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Banded iron formation
Banded iron formation

Obsidian
Obsidian



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Banded iron formation
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Obsidian

Banded iron formation and Obsidian

Definition

Definition

Origin

Discoverer

Etymology

Class

Sub-Class

Group

Other Categories

Texture

Texture

Color

Maintenance

Durability

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Uses

Interior Uses

Exterior Uses

Other Architectural Uses

Construction Industry

Medical Industry

Antiquity Uses

Commercial Uses

Types

Types

Features

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Formation

Formation

Mineral Content

Compound Content

Metamorphism

Types of Metamorphism

Weathering

Types of Weathering

Erosion

Types of Erosion

Properties

Hardness

Grain Size

Fracture

Streak

Porosity

Luster

Compressive Strength

Cleavage

Toughness

Specific Gravity

Transparency

Density

Specific Heat Capacity

Resistance

Reserves

Asia

Africa

Europe

Others

North America

South America

Australia

 
Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age
Western Australia, Minnesota
Johann Gottlob Lehmann
From its formation process
Sedimentary Rocks
Durable Rock, Medium Hardness Rock
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Coarse Grained Rock, Opaque Rock
 
Banded, Trellis
Red, Reddish Brown
Less
Durable
Layered, Banded, Veined and Shiny
 
Decorative Aggregates, Homes
Paving Stone, Office Buildings
Curbing, Whetstones
As Dimension Stone, Used for flooring, stair treads, borders and window sills.
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Artifacts
As a touchstone, Cemetery Markers, Creating Artwork
 
Algoma-type , Lake Superior-type, Superior-type and Taconite
Is one of the oldest rock
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Present
 
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.
Hematite, Magnetite, Quartz
Fe, Iron(III) Oxide, Silicon Dioxide
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Chemical Weathering
Coastal Erosion, Wind Erosion
 
5.5-6
Large and Coarse Grained
Uneven, Splintery or Conchoidal
White
Highly Porous
Earthy
220.00 N/mm2
-
1.5
5.0-5.3
Translucent to Opaque
-9999 g/cm3
3.20 kJ/Kg K
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
 
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
Kenya, Morocco, South Africa, Tanzania
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
Greenland, Mid-Atlantic Ridge
Canada, Mexico, USA
Bolivia, Brazil
New South Wales, Queensland, South Australia, Western Australia
 
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth
Ethiopia
Obsius
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius
Igneous Rocks
Durable Rock, Medium Hardness Rock
Volcanic
Opaque Rock
 
Glassy
Black, Blue, Brown, Green, Orange, Red, Tan, Yellow
Less
Durable
Shiny
 
Decorative Aggregates, Interior Decoration
Garden Decoration
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Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points
Surgery
Artifacts, Jewellery
Creating Artwork, Mirror, Used in aquariums
 
Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian
Blocks negativity, Helps to protect against depression
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Absent
 
When the lava is released from volcano, it undergoes a very rapid cooling which freezes the mechanisms of crystallization. The result is a volcanic glass with a uniform smooth texture.
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Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Erosion, Coastal Erosion, Glacier Erosion
 
5-5.5
-
Conchoidal
White
Very Less Porous
Vitreous
0.15 N/mm2
-
-
2.6-2.7
Translucent
2.6 g/cm3
0.92 kJ/Kg K
Heat Resistant, Impact Resistant
 
Afghanistan, Indonesia, Japan, Russia
Kenya
Greece, Hungary, Iceland, Italy, Turkey
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Canada, Mexico, USA
Argentina, Chile, Ecuador, Peru
New Zealand

All about Banded iron formation and Obsidian Properties

Know all about Banded iron formation and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Banded iron formation and Obsidian belong to .Texture of Banded iron formation is whereas that of Obsidian is . Banded iron formation appears and Obsidian appears . The luster of Banded iron formation and Obsidian is . Banded iron formation and Obsidian are available in colors. The commercial uses of Banded iron formation and Obsidian are .