Banded iron formation

Sovite

Banded iron formation and Sovite

Banded iron formation

Sovite

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Definition

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

Sovite is a coarse-grained variety of carbonatite which belongs to intrusive igneous rock

History

Origin

Western Australia, Minnesota

Discoverer

Johann Gottlob Lehmann

Unknown

Etymology

From its formation process

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock

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

Texture

Banded, Trellis

Granular, Poikiloblastic

Color

Red, Reddish Brown

Black, Brown, Green, Grey, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Layered, Banded, Veined and Shiny

Dull, Banded and Foilated

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes

Exterior Uses

Paving Stone, Office Buildings

As Building Stone, Garden Decoration, Office Buildings

Other Architectural Uses

Curbing, Whetstones

Curbing

Industry

Construction Industry

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

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

As a touchstone, Cemetery Markers, Creating Artwork

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

Types

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

Carbonatite

Features

Is one of the oldest rock

Available in lots of colors, Generally rough to touch, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

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.

Sovites are formed due to low degrees of partial melting of rocks.

Composition

Mineral Content

Hematite, Magnetite, Quartz

Ancylite, Apatite, Barite, Fluorite, Magnetite, Natrolite, Sodalite

Compound Content

Fe, Iron(III) Oxide, Silicon Dioxide

CaO, Carbon Dioxide, Sodium Oxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Chemical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Coastal Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5.5-63

1 7

👆🏻

Grain Size

Large and Coarse Grained

Medium to Fine Coarse Grained

Fracture

Uneven, Splintery or Conchoidal

Conchoidal

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Earthy

Subvitreous to Dull

Compressive Strength

220.00 N/mm²195.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.5

Specific Gravity

5.0-5.32.86-2.87

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

-9999 g/cm³2.84-2.86 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

3.20 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

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

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

Africa

Kenya, Morocco, South Africa, Tanzania

Namibia, Nigeria, South Africa

Europe

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

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

Others

Greenland, Mid-Atlantic Ridge

Greenland

Deposits in Western Continents

North America

Canada, Mexico, USA

Canada, USA

South America

Bolivia, Brazil

Brazil

Deposits in Oceania Continent

Australia

New South Wales, Queensland, South Australia, Western Australia

New South Wales, New Zealand

All about Banded iron formation and Sovite Properties

Know all about Banded iron formation and Sovite properties here. All properties of rocks are important as they define the type of rock and its application. Banded iron formation belongs to Sedimentary Rocks while Sovite belongs to Igneous Rocks.Texture of Banded iron formation is Banded, Trellis whereas that of Sovite is Granular, Poikiloblastic. Banded iron formation appears Layered, Banded, Veined and Shiny and Sovite appears Dull, Banded and Foilated. The luster of Banded iron formation is earthy while that of Sovite is subvitreous to dull. Banded iron formation is available in red, reddish brown colors whereas Sovite is available in black, brown, green, grey, pink, white colors. The commercial uses of Banded iron formation are as a touchstone, cemetery markers, creating artwork and that of Sovite are an oil and gas reservoir, as a feed additive for livestock, creating artwork, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).