedimentary Rocks.Texture of Mugearite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Banded iron formation is Banded, Trellis. Mugearite appears Dull and Soft and Banded iron formation appears Layered, Banded, Veined and Shiny. The luster of Mugearite is not available while that of Banded iron formation is earthy. Mugearite is available in black, brown, light to dark grey colors whereas Banded iron formation is available in red, reddish brown colors. The commercial uses of Mugearite are creating artwork and that of Banded iron formation are as a touchstone, cemetery markers, creating artwork.

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