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Limestone
Limestone

Banded iron formation
Banded iron formation



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Limestone
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Banded iron formation

Limestone vs Banded iron formation

Definition

Definition

Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate
Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age

History

Origin

New Zealand
Western Australia, Minnesota

Discoverer

Belsazar Hacquet
Johann Gottlob Lehmann

Etymology

From lime and stone in late 14th Century
From its formation process

Class

Sedimentary Rocks
Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

-
-

Other Categories

Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock

Texture

Texture

Clastic or Non-Clastic
Banded, Trellis

Color

Beige, Black, Blue, Brown, Cream, Gold, Green, Grey, Light Green, Light Grey, Linen, Pink, Red, Rust, Silver, White, Yellow
Red, Reddish Brown

Maintenance

More
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough and Banded
Layered, Banded, Veined and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration
Decorative Aggregates, Homes

Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration, Office Buildings
Paving Stone, Office Buildings

Other Architectural Uses

Curbing
Curbing, Whetstones

Industry

Construction Industry

Cement Manufacture, Cobblestones, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar, Roadstone, Source of calcium
As Dimension Stone, Used for flooring, stair treads, borders and window sills.

Medical Industry

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics
-

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines
Artifacts

Other Uses

Commercial Uses

Animal feed filler, As a Feed Additive for Livestock, Paper Industry, Raw material for manufacture of quicklime, slaked lime, Soil Conditioner, Used in aquariums, Whiting material in toothpaste, paint and paper
As a touchstone, Cemetery Markers, Creating Artwork

Types

Types

Chalk, Coquina, Fossiliferous Limestone, Lithographic Limestone, Oolitic Limestone, Travertine, Tufa
Algoma-type , Lake Superior-type, Superior-type and Taconite

Features

Host Rock for Lead, Stalactites and stalagmites are formed from this rock, Zinc and Copper Deposits
Is one of the oldest rock

Archaeological Significance

Monuments

-
-

Famous Monuments

Acropolis of Athens in Greece, Agia Sophia in Istanbul, Turkey, Al Aqsa Mosque in Jerusalem, Angkor Wat in Cambodia, Big Ben in London, Charminar in Hyderabad, India, Chhatrapati Shivaji Terminus in Maharashtra, India, Chichen Itza in Mexico, Empire State Building in New York, Khajuraho Temples, India, Kremlin in Moscow, Louvre in Paris, France, Neuschwanstein in Bavaria, Potala Palace in Lahasa, Tibet, Wailing Wall in Jerusalem
-

Sculpture

-
-

Famous Sculptures

Ajanta Caves in Maharashtra, India, Elephanta Caves in Maharashtra, India
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Present

Formation

Formation

Limestone is a sedimentary rock which is mainly made up of calcium carbonate.
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

Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt
Hematite, Magnetite, Quartz

Compound Content

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, MgO
Fe, Iron(III) Oxide, Silicon Dioxide

Transformation

Metamorphism

Types of Metamorphism

-
-

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Chemical Weathering

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion
Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3-45.5-6
1 7
👆🏻

Grain Size

Fine Grained
Large and Coarse Grained

Fracture

Splintery
Uneven, Splintery or Conchoidal

Streak

White
White

Porosity

Less Porous
Highly Porous

Luster

Dull to Pearly
Earthy

Compressive Strength

115.00 N/mm2220.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

1
1.5

Specific Gravity

2.3-2.75.0-5.3
0 8.4
👆🏻

Transparency

Opaque
Translucent to Opaque

Density

2.3-2.7 g/cm3-9999 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.91 kJ/Kg K3.20 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam

Africa

Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Kenya, Morocco, South Africa, Tanzania

Europe

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

Others

-
Greenland, Mid-Atlantic Ridge

Deposits in Western Continents

North America

USA
Canada, Mexico, USA

South America

Colombia
Bolivia, Brazil

Deposits in Oceania Continent

Australia

Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula
New South Wales, Queensland, South Australia, Western Australia

Limestone 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 Limestone and Banded iron formation Reserves. Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate. 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 Limestone vs Banded iron formation information and Limestone vs Banded iron formation characteristics in the upcoming sections.

Limestone 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. Limestone vs Banded iron formation characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Limestone and Properties of Banded iron formation. Learn more about Limestone vs Banded iron formation in the next section. The interior uses of Limestone 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 Limestone and Banded iron formation, they have various applications in construction industry. The uses of Limestone in construction industry include Cement manufacture, Cobblestones, For road aggregate, Production of glass and ceramics, Raw material for the manufacture of mortar, Roadstone, Source of calcium and that of Banded iron formation include As dimension stone, Used for flooring, stair treads, borders and window sills..

More about Limestone and Banded iron formation

Here you can know more about Limestone 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 Limestone and Banded iron formation consists of mineral content and compound content. The mineral content of Limestone includes Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt and mineral content of Banded iron formation includes Hematite, Magnetite, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Limestone vs Banded iron formation, the texture, color and appearance plays an important role in determining the type of rock. Limestone is available in beige, black, blue, brown, cream, gold, green, grey, light green, light grey, linen, pink, red, rust, silver, white, yellow colors whereas, Banded iron formation is available in red, reddish brown colors. Appearance of Limestone is Rough and Banded and that of Banded iron formation is Layered, Banded, Veined and Shiny. Properties of rock is another aspect for Limestone vs Banded iron formation. The hardness of Limestone is 3-4 and that of Banded iron formation is 5.5-6. The types of Limestone are Chalk, Coquina, Fossiliferous Limestone, Lithographic Limestone, Oolitic Limestone, Travertine, Tufa 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 Limestone and Banded iron formation is white. The specific heat capacity of Limestone is 0.91 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.Limestone is pressure resistant whereas Banded iron formation is heat resistant, impact resistant, pressure resistant, wear resistant.