Banded iron formation

Gritstone

Banded iron formation vs Gritstone

Banded iron formation

Gritstone

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1 Definition

1.1 Definition

Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age

Gritstone or grit is a hard, coarse-grained, siliceous sandstone

1.2 History

1.2.1 Origin

Western Australia, Minnesota

Pennines, England

1.2.2 Discoverer

Unknown

J.J. Ferber

1.3 Etymology

From its formation process

From Grit + Stone

1.4 Class

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Banded, Trellis

Earthy

2.2 Color

Red, Reddish Brown

Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

59% Sedimentary Rocks Rocks have it !

✔ ✘

59% Sedimentary Rocks Rocks have it !

2.4.2 Scratch Resistant

✔ ✘

62% Sedimentary Rocks Rocks have it !

✔ ✘

62% Sedimentary Rocks Rocks have it !

2.4.3 Stain Resistant

✔ ✘

43% Sedimentary Rocks Rocks have it !

✔ ✘

43% Sedimentary Rocks Rocks have it !

2.4.4 Wind Resistant

✔ ✘

38% Sedimentary Rocks Rocks have it !

✔ ✘

38% Sedimentary Rocks Rocks have it !

2.4.5 Acid Resistant

✔ ✘

22% Sedimentary Rocks Rocks have it !

✔ ✘

22% Sedimentary Rocks Rocks have it !

2.5 Appearance

Layered, Banded, Veined and Shiny

Layered and Foliated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes

Countertops, Decorative Aggregates, Homes, Interior Decoration

3.1.2 Exterior Uses

Paving Stone, Office Buildings

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

3.1.3 Other Architectural Uses

Curbing, Whetstones

Curbing

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Used for flooring, stair treads, borders and window sills.

Construction Aggregate, Roadstone

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

As a touchstone, Cemetery Markers, Creating Artwork

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO), Tombstones

4 Types

4.1 Types

Algoma-type , Lake Superior-type, Superior-type and Taconite

Not Available

4.2 Features

Is one of the oldest rock

Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

Used

4.3.2 Famous Monuments

Not Applicable

Data Not Available

4.3.3 Sculpture

Not Yet Used

Used

4.3.4 Famous Sculptures

Not Applicable

Data Not Available

4.3.5 Pictographs

Not Used

4.3.6 Petroglyphs

Not Used

4.3.7 Figurines

Not Yet Used

Used

4.4 Fossils

Present

5 Formation

5.1 Formation

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.

Gritstone is a type of sedimentary rock which was formed on the floors of wide river deltas where the grit deposits were laid down, with every tide or flood dumping another layer of sediment.

5.2 Composition

5.2.1 Mineral Content

Hematite, Magnetite, Quartz

Calcite, Clay Minerals, Feldspar, Micas, Quartz

5.2.2 Compound Content

Fe, Iron(III) Oxide, Silicon Dioxide

Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

19% Sedimentary Rocks Rocks have it !

✔ ✘

19% Sedimentary Rocks Rocks have it !

5.3.2 Types of Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

78% Sedimentary Rocks Rocks have it !

✔ ✘

78% Sedimentary Rocks Rocks have it !

5.3.4 Types of Weathering

Chemical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

86% Sedimentary Rocks Rocks have it !

✔ ✘

86% Sedimentary Rocks Rocks have it !

5.3.6 Types of Erosion

Coastal Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

5.5-6

6-7

6.1.2 Grain Size

Large and Coarse Grained

Coarse Grained

6.1.3 Fracture

Uneven, Splintery or Conchoidal

Conchoidal

6.1.4 Streak

White

6.1.5 Porosity

Highly Porous

6.1.6 Luster

Earthy

Dull

6.1.7 Compressive Strength

Flint

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▶

▼

Not Available

Rank: N/A (Overall)▶

70.00 N/mm²

Rank: 24 (Overall)▶

▲

Obsidian

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▶

175 (Granite)

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6.1.8 Cleavage

Imperfect

Perfect

6.1.9 Toughness

1.5

Not Available

6.1.10 Specific Gravity

5.0-5.3

2.250

6.1.11 Transparency

Translucent to Opaque

Opaque

6.1.12 Density

Not Available

2.2 g/cm³

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

Banded iron for..

⊕

▶

▼

3.20 kJ/Kg K

Rank: 1 (Overall)▶

0.92 kJ/Kg K

Rank: 10 (Overall)▶

▲

Granulite

⊕

▶

1.09 (Travertine)

◀ ▶ ADD ⊕

6.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

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

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

7.1.2 Africa

Kenya, Morocco, South Africa, Tanzania

Namibia, Nigeria, South Africa

7.1.3 Europe

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

Austria, Denmark, Germany, Great Britain, Netherlands, Poland, Sweden, Switzerland, United Kingdom

7.1.4 Others

Greenland, Mid-Atlantic Ridge

Greenland

7.2 Deposits in Western Continents

7.2.1 North America

Canada, Mexico, USA

Canada, USA

7.2.2 South America

Bolivia, Brazil

Brazil

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, Queensland, South Australia, Western Australia

New South Wales, New Zealand, Western Australia

Banded iron formation vs Gritstone 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 Banded iron formation and Gritstone Reserves. Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age. Gritstone or grit is a hard, coarse-grained, siliceous sandstone. 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 Banded iron formation vs Gritstone information and Banded iron formation vs Gritstone characteristics in the upcoming sections.

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

More about Banded iron formation and Gritstone

Here you can know more about Banded iron formation and Gritstone. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Banded iron formation and Gritstone consists of mineral content and compound content. The mineral content of Banded iron formation includes Hematite, Magnetite, Quartz and mineral content of Gritstone includes Calcite, Clay Minerals, Feldspar, Micas, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Banded iron formation vs Gritstone, the texture, color and appearance plays an important role in determining the type of rock. Banded iron formation is available in red, reddish brown colors whereas, Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. Appearance of Banded iron formation is Layered, Banded, Veined and Shiny and that of Gritstone is Layered and Foliated. Properties of rock is another aspect for Banded iron formation vs Gritstone. The hardness of Banded iron formation is 5.5-6 and that of Gritstone is 6-7. The types of Banded iron formation are Algoma-type , Lake Superior-type, Superior-type and Taconite whereas types of Gritstone are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Banded iron formation and Gritstone is white. The specific heat capacity of Banded iron formation is 3.20 kJ/Kg K and that of Gritstone is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Banded iron formation is heat resistant, impact resistant, pressure resistant, wear resistant whereas Gritstone is heat resistant, impact resistant, pressure resistant.